Empathy List Archives

JH

John Howell

Tue, Jan 24, 2012 9:59 PM

Hi All,

I recently obtained a curious Low Frequency Standard dating from the late 1950s. Its output can be switched to a number of frequencies from 10 to 190Hz, derived from a tuning fork. It is marked "Signal Corps" and "US Army" with a type number TS-65D/FMQ-1.

Does anyone have any information about this unit, in particular what it was used for and why the strange negative going pulse output and specific frequencies.

Thanks in advance,
John H.

Hi All, I recently obtained a curious Low Frequency Standard dating from the late 1950s. Its output can be switched to a number of frequencies from 10 to 190Hz, derived from a tuning fork. It is marked "Signal Corps" and "US Army" with a type number TS-65D/FMQ-1. Does anyone have any information about this unit, in particular what it was used for and why the strange negative going pulse output and specific frequencies. Thanks in advance, John H.

BC

Bob Camp

Tue, Jan 24, 2012 10:09 PM

Hi

Sounds about right for calibrating / verifying vibrating reed frequency
readouts.

Bob

-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
Behalf Of John Howell
Sent: Tuesday, January 24, 2012 5:00 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] US Army Frequency Standard

Hi All,

I recently obtained a curious Low Frequency Standard dating from the late
1950s. Its output can be switched to a number of frequencies from 10 to
190Hz, derived from a tuning fork. It is marked "Signal Corps" and "US Army"
with a type number TS-65D/FMQ-1.

Does anyone have any information about this unit, in particular what it was
used for and why the strange negative going pulse output and specific
frequencies.

Thanks in advance,
John H.

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

Hi Sounds about right for calibrating / verifying vibrating reed frequency readouts. Bob -----Original Message----- From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On Behalf Of John Howell Sent: Tuesday, January 24, 2012 5:00 PM To: Discussion of precise time and frequency measurement Subject: [time-nuts] US Army Frequency Standard Hi All, I recently obtained a curious Low Frequency Standard dating from the late 1950s. Its output can be switched to a number of frequencies from 10 to 190Hz, derived from a tuning fork. It is marked "Signal Corps" and "US Army" with a type number TS-65D/FMQ-1. Does anyone have any information about this unit, in particular what it was used for and why the strange negative going pulse output and specific frequencies. Thanks in advance, John H. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.

JH

John Howell

Tue, Jan 24, 2012 10:29 PM

Thanks Bob,

If it helps the switched frequencies are: 0, 10, 20, 40, 60, 80, 100, 120, 140, 160, 180, 190Hz.

John.

On 24 Jan 2012, at 22:09, Bob Camp wrote:

Hi

Sounds about right for calibrating / verifying vibrating reed frequency
readouts.

Bob

-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
Behalf Of John Howell
Sent: Tuesday, January 24, 2012 5:00 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] US Army Frequency Standard

Hi All,

I recently obtained a curious Low Frequency Standard dating from the late
1950s. Its output can be switched to a number of frequencies from 10 to
190Hz, derived from a tuning fork. It is marked "Signal Corps" and "US Army"
with a type number TS-65D/FMQ-1.

Does anyone have any information about this unit, in particular what it was
used for and why the strange negative going pulse output and specific
frequencies.

Thanks in advance,
John H.

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

Thanks Bob, If it helps the switched frequencies are: 0, 10, 20, 40, 60, 80, 100, 120, 140, 160, 180, 190Hz. John. On 24 Jan 2012, at 22:09, Bob Camp wrote: > Hi > > Sounds about right for calibrating / verifying vibrating reed frequency > readouts. > > Bob > > -----Original Message----- > From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On > Behalf Of John Howell > Sent: Tuesday, January 24, 2012 5:00 PM > To: Discussion of precise time and frequency measurement > Subject: [time-nuts] US Army Frequency Standard > > Hi All, > > I recently obtained a curious Low Frequency Standard dating from the late > 1950s. Its output can be switched to a number of frequencies from 10 to > 190Hz, derived from a tuning fork. It is marked "Signal Corps" and "US Army" > with a type number TS-65D/FMQ-1. > > > Does anyone have any information about this unit, in particular what it was > used for and why the strange negative going pulse output and specific > frequencies. > > Thanks in advance, > John H. > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there.

JF

J. Forster

Tue, Jan 24, 2012 10:29 PM

It appears to be a Test Set for the FMQ-1 Radiosonde Receiveing system.
Radiosondes used audio tones to encode temperature, pressure, and humidity
as audio tones and transmitted those tones to a ground station where they
were demodulated and recorded.

Interestingly, this thing apparently used a tuning fork to run a
synchronous motor with a disk with holes punched in it to generate the
tones. I've only been able to fing the -24P manual, which is an
illustrated parts list.

I'd try either ArmyRadios Group on Yahoo or Milsurplus on QTH

Best,

-John

===========

Hi All,

I recently obtained a curious Low Frequency Standard dating from the late
1950s. Its output can be switched to a number of frequencies from 10 to
190Hz, derived from a tuning fork. It is marked "Signal Corps" and "US
Army" with a type number TS-65D/FMQ-1.

Does anyone have any information about this unit, in particular what it
was used for and why the strange negative going pulse output and specific
frequencies.

Thanks in advance,
John H.

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

It appears to be a Test Set for the FMQ-1 Radiosonde Receiveing system. Radiosondes used audio tones to encode temperature, pressure, and humidity as audio tones and transmitted those tones to a ground station where they were demodulated and recorded. Interestingly, this thing apparently used a tuning fork to run a synchronous motor with a disk with holes punched in it to generate the tones. I've only been able to fing the -24P manual, which is an illustrated parts list. I'd try either ArmyRadios Group on Yahoo or Milsurplus on QTH Best, -John =========== > Hi All, > > I recently obtained a curious Low Frequency Standard dating from the late > 1950s. Its output can be switched to a number of frequencies from 10 to > 190Hz, derived from a tuning fork. It is marked "Signal Corps" and "US > Army" with a type number TS-65D/FMQ-1. > > Does anyone have any information about this unit, in particular what it > was used for and why the strange negative going pulse output and specific > frequencies. > > Thanks in advance, > John H. > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > >

J

jmfranke

Tue, Jan 24, 2012 10:34 PM

If it is the instrument I remember, the tuning fork was used to generate the
drive for a synchronous motor. The motor drove a disc with hole patterns at
different radial positions. The frequency control moved a photo cell
assembly to pick off the different frequencies from the disc.

John WA4WDL

From: "John Howell" j@howell61.f9.co.uk
Sent: Tuesday, January 24, 2012 5:29 PM
To: "Discussion of precise time and frequency measurement"
time-nuts@febo.com
Subject: Re: [time-nuts] US Army Frequency Standard

Thanks Bob,

If it helps the switched frequencies are: 0, 10, 20, 40, 60, 80, 100, 120,
140, 160, 180, 190Hz.

John.

On 24 Jan 2012, at 22:09, Bob Camp wrote:

Hi

Sounds about right for calibrating / verifying vibrating reed frequency
readouts.

Bob

-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
Behalf Of John Howell
Sent: Tuesday, January 24, 2012 5:00 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] US Army Frequency Standard

Hi All,

I recently obtained a curious Low Frequency Standard dating from the late
1950s. Its output can be switched to a number of frequencies from 10 to
190Hz, derived from a tuning fork. It is marked "Signal Corps" and "US
Army"
with a type number TS-65D/FMQ-1.

Does anyone have any information about this unit, in particular what it
was
used for and why the strange negative going pulse output and specific
frequencies.

Thanks in advance,
John H.

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

If it is the instrument I remember, the tuning fork was used to generate the drive for a synchronous motor. The motor drove a disc with hole patterns at different radial positions. The frequency control moved a photo cell assembly to pick off the different frequencies from the disc. John WA4WDL -------------------------------------------------- From: "John Howell" <j@howell61.f9.co.uk> Sent: Tuesday, January 24, 2012 5:29 PM To: "Discussion of precise time and frequency measurement" <time-nuts@febo.com> Subject: Re: [time-nuts] US Army Frequency Standard > Thanks Bob, > > If it helps the switched frequencies are: 0, 10, 20, 40, 60, 80, 100, 120, > 140, 160, 180, 190Hz. > > John. > > On 24 Jan 2012, at 22:09, Bob Camp wrote: > >> Hi >> >> Sounds about right for calibrating / verifying vibrating reed frequency >> readouts. >> >> Bob >> >> -----Original Message----- >> From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On >> Behalf Of John Howell >> Sent: Tuesday, January 24, 2012 5:00 PM >> To: Discussion of precise time and frequency measurement >> Subject: [time-nuts] US Army Frequency Standard >> >> Hi All, >> >> I recently obtained a curious Low Frequency Standard dating from the late >> 1950s. Its output can be switched to a number of frequencies from 10 to >> 190Hz, derived from a tuning fork. It is marked "Signal Corps" and "US >> Army" >> with a type number TS-65D/FMQ-1. >> >> >> Does anyone have any information about this unit, in particular what it >> was >> used for and why the strange negative going pulse output and specific >> frequencies. >> >> Thanks in advance, >> John H. >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. >

BC

Brooke Clarke

Tue, Jan 24, 2012 10:34 PM

Hi John:

Is there a photo of the freq std on line?

Have Fun,

Brooke Clarke
http://www.PRC68.com
http://www.end2partygovernment.com/Brooke4Congress.html

John Howell wrote:

Thanks Bob,

If it helps the switched frequencies are: 0, 10, 20, 40, 60, 80, 100, 120, 140, 160, 180, 190Hz.

John.

On 24 Jan 2012, at 22:09, Bob Camp wrote:

Hi

Sounds about right for calibrating / verifying vibrating reed frequency
readouts.

Bob

-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
Behalf Of John Howell
Sent: Tuesday, January 24, 2012 5:00 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] US Army Frequency Standard

Hi All,

I recently obtained a curious Low Frequency Standard dating from the late
1950s. Its output can be switched to a number of frequencies from 10 to
190Hz, derived from a tuning fork. It is marked "Signal Corps" and "US Army"
with a type number TS-65D/FMQ-1.

Does anyone have any information about this unit, in particular what it was
used for and why the strange negative going pulse output and specific
frequencies.

Thanks in advance,
John H.

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

Hi John: Is there a photo of the freq std on line? Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/Brooke4Congress.html John Howell wrote: > Thanks Bob, > > If it helps the switched frequencies are: 0, 10, 20, 40, 60, 80, 100, 120, 140, 160, 180, 190Hz. > > John. > > On 24 Jan 2012, at 22:09, Bob Camp wrote: > >> Hi >> >> Sounds about right for calibrating / verifying vibrating reed frequency >> readouts. >> >> Bob >> >> -----Original Message----- >> From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On >> Behalf Of John Howell >> Sent: Tuesday, January 24, 2012 5:00 PM >> To: Discussion of precise time and frequency measurement >> Subject: [time-nuts] US Army Frequency Standard >> >> Hi All, >> >> I recently obtained a curious Low Frequency Standard dating from the late >> 1950s. Its output can be switched to a number of frequencies from 10 to >> 190Hz, derived from a tuning fork. It is marked "Signal Corps" and "US Army" >> with a type number TS-65D/FMQ-1. >> >> >> Does anyone have any information about this unit, in particular what it was >> used for and why the strange negative going pulse output and specific >> frequencies. >> >> Thanks in advance, >> John H. >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > >

JF

J. Forster

Tue, Jan 24, 2012 10:59 PM

Google:

"FMQ-1" Test Set

The -24P Parts Manual w/ exploded parts ID is in many places and has a
drawing of the front panel. It has no schematics.

The full manual will be -15 to -45 Depot Maintenance Manual, per standard
Army nomenclature. The last digit will be 5, without a following P.

-John

============

Hi John:

Is there a photo of the freq std on line?

Have Fun,

Brooke Clarke
http://www.PRC68.com
http://www.end2partygovernment.com/Brooke4Congress.html

John Howell wrote:

Thanks Bob,

If it helps the switched frequencies are: 0, 10, 20, 40, 60, 80, 100,
120, 140, 160, 180, 190Hz.

John.

On 24 Jan 2012, at 22:09, Bob Camp wrote:

Hi

Sounds about right for calibrating / verifying vibrating reed frequency
readouts.

Bob

-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
Behalf Of John Howell
Sent: Tuesday, January 24, 2012 5:00 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] US Army Frequency Standard

Hi All,

I recently obtained a curious Low Frequency Standard dating from the
late
1950s. Its output can be switched to a number of frequencies from 10 to
190Hz, derived from a tuning fork. It is marked "Signal Corps" and "US
Army"
with a type number TS-65D/FMQ-1.

Does anyone have any information about this unit, in particular what it
was
used for and why the strange negative going pulse output and specific
frequencies.

Thanks in advance,
John H.

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

Google: "FMQ-1" Test Set The -24P Parts Manual w/ exploded parts ID is in many places and has a drawing of the front panel. It has no schematics. The full manual will be -15 to -45 Depot Maintenance Manual, per standard Army nomenclature. The last digit will be 5, without a following P. -John ============ > Hi John: > > Is there a photo of the freq std on line? > > Have Fun, > > Brooke Clarke > http://www.PRC68.com > http://www.end2partygovernment.com/Brooke4Congress.html > > > John Howell wrote: >> Thanks Bob, >> >> If it helps the switched frequencies are: 0, 10, 20, 40, 60, 80, 100, >> 120, 140, 160, 180, 190Hz. >> >> John. >> >> On 24 Jan 2012, at 22:09, Bob Camp wrote: >> >>> Hi >>> >>> Sounds about right for calibrating / verifying vibrating reed frequency >>> readouts. >>> >>> Bob >>> >>> -----Original Message----- >>> From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On >>> Behalf Of John Howell >>> Sent: Tuesday, January 24, 2012 5:00 PM >>> To: Discussion of precise time and frequency measurement >>> Subject: [time-nuts] US Army Frequency Standard >>> >>> Hi All, >>> >>> I recently obtained a curious Low Frequency Standard dating from the >>> late >>> 1950s. Its output can be switched to a number of frequencies from 10 to >>> 190Hz, derived from a tuning fork. It is marked "Signal Corps" and "US >>> Army" >>> with a type number TS-65D/FMQ-1. >>> >>> >>> Does anyone have any information about this unit, in particular what it >>> was >>> used for and why the strange negative going pulse output and specific >>> frequencies. >>> >>> Thanks in advance, >>> John H. >>> >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@febo.com >>> To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >>> >>> >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@febo.com >>> To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> >> > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > >

SW

Stan, W1LE

Tue, Jan 24, 2012 11:19 PM

Possibly tuning up the mechanicals of a teletype set.

Stan, W1LE

On 1/24/2012 4:59 PM, John Howell wrote:

Hi All,

I recently obtained a curious Low Frequency Standard dating from the late 1950s. Its output can be switched to a number of frequencies from 10 to 190Hz, derived from a tuning fork. It is marked "Signal Corps" and "US Army" with a type number TS-65D/FMQ-1.

Does anyone have any information about this unit, in particular what it was used for and why the strange negative going pulse output and specific frequencies.

Thanks in advance,
John H.

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

Possibly tuning up the mechanicals of a teletype set. Stan, W1LE On 1/24/2012 4:59 PM, John Howell wrote: > Hi All, > > I recently obtained a curious Low Frequency Standard dating from the late 1950s. Its output can be switched to a number of frequencies from 10 to 190Hz, derived from a tuning fork. It is marked "Signal Corps" and "US Army" with a type number TS-65D/FMQ-1. > > Does anyone have any information about this unit, in particular what it was used for and why the strange negative going pulse output and specific frequencies. > > Thanks in advance, > John H. > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. >

MD

Magnus Danielson

Tue, Jan 24, 2012 11:55 PM

On 01/24/2012 11:59 PM, J. Forster wrote:

Google:

"FMQ-1" Test Set

The -24P Parts Manual w/ exploded parts ID is in many places and has a
drawing of the front panel. It has no schematics.

The full manual will be -15 to -45 Depot Maintenance Manual, per standard
Army nomenclature. The last digit will be 5, without a following P.

Google has TM 11-6625-407-14 scanned.

The fold-out schematic pages isn't folded out... but you get a pretty
good idea how it works from the rest of the text.

The schematics is there fractioned over the pages explaining it.

Cheers,
Magnus

On 01/24/2012 11:59 PM, J. Forster wrote: > Google: > > "FMQ-1" Test Set > > The -24P Parts Manual w/ exploded parts ID is in many places and has a > drawing of the front panel. It has no schematics. > > The full manual will be -15 to -45 Depot Maintenance Manual, per standard > Army nomenclature. The last digit will be 5, without a following P. Google has TM 11-6625-407-14 scanned. The fold-out schematic pages isn't folded out... but you get a pretty good idea how it works from the rest of the text. The schematics is there fractioned over the pages explaining it. Cheers, Magnus

JF

J. Forster

Wed, Jan 25, 2012 12:09 AM

Ah, thanks.

I have complained to Google about that scanning issue. IMO, it's a real
problem.

In a few years, Google may have the only extant copy of some doc.

And it will be near useless w/o the fully scanned pages. This is the third
time this has come up in the last few months.

Either they should do it correctly, or not at all.

YMMV,

-John

=================

On 01/24/2012 11:59 PM, J. Forster wrote:

Google:

"FMQ-1" Test Set

The -24P Parts Manual w/ exploded parts ID is in many places and has a
drawing of the front panel. It has no schematics.

The full manual will be -15 to -45 Depot Maintenance Manual, per
standard
Army nomenclature. The last digit will be 5, without a following P.

Google has TM 11-6625-407-14 scanned.

The fold-out schematic pages isn't folded out... but you get a pretty
good idea how it works from the rest of the text.

The schematics is there fractioned over the pages explaining it.

Cheers,
Magnus

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

Ah, thanks. I have complained to Google about that scanning issue. IMO, it's a real problem. In a few years, Google may have the only extant copy of some doc. And it will be near useless w/o the fully scanned pages. This is the third time this has come up in the last few months. Either they should do it correctly, or not at all. YMMV, -John ================= > On 01/24/2012 11:59 PM, J. Forster wrote: >> Google: >> >> "FMQ-1" Test Set >> >> The -24P Parts Manual w/ exploded parts ID is in many places and has a >> drawing of the front panel. It has no schematics. >> >> The full manual will be -15 to -45 Depot Maintenance Manual, per >> standard >> Army nomenclature. The last digit will be 5, without a following P. > > Google has TM 11-6625-407-14 scanned. > > The fold-out schematic pages isn't folded out... but you get a pretty > good idea how it works from the rest of the text. > > The schematics is there fractioned over the pages explaining it. > > Cheers, > Magnus > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > >

JH

John Howell

Wed, Jan 25, 2012 2:45 AM

Thank you everyone for your comments, and if I've got it right Brooke, if you paste this into your browser:

http://www.flickr.com//photos/75ohm/sets/72157629019710615/show/

you should get a quick tour and a movie!

This is indeed a tuning fork driving a synchronous motor that has a perforated disc on its shaft. The whole unit operates as it should and the quality of manufacture is superb, so I'm reluctant to pull it apart but I am curious as to the type of photocell it uses. It seems very small and the dates on many of the components suggest manufacture in the mid to late 1950s so what was around to do the job at that time? There is no cathode bias on the "voltage amplifier" that it feeds which suggests it s Photovoltaic rather than Photoconductive.

Thanks again for your replies,

John H.

On 24 Jan 2012, at 22:34, Brooke Clarke wrote:

Hi John:

Is there a photo of the freq std on line?

Have Fun,

Brooke Clarke
http://www.PRC68.com
http://www.end2partygovernment.com/Brooke4Congress.html

John Howell wrote:

Thanks Bob,

If it helps the switched frequencies are: 0, 10, 20, 40, 60, 80, 100, 120, 140, 160, 180, 190Hz.

John.

On 24 Jan 2012, at 22:09, Bob Camp wrote:

Hi

Sounds about right for calibrating / verifying vibrating reed frequency
readouts.

Bob

-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
Behalf Of John Howell
Sent: Tuesday, January 24, 2012 5:00 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] US Army Frequency Standard

Hi All,

I recently obtained a curious Low Frequency Standard dating from the late
1950s. Its output can be switched to a number of frequencies from 10 to
190Hz, derived from a tuning fork. It is marked "Signal Corps" and "US Army"
with a type number TS-65D/FMQ-1.

Does anyone have any information about this unit, in particular what it was
used for and why the strange negative going pulse output and specific
frequencies.

Thanks in advance,
John H.

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

Thank you everyone for your comments, and if I've got it right Brooke, if you paste this into your browser: http://www.flickr.com//photos/75ohm/sets/72157629019710615/show/ you should get a quick tour and a movie! This is indeed a tuning fork driving a synchronous motor that has a perforated disc on its shaft. The whole unit operates as it should and the quality of manufacture is superb, so I'm reluctant to pull it apart but I am curious as to the type of photocell it uses. It seems very small and the dates on many of the components suggest manufacture in the mid to late 1950s so what was around to do the job at that time? There is no cathode bias on the "voltage amplifier" that it feeds which suggests it s Photovoltaic rather than Photoconductive. Thanks again for your replies, John H. On 24 Jan 2012, at 22:34, Brooke Clarke wrote: > Hi John: > > Is there a photo of the freq std on line? > > Have Fun, > > Brooke Clarke > http://www.PRC68.com > http://www.end2partygovernment.com/Brooke4Congress.html > > > John Howell wrote: >> Thanks Bob, >> >> If it helps the switched frequencies are: 0, 10, 20, 40, 60, 80, 100, 120, 140, 160, 180, 190Hz. >> >> John. >> >> On 24 Jan 2012, at 22:09, Bob Camp wrote: >> >>> Hi >>> >>> Sounds about right for calibrating / verifying vibrating reed frequency >>> readouts. >>> >>> Bob >>> >>> -----Original Message----- >>> From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On >>> Behalf Of John Howell >>> Sent: Tuesday, January 24, 2012 5:00 PM >>> To: Discussion of precise time and frequency measurement >>> Subject: [time-nuts] US Army Frequency Standard >>> >>> Hi All, >>> >>> I recently obtained a curious Low Frequency Standard dating from the late >>> 1950s. Its output can be switched to a number of frequencies from 10 to >>> 190Hz, derived from a tuning fork. It is marked "Signal Corps" and "US Army" >>> with a type number TS-65D/FMQ-1. >>> >>> >>> Does anyone have any information about this unit, in particular what it was >>> used for and why the strange negative going pulse output and specific >>> frequencies. >>> >>> Thanks in advance, >>> John H. >>> >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@febo.com >>> To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >>> >>> >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@febo.com >>> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> >> > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there.

BH

Bill Hawkins

Wed, Jan 25, 2012 4:11 AM

Amazing, the things that can be picked out of the noise.

I have one of these frequency standards, but it belonged to the US
Dept. of Commerce, during the period 1965 to 1970 when the DoC was
given the weather bureau, named Environmental Science Services (ESSA).
It was last calibrated 9-27-72, after ESSA became NOAA.

The schematic on the cover of the cable box, inside the door, has
the schematic for "Frequency Standard TS-65C/FMQ-1" The box contains
two cables, one with a PL-259 and one with a BNC connector.

The name tag says "Type 2509-2 Ser 140" made by American Time Products
in New York, licensed under Western Electric patents. ATP made timing
chart devices for setting the correct rate for a wrist or pocket watch.
Google has nothing for ATP, but a search for "TS-65C/FMQ-1" has one by
Newton Time Products, which had negative search results.

My device works, 60 Hz reads 60.06, which is 0.1%, but the 10 and 20 Hz
ranges unaccountably have no output. Abe Books has a manual for $5.

Since I'm cleaning out, this mechanical marvel is yours for the cost
of shipping 24 pounds in a 12x12x20 box from Minneapolis 55438. It goes
on the scrap truck Thursday if no one wants old stuff, as usual.

Bill Hawkins

Amazing, the things that can be picked out of the noise. I have one of these frequency standards, but it belonged to the US Dept. of Commerce, during the period 1965 to 1970 when the DoC was given the weather bureau, named Environmental Science Services (ESSA). It was last calibrated 9-27-72, after ESSA became NOAA. The schematic on the cover of the cable box, inside the door, has the schematic for "Frequency Standard TS-65C/FMQ-1" The box contains two cables, one with a PL-259 and one with a BNC connector. The name tag says "Type 2509-2 Ser 140" made by American Time Products in New York, licensed under Western Electric patents. ATP made timing chart devices for setting the correct rate for a wrist or pocket watch. Google has nothing for ATP, but a search for "TS-65C/FMQ-1" has one by Newton Time Products, which had negative search results. My device works, 60 Hz reads 60.06, which is 0.1%, but the 10 and 20 Hz ranges unaccountably have no output. Abe Books has a manual for $5. Since I'm cleaning out, this mechanical marvel is yours for the cost of shipping 24 pounds in a 12x12x20 box from Minneapolis 55438. It goes on the scrap truck Thursday if no one wants old stuff, as usual. Bill Hawkins

JF

J. Forster

Wed, Jan 25, 2012 4:56 AM

American Time Products still exists:

http://www.powercontroldevices.com/about-us/

ATP has also been closely connected to Buliva, makers of the Accutron.

-John

================

Amazing, the things that can be picked out of the noise.

I have one of these frequency standards, but it belonged to the US
Dept. of Commerce, during the period 1965 to 1970 when the DoC was
given the weather bureau, named Environmental Science Services (ESSA).
It was last calibrated 9-27-72, after ESSA became NOAA.

The schematic on the cover of the cable box, inside the door, has
the schematic for "Frequency Standard TS-65C/FMQ-1" The box contains
two cables, one with a PL-259 and one with a BNC connector.

The name tag says "Type 2509-2 Ser 140" made by American Time Products
in New York, licensed under Western Electric patents. ATP made timing
chart devices for setting the correct rate for a wrist or pocket watch.
Google has nothing for ATP, but a search for "TS-65C/FMQ-1" has one by
Newton Time Products, which had negative search results.

My device works, 60 Hz reads 60.06, which is 0.1%, but the 10 and 20 Hz
ranges unaccountably have no output. Abe Books has a manual for $5.

Since I'm cleaning out, this mechanical marvel is yours for the cost
of shipping 24 pounds in a 12x12x20 box from Minneapolis 55438. It goes
on the scrap truck Thursday if no one wants old stuff, as usual.

Bill Hawkins

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

American Time Products still exists: http://www.powercontroldevices.com/about-us/ ATP has also been closely connected to Buliva, makers of the Accutron. -John ================ > Amazing, the things that can be picked out of the noise. > > I have one of these frequency standards, but it belonged to the US > Dept. of Commerce, during the period 1965 to 1970 when the DoC was > given the weather bureau, named Environmental Science Services (ESSA). > It was last calibrated 9-27-72, after ESSA became NOAA. > > The schematic on the cover of the cable box, inside the door, has > the schematic for "Frequency Standard TS-65C/FMQ-1" The box contains > two cables, one with a PL-259 and one with a BNC connector. > > The name tag says "Type 2509-2 Ser 140" made by American Time Products > in New York, licensed under Western Electric patents. ATP made timing > chart devices for setting the correct rate for a wrist or pocket watch. > Google has nothing for ATP, but a search for "TS-65C/FMQ-1" has one by > Newton Time Products, which had negative search results. > > My device works, 60 Hz reads 60.06, which is 0.1%, but the 10 and 20 Hz > ranges unaccountably have no output. Abe Books has a manual for $5. > > Since I'm cleaning out, this mechanical marvel is yours for the cost > of shipping 24 pounds in a 12x12x20 box from Minneapolis 55438. It goes > on the scrap truck Thursday if no one wants old stuff, as usual. > > Bill Hawkins > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > >

JF

J. Forster

Wed, Jan 25, 2012 5:18 AM

Self generating, therefore selenium (or possibly silicon). There is no
bias so it's not a photoconductor. I'm sure it's called out in the -24P
manual.

-John

===============

Thank you everyone for your comments, and if I've got it right Brooke, if
you paste this into your browser:

http://www.flickr.com//photos/75ohm/sets/72157629019710615/show/

you should get a quick tour and a movie!

This is indeed a tuning fork driving a synchronous motor that has a
perforated disc on its shaft. The whole unit operates as it should and the
quality of manufacture is superb, so I'm reluctant to pull it apart but I
am curious as to the type of photocell it uses. It seems very small and
the dates on many of the components suggest manufacture in the mid to late
1950s so what was around to do the job at that time? There is no cathode
bias on the "voltage amplifier" that it feeds which suggests it s
Photovoltaic rather than Photoconductive.

Thanks again for your replies,

John H.

On 24 Jan 2012, at 22:34, Brooke Clarke wrote:

Hi John:

Is there a photo of the freq std on line?

Have Fun,

Brooke Clarke
http://www.PRC68.com
http://www.end2partygovernment.com/Brooke4Congress.html

John Howell wrote:

Thanks Bob,

If it helps the switched frequencies are: 0, 10, 20, 40, 60, 80, 100,
120, 140, 160, 180, 190Hz.

John.

On 24 Jan 2012, at 22:09, Bob Camp wrote:

Hi

Sounds about right for calibrating / verifying vibrating reed
frequency
readouts.

Bob

-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com]
On
Behalf Of John Howell
Sent: Tuesday, January 24, 2012 5:00 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] US Army Frequency Standard

Hi All,

I recently obtained a curious Low Frequency Standard dating from the
late
1950s. Its output can be switched to a number of frequencies from 10
to
190Hz, derived from a tuning fork. It is marked "Signal Corps" and "US
Army"
with a type number TS-65D/FMQ-1.

Does anyone have any information about this unit, in particular what
it was
used for and why the strange negative going pulse output and specific
frequencies.

Thanks in advance,
John H.

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

Self generating, therefore selenium (or possibly silicon). There is no bias so it's not a photoconductor. I'm sure it's called out in the -24P manual. -John =============== > Thank you everyone for your comments, and if I've got it right Brooke, if > you paste this into your browser: > > http://www.flickr.com//photos/75ohm/sets/72157629019710615/show/ > > you should get a quick tour and a movie! > > This is indeed a tuning fork driving a synchronous motor that has a > perforated disc on its shaft. The whole unit operates as it should and the > quality of manufacture is superb, so I'm reluctant to pull it apart but I > am curious as to the type of photocell it uses. It seems very small and > the dates on many of the components suggest manufacture in the mid to late > 1950s so what was around to do the job at that time? There is no cathode > bias on the "voltage amplifier" that it feeds which suggests it s > Photovoltaic rather than Photoconductive. > > Thanks again for your replies, > > John H. > > > On 24 Jan 2012, at 22:34, Brooke Clarke wrote: > >> Hi John: >> >> Is there a photo of the freq std on line? >> >> Have Fun, >> >> Brooke Clarke >> http://www.PRC68.com >> http://www.end2partygovernment.com/Brooke4Congress.html >> >> >> John Howell wrote: >>> Thanks Bob, >>> >>> If it helps the switched frequencies are: 0, 10, 20, 40, 60, 80, 100, >>> 120, 140, 160, 180, 190Hz. >>> >>> John. >>> >>> On 24 Jan 2012, at 22:09, Bob Camp wrote: >>> >>>> Hi >>>> >>>> Sounds about right for calibrating / verifying vibrating reed >>>> frequency >>>> readouts. >>>> >>>> Bob >>>> >>>> -----Original Message----- >>>> From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] >>>> On >>>> Behalf Of John Howell >>>> Sent: Tuesday, January 24, 2012 5:00 PM >>>> To: Discussion of precise time and frequency measurement >>>> Subject: [time-nuts] US Army Frequency Standard >>>> >>>> Hi All, >>>> >>>> I recently obtained a curious Low Frequency Standard dating from the >>>> late >>>> 1950s. Its output can be switched to a number of frequencies from 10 >>>> to >>>> 190Hz, derived from a tuning fork. It is marked "Signal Corps" and "US >>>> Army" >>>> with a type number TS-65D/FMQ-1. >>>> >>>> >>>> Does anyone have any information about this unit, in particular what >>>> it was >>>> used for and why the strange negative going pulse output and specific >>>> frequencies. >>>> >>>> Thanks in advance, >>>> John H. >>>> >>>> _______________________________________________ >>>> time-nuts mailing list -- time-nuts@febo.com >>>> To unsubscribe, go to >>>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>>> and follow the instructions there. >>>> >>>> >>>> _______________________________________________ >>>> time-nuts mailing list -- time-nuts@febo.com >>>> To unsubscribe, go to >>>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>>> and follow the instructions there. >>> >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@febo.com >>> To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >>> >>> >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > >

DL

Don Latham

Wed, Jan 25, 2012 6:30 AM

Oh Lord, I gotta have one! It's obviously a mil-spec version of:
http://www.youtube.com/watch?v=Z86V_ICUCD4
Don
J. Forster

Self generating, therefore selenium (or possibly silicon). There is no
bias so it's not a photoconductor. I'm sure it's called out in the -24P
manual.

-John

===============

Thank you everyone for your comments, and if I've got it right Brooke,
if
you paste this into your browser:

http://www.flickr.com//photos/75ohm/sets/72157629019710615/show/

you should get a quick tour and a movie!

This is indeed a tuning fork driving a synchronous motor that has a
perforated disc on its shaft. The whole unit operates as it should and
the
quality of manufacture is superb, so I'm reluctant to pull it apart
but I
am curious as to the type of photocell it uses. It seems very small
and
the dates on many of the components suggest manufacture in the mid to
late
1950s so what was around to do the job at that time? There is no
cathode
bias on the "voltage amplifier" that it feeds which suggests it s
Photovoltaic rather than Photoconductive.

Thanks again for your replies,

John H.

On 24 Jan 2012, at 22:34, Brooke Clarke wrote:

Hi John:

Is there a photo of the freq std on line?

Have Fun,

Brooke Clarke
http://www.PRC68.com
http://www.end2partygovernment.com/Brooke4Congress.html

John Howell wrote:

Thanks Bob,

If it helps the switched frequencies are: 0, 10, 20, 40, 60, 80,
100,
120, 140, 160, 180, 190Hz.

John.

On 24 Jan 2012, at 22:09, Bob Camp wrote:

Hi

Sounds about right for calibrating / verifying vibrating reed
frequency
readouts.

Bob

-----Original Message-----
From: time-nuts-bounces@febo.com
[mailto:time-nuts-bounces@febo.com]
On
Behalf Of John Howell
Sent: Tuesday, January 24, 2012 5:00 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] US Army Frequency Standard

Hi All,

I recently obtained a curious Low Frequency Standard dating from
the
late
1950s. Its output can be switched to a number of frequencies from
10
to
190Hz, derived from a tuning fork. It is marked "Signal Corps" and
"US
Army"
with a type number TS-65D/FMQ-1.

Does anyone have any information about this unit, in particular
what
it was
used for and why the strange negative going pulse output and
specific
frequencies.

Thanks in advance,
John H.

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

--
"Neither the voice of authority nor the weight of reason and argument
are as significant as experiment, for thence comes quiet to the mind."
R. Bacon
"If you don't know what it is, don't poke it."
Ghost in the Shell

Dr. Don Latham AJ7LL
Six Mile Systems LLP
17850 Six Mile Road
POB 134
Huson, MT, 59846
VOX 406-626-4304
www.lightningforensics.com
www.sixmilesystems.com

Oh Lord, I gotta have one! It's obviously a mil-spec version of: http://www.youtube.com/watch?v=Z86V_ICUCD4 Don J. Forster > Self generating, therefore selenium (or possibly silicon). There is no > bias so it's not a photoconductor. I'm sure it's called out in the -24P > manual. > > -John > > =============== > >> Thank you everyone for your comments, and if I've got it right Brooke, >> if >> you paste this into your browser: >> >> http://www.flickr.com//photos/75ohm/sets/72157629019710615/show/ >> >> you should get a quick tour and a movie! >> >> This is indeed a tuning fork driving a synchronous motor that has a >> perforated disc on its shaft. The whole unit operates as it should and >> the >> quality of manufacture is superb, so I'm reluctant to pull it apart >> but I >> am curious as to the type of photocell it uses. It seems very small >> and >> the dates on many of the components suggest manufacture in the mid to >> late >> 1950s so what was around to do the job at that time? There is no >> cathode >> bias on the "voltage amplifier" that it feeds which suggests it s >> Photovoltaic rather than Photoconductive. >> >> Thanks again for your replies, >> >> John H. >> >> >> On 24 Jan 2012, at 22:34, Brooke Clarke wrote: >> >>> Hi John: >>> >>> Is there a photo of the freq std on line? >>> >>> Have Fun, >>> >>> Brooke Clarke >>> http://www.PRC68.com >>> http://www.end2partygovernment.com/Brooke4Congress.html >>> >>> >>> John Howell wrote: >>>> Thanks Bob, >>>> >>>> If it helps the switched frequencies are: 0, 10, 20, 40, 60, 80, >>>> 100, >>>> 120, 140, 160, 180, 190Hz. >>>> >>>> John. >>>> >>>> On 24 Jan 2012, at 22:09, Bob Camp wrote: >>>> >>>>> Hi >>>>> >>>>> Sounds about right for calibrating / verifying vibrating reed >>>>> frequency >>>>> readouts. >>>>> >>>>> Bob >>>>> >>>>> -----Original Message----- >>>>> From: time-nuts-bounces@febo.com >>>>> [mailto:time-nuts-bounces@febo.com] >>>>> On >>>>> Behalf Of John Howell >>>>> Sent: Tuesday, January 24, 2012 5:00 PM >>>>> To: Discussion of precise time and frequency measurement >>>>> Subject: [time-nuts] US Army Frequency Standard >>>>> >>>>> Hi All, >>>>> >>>>> I recently obtained a curious Low Frequency Standard dating from >>>>> the >>>>> late >>>>> 1950s. Its output can be switched to a number of frequencies from >>>>> 10 >>>>> to >>>>> 190Hz, derived from a tuning fork. It is marked "Signal Corps" and >>>>> "US >>>>> Army" >>>>> with a type number TS-65D/FMQ-1. >>>>> >>>>> >>>>> Does anyone have any information about this unit, in particular >>>>> what >>>>> it was >>>>> used for and why the strange negative going pulse output and >>>>> specific >>>>> frequencies. >>>>> >>>>> Thanks in advance, >>>>> John H. >>>>> >>>>> _______________________________________________ >>>>> time-nuts mailing list -- time-nuts@febo.com >>>>> To unsubscribe, go to >>>>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>>>> and follow the instructions there. >>>>> >>>>> >>>>> _______________________________________________ >>>>> time-nuts mailing list -- time-nuts@febo.com >>>>> To unsubscribe, go to >>>>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>>>> and follow the instructions there. >>>> >>>> _______________________________________________ >>>> time-nuts mailing list -- time-nuts@febo.com >>>> To unsubscribe, go to >>>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>>> and follow the instructions there. >>>> >>>> >>> >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@febo.com >>> To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >> >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> >> > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > -- "Neither the voice of authority nor the weight of reason and argument are as significant as experiment, for thence comes quiet to the mind." R. Bacon "If you don't know what it is, don't poke it." Ghost in the Shell Dr. Don Latham AJ7LL Six Mile Systems LLP 17850 Six Mile Road POB 134 Huson, MT, 59846 VOX 406-626-4304 www.lightningforensics.com www.sixmilesystems.com

DL

Don Latham

Wed, Jan 25, 2012 6:32 AM

And here's the manual!!!!
http://www.liberatedmanuals.com/TM-11-6625-407-24P.pdf

J. Forster

Self generating, therefore selenium (or possibly silicon). There is no
bias so it's not a photoconductor. I'm sure it's called out in the -24P
manual.

-John

===============

Thank you everyone for your comments, and if I've got it right Brooke,
if
you paste this into your browser:

http://www.flickr.com//photos/75ohm/sets/72157629019710615/show/

you should get a quick tour and a movie!

This is indeed a tuning fork driving a synchronous motor that has a
perforated disc on its shaft. The whole unit operates as it should and
the
quality of manufacture is superb, so I'm reluctant to pull it apart
but I
am curious as to the type of photocell it uses. It seems very small
and
the dates on many of the components suggest manufacture in the mid to
late
1950s so what was around to do the job at that time? There is no
cathode
bias on the "voltage amplifier" that it feeds which suggests it s
Photovoltaic rather than Photoconductive.

Thanks again for your replies,

John H.

On 24 Jan 2012, at 22:34, Brooke Clarke wrote:

Hi John:

Is there a photo of the freq std on line?

Have Fun,

Brooke Clarke
http://www.PRC68.com
http://www.end2partygovernment.com/Brooke4Congress.html

John Howell wrote:

Thanks Bob,

If it helps the switched frequencies are: 0, 10, 20, 40, 60, 80,
100,
120, 140, 160, 180, 190Hz.

John.

On 24 Jan 2012, at 22:09, Bob Camp wrote:

Hi

Sounds about right for calibrating / verifying vibrating reed
frequency
readouts.

Bob

-----Original Message-----
From: time-nuts-bounces@febo.com
[mailto:time-nuts-bounces@febo.com]
On
Behalf Of John Howell
Sent: Tuesday, January 24, 2012 5:00 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] US Army Frequency Standard

Hi All,

I recently obtained a curious Low Frequency Standard dating from
the
late
1950s. Its output can be switched to a number of frequencies from
10
to
190Hz, derived from a tuning fork. It is marked "Signal Corps" and
"US
Army"
with a type number TS-65D/FMQ-1.

Does anyone have any information about this unit, in particular
what
it was
used for and why the strange negative going pulse output and
specific
frequencies.

Thanks in advance,
John H.

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

--
"Neither the voice of authority nor the weight of reason and argument
are as significant as experiment, for thence comes quiet to the mind."
R. Bacon
"If you don't know what it is, don't poke it."
Ghost in the Shell

Dr. Don Latham AJ7LL
Six Mile Systems LLP
17850 Six Mile Road
POB 134
Huson, MT, 59846
VOX 406-626-4304
www.lightningforensics.com
www.sixmilesystems.com

And here's the manual!!!! http://www.liberatedmanuals.com/TM-11-6625-407-24P.pdf J. Forster > Self generating, therefore selenium (or possibly silicon). There is no > bias so it's not a photoconductor. I'm sure it's called out in the -24P > manual. > > -John > > =============== > >> Thank you everyone for your comments, and if I've got it right Brooke, >> if >> you paste this into your browser: >> >> http://www.flickr.com//photos/75ohm/sets/72157629019710615/show/ >> >> you should get a quick tour and a movie! >> >> This is indeed a tuning fork driving a synchronous motor that has a >> perforated disc on its shaft. The whole unit operates as it should and >> the >> quality of manufacture is superb, so I'm reluctant to pull it apart >> but I >> am curious as to the type of photocell it uses. It seems very small >> and >> the dates on many of the components suggest manufacture in the mid to >> late >> 1950s so what was around to do the job at that time? There is no >> cathode >> bias on the "voltage amplifier" that it feeds which suggests it s >> Photovoltaic rather than Photoconductive. >> >> Thanks again for your replies, >> >> John H. >> >> >> On 24 Jan 2012, at 22:34, Brooke Clarke wrote: >> >>> Hi John: >>> >>> Is there a photo of the freq std on line? >>> >>> Have Fun, >>> >>> Brooke Clarke >>> http://www.PRC68.com >>> http://www.end2partygovernment.com/Brooke4Congress.html >>> >>> >>> John Howell wrote: >>>> Thanks Bob, >>>> >>>> If it helps the switched frequencies are: 0, 10, 20, 40, 60, 80, >>>> 100, >>>> 120, 140, 160, 180, 190Hz. >>>> >>>> John. >>>> >>>> On 24 Jan 2012, at 22:09, Bob Camp wrote: >>>> >>>>> Hi >>>>> >>>>> Sounds about right for calibrating / verifying vibrating reed >>>>> frequency >>>>> readouts. >>>>> >>>>> Bob >>>>> >>>>> -----Original Message----- >>>>> From: time-nuts-bounces@febo.com >>>>> [mailto:time-nuts-bounces@febo.com] >>>>> On >>>>> Behalf Of John Howell >>>>> Sent: Tuesday, January 24, 2012 5:00 PM >>>>> To: Discussion of precise time and frequency measurement >>>>> Subject: [time-nuts] US Army Frequency Standard >>>>> >>>>> Hi All, >>>>> >>>>> I recently obtained a curious Low Frequency Standard dating from >>>>> the >>>>> late >>>>> 1950s. Its output can be switched to a number of frequencies from >>>>> 10 >>>>> to >>>>> 190Hz, derived from a tuning fork. It is marked "Signal Corps" and >>>>> "US >>>>> Army" >>>>> with a type number TS-65D/FMQ-1. >>>>> >>>>> >>>>> Does anyone have any information about this unit, in particular >>>>> what >>>>> it was >>>>> used for and why the strange negative going pulse output and >>>>> specific >>>>> frequencies. >>>>> >>>>> Thanks in advance, >>>>> John H. >>>>> >>>>> _______________________________________________ >>>>> time-nuts mailing list -- time-nuts@febo.com >>>>> To unsubscribe, go to >>>>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>>>> and follow the instructions there. >>>>> >>>>> >>>>> _______________________________________________ >>>>> time-nuts mailing list -- time-nuts@febo.com >>>>> To unsubscribe, go to >>>>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>>>> and follow the instructions there. >>>> >>>> _______________________________________________ >>>> time-nuts mailing list -- time-nuts@febo.com >>>> To unsubscribe, go to >>>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>>> and follow the instructions there. >>>> >>>> >>> >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@febo.com >>> To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >> >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> >> > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > -- "Neither the voice of authority nor the weight of reason and argument are as significant as experiment, for thence comes quiet to the mind." R. Bacon "If you don't know what it is, don't poke it." Ghost in the Shell Dr. Don Latham AJ7LL Six Mile Systems LLP 17850 Six Mile Road POB 134 Huson, MT, 59846 VOX 406-626-4304 www.lightningforensics.com www.sixmilesystems.com

DL

Don Latham

Wed, Jan 25, 2012 6:41 AM

It's for calibrating a radiosonde recorder.

J. Forster

American Time Products still exists:

http://www.powercontroldevices.com/about-us/

ATP has also been closely connected to Buliva, makers of the Accutron.

-John

================

Amazing, the things that can be picked out of the noise.

I have one of these frequency standards, but it belonged to the US
Dept. of Commerce, during the period 1965 to 1970 when the DoC was
given the weather bureau, named Environmental Science Services (ESSA).
It was last calibrated 9-27-72, after ESSA became NOAA.

The schematic on the cover of the cable box, inside the door, has
the schematic for "Frequency Standard TS-65C/FMQ-1" The box contains
two cables, one with a PL-259 and one with a BNC connector.

The name tag says "Type 2509-2 Ser 140" made by American Time Products
in New York, licensed under Western Electric patents. ATP made timing
chart devices for setting the correct rate for a wrist or pocket
watch.
Google has nothing for ATP, but a search for "TS-65C/FMQ-1" has one by
Newton Time Products, which had negative search results.

My device works, 60 Hz reads 60.06, which is 0.1%, but the 10 and 20
Hz
ranges unaccountably have no output. Abe Books has a manual for $5.

Since I'm cleaning out, this mechanical marvel is yours for the cost
of shipping 24 pounds in a 12x12x20 box from Minneapolis 55438. It
goes
on the scrap truck Thursday if no one wants old stuff, as usual.

Bill Hawkins

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

--
"Neither the voice of authority nor the weight of reason and argument
are as significant as experiment, for thence comes quiet to the mind."
R. Bacon
"If you don't know what it is, don't poke it."
Ghost in the Shell

Dr. Don Latham AJ7LL
Six Mile Systems LLP
17850 Six Mile Road
POB 134
Huson, MT, 59846
VOX 406-626-4304
www.lightningforensics.com
www.sixmilesystems.com

It's for calibrating a radiosonde recorder. J. Forster > American Time Products still exists: > > http://www.powercontroldevices.com/about-us/ > > ATP has also been closely connected to Buliva, makers of the Accutron. > > -John > > ================ > > > >> Amazing, the things that can be picked out of the noise. >> >> I have one of these frequency standards, but it belonged to the US >> Dept. of Commerce, during the period 1965 to 1970 when the DoC was >> given the weather bureau, named Environmental Science Services (ESSA). >> It was last calibrated 9-27-72, after ESSA became NOAA. >> >> The schematic on the cover of the cable box, inside the door, has >> the schematic for "Frequency Standard TS-65C/FMQ-1" The box contains >> two cables, one with a PL-259 and one with a BNC connector. >> >> The name tag says "Type 2509-2 Ser 140" made by American Time Products >> in New York, licensed under Western Electric patents. ATP made timing >> chart devices for setting the correct rate for a wrist or pocket >> watch. >> Google has nothing for ATP, but a search for "TS-65C/FMQ-1" has one by >> Newton Time Products, which had negative search results. >> >> My device works, 60 Hz reads 60.06, which is 0.1%, but the 10 and 20 >> Hz >> ranges unaccountably have no output. Abe Books has a manual for $5. >> >> Since I'm cleaning out, this mechanical marvel is yours for the cost >> of shipping 24 pounds in a 12x12x20 box from Minneapolis 55438. It >> goes >> on the scrap truck Thursday if no one wants old stuff, as usual. >> >> Bill Hawkins >> >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> >> > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > -- "Neither the voice of authority nor the weight of reason and argument are as significant as experiment, for thence comes quiet to the mind." R. Bacon "If you don't know what it is, don't poke it." Ghost in the Shell Dr. Don Latham AJ7LL Six Mile Systems LLP 17850 Six Mile Road POB 134 Huson, MT, 59846 VOX 406-626-4304 www.lightningforensics.com www.sixmilesystems.com

DL

Don Latham

Wed, Jan 25, 2012 6:44 AM

And the op manual is at:
http://books.google.com/books?id=Hoc-AAAAYAAJ&printsec=frontcover&source=gbs_ge_summary_r&cad=0#v=onepage&q&f=false
J. Forster

American Time Products still exists:

http://www.powercontroldevices.com/about-us/

ATP has also been closely connected to Buliva, makers of the Accutron.

-John

================

Amazing, the things that can be picked out of the noise.

I have one of these frequency standards, but it belonged to the US
Dept. of Commerce, during the period 1965 to 1970 when the DoC was
given the weather bureau, named Environmental Science Services (ESSA).
It was last calibrated 9-27-72, after ESSA became NOAA.

The schematic on the cover of the cable box, inside the door, has
the schematic for "Frequency Standard TS-65C/FMQ-1" The box contains
two cables, one with a PL-259 and one with a BNC connector.

The name tag says "Type 2509-2 Ser 140" made by American Time Products
in New York, licensed under Western Electric patents. ATP made timing
chart devices for setting the correct rate for a wrist or pocket
watch.
Google has nothing for ATP, but a search for "TS-65C/FMQ-1" has one by
Newton Time Products, which had negative search results.

My device works, 60 Hz reads 60.06, which is 0.1%, but the 10 and 20
Hz
ranges unaccountably have no output. Abe Books has a manual for $5.

Since I'm cleaning out, this mechanical marvel is yours for the cost
of shipping 24 pounds in a 12x12x20 box from Minneapolis 55438. It
goes
on the scrap truck Thursday if no one wants old stuff, as usual.

Bill Hawkins

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

--
"Neither the voice of authority nor the weight of reason and argument
are as significant as experiment, for thence comes quiet to the mind."
R. Bacon
"If you don't know what it is, don't poke it."
Ghost in the Shell

Dr. Don Latham AJ7LL
Six Mile Systems LLP
17850 Six Mile Road
POB 134
Huson, MT, 59846
VOX 406-626-4304
www.lightningforensics.com
www.sixmilesystems.com

And the op manual is at: http://books.google.com/books?id=Hoc-AAAAYAAJ&printsec=frontcover&source=gbs_ge_summary_r&cad=0#v=onepage&q&f=false J. Forster > American Time Products still exists: > > http://www.powercontroldevices.com/about-us/ > > ATP has also been closely connected to Buliva, makers of the Accutron. > > -John > > ================ > > > >> Amazing, the things that can be picked out of the noise. >> >> I have one of these frequency standards, but it belonged to the US >> Dept. of Commerce, during the period 1965 to 1970 when the DoC was >> given the weather bureau, named Environmental Science Services (ESSA). >> It was last calibrated 9-27-72, after ESSA became NOAA. >> >> The schematic on the cover of the cable box, inside the door, has >> the schematic for "Frequency Standard TS-65C/FMQ-1" The box contains >> two cables, one with a PL-259 and one with a BNC connector. >> >> The name tag says "Type 2509-2 Ser 140" made by American Time Products >> in New York, licensed under Western Electric patents. ATP made timing >> chart devices for setting the correct rate for a wrist or pocket >> watch. >> Google has nothing for ATP, but a search for "TS-65C/FMQ-1" has one by >> Newton Time Products, which had negative search results. >> >> My device works, 60 Hz reads 60.06, which is 0.1%, but the 10 and 20 >> Hz >> ranges unaccountably have no output. Abe Books has a manual for $5. >> >> Since I'm cleaning out, this mechanical marvel is yours for the cost >> of shipping 24 pounds in a 12x12x20 box from Minneapolis 55438. It >> goes >> on the scrap truck Thursday if no one wants old stuff, as usual. >> >> Bill Hawkins >> >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> >> > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > -- "Neither the voice of authority nor the weight of reason and argument are as significant as experiment, for thence comes quiet to the mind." R. Bacon "If you don't know what it is, don't poke it." Ghost in the Shell Dr. Don Latham AJ7LL Six Mile Systems LLP 17850 Six Mile Road POB 134 Huson, MT, 59846 VOX 406-626-4304 www.lightningforensics.com www.sixmilesystems.com

JH

John Howell

Wed, Jan 25, 2012 1:36 PM

It appears to be a "Bradley Lab #6A", Alan Bradley is now part of Rockwell Automation.

John.

O,n 25 Jan 2012, at 05:18, J. Forster wrote:

Self generating, therefore selenium (or possibly silicon). There is no
bias so it's not a photoconductor. I'm sure it's called out in the -24P
manual.

-John

===============

Thank you everyone for your comments, and if I've got it right Brooke, if
you paste this into your browser:

http://www.flickr.com//photos/75ohm/sets/72157629019710615/show/

you should get a quick tour and a movie!

This is indeed a tuning fork driving a synchronous motor that has a
perforated disc on its shaft. The whole unit operates as it should and the
quality of manufacture is superb, so I'm reluctant to pull it apart but I
am curious as to the type of photocell it uses. It seems very small and
the dates on many of the components suggest manufacture in the mid to late
1950s so what was around to do the job at that time? There is no cathode
bias on the "voltage amplifier" that it feeds which suggests it s
Photovoltaic rather than Photoconductive.

Thanks again for your replies,

John H.

On 24 Jan 2012, at 22:34, Brooke Clarke wrote:

Hi John:

Is there a photo of the freq std on line?

Have Fun,

Brooke Clarke
http://www.PRC68.com
http://www.end2partygovernment.com/Brooke4Congress.html

John Howell wrote:

Thanks Bob,

If it helps the switched frequencies are: 0, 10, 20, 40, 60, 80, 100,
120, 140, 160, 180, 190Hz.

John.

On 24 Jan 2012, at 22:09, Bob Camp wrote:

Hi

Sounds about right for calibrating / verifying vibrating reed
frequency
readouts.

Bob

-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com]
On
Behalf Of John Howell
Sent: Tuesday, January 24, 2012 5:00 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] US Army Frequency Standard

Hi All,

I recently obtained a curious Low Frequency Standard dating from the
late
1950s. Its output can be switched to a number of frequencies from 10
to
190Hz, derived from a tuning fork. It is marked "Signal Corps" and "US
Army"
with a type number TS-65D/FMQ-1.

Does anyone have any information about this unit, in particular what
it was
used for and why the strange negative going pulse output and specific
frequencies.

Thanks in advance,
John H.

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

It appears to be a "Bradley Lab #6A", Alan Bradley is now part of Rockwell Automation. John. O,n 25 Jan 2012, at 05:18, J. Forster wrote: > Self generating, therefore selenium (or possibly silicon). There is no > bias so it's not a photoconductor. I'm sure it's called out in the -24P > manual. > > -John > > =============== > >> Thank you everyone for your comments, and if I've got it right Brooke, if >> you paste this into your browser: >> >> http://www.flickr.com//photos/75ohm/sets/72157629019710615/show/ >> >> you should get a quick tour and a movie! >> >> This is indeed a tuning fork driving a synchronous motor that has a >> perforated disc on its shaft. The whole unit operates as it should and the >> quality of manufacture is superb, so I'm reluctant to pull it apart but I >> am curious as to the type of photocell it uses. It seems very small and >> the dates on many of the components suggest manufacture in the mid to late >> 1950s so what was around to do the job at that time? There is no cathode >> bias on the "voltage amplifier" that it feeds which suggests it s >> Photovoltaic rather than Photoconductive. >> >> Thanks again for your replies, >> >> John H. >> >> >> On 24 Jan 2012, at 22:34, Brooke Clarke wrote: >> >>> Hi John: >>> >>> Is there a photo of the freq std on line? >>> >>> Have Fun, >>> >>> Brooke Clarke >>> http://www.PRC68.com >>> http://www.end2partygovernment.com/Brooke4Congress.html >>> >>> >>> John Howell wrote: >>>> Thanks Bob, >>>> >>>> If it helps the switched frequencies are: 0, 10, 20, 40, 60, 80, 100, >>>> 120, 140, 160, 180, 190Hz. >>>> >>>> John. >>>> >>>> On 24 Jan 2012, at 22:09, Bob Camp wrote: >>>> >>>>> Hi >>>>> >>>>> Sounds about right for calibrating / verifying vibrating reed >>>>> frequency >>>>> readouts. >>>>> >>>>> Bob >>>>> >>>>> -----Original Message----- >>>>> From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] >>>>> On >>>>> Behalf Of John Howell >>>>> Sent: Tuesday, January 24, 2012 5:00 PM >>>>> To: Discussion of precise time and frequency measurement >>>>> Subject: [time-nuts] US Army Frequency Standard >>>>> >>>>> Hi All, >>>>> >>>>> I recently obtained a curious Low Frequency Standard dating from the >>>>> late >>>>> 1950s. Its output can be switched to a number of frequencies from 10 >>>>> to >>>>> 190Hz, derived from a tuning fork. It is marked "Signal Corps" and "US >>>>> Army" >>>>> with a type number TS-65D/FMQ-1. >>>>> >>>>> >>>>> Does anyone have any information about this unit, in particular what >>>>> it was >>>>> used for and why the strange negative going pulse output and specific >>>>> frequencies. >>>>> >>>>> Thanks in advance, >>>>> John H. >>>>> >>>>> _______________________________________________ >>>>> time-nuts mailing list -- time-nuts@febo.com >>>>> To unsubscribe, go to >>>>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>>>> and follow the instructions there. >>>>> >>>>> >>>>> _______________________________________________ >>>>> time-nuts mailing list -- time-nuts@febo.com >>>>> To unsubscribe, go to >>>>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>>>> and follow the instructions there. >>>> >>>> _______________________________________________ >>>> time-nuts mailing list -- time-nuts@febo.com >>>> To unsubscribe, go to >>>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>>> and follow the instructions there. >>>> >>>> >>> >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@febo.com >>> To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >> >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> >> > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there.

Z

Ziggy

Thu, Jan 26, 2012 2:48 AM

Well, it's still probably better than nothing, even with the missing bits. It's kind of an interesting little box and the lack of a completely unencumbered version of this manual really annoyed me. So I've posted a complete PDF version on my website for those interested. It's a little hefty at 18M. The link is:

http://www.pumpkinbrook.com/files/TS65-FMQ1_Manual.pdf

Ziggy

On Jan 24, 2012, at 7:09 PM, J. Forster wrote:

Ah, thanks.

I have complained to Google about that scanning issue. IMO, it's a real
problem.

In a few years, Google may have the only extant copy of some doc.

And it will be near useless w/o the fully scanned pages. This is the third
time this has come up in the last few months.

Either they should do it correctly, or not at all.

YMMV,

-John

=================

On 01/24/2012 11:59 PM, J. Forster wrote:

Google:

"FMQ-1" Test Set

The -24P Parts Manual w/ exploded parts ID is in many places and has a
drawing of the front panel. It has no schematics.

The full manual will be -15 to -45 Depot Maintenance Manual, per
standard
Army nomenclature. The last digit will be 5, without a following P.

Google has TM 11-6625-407-14 scanned.

The fold-out schematic pages isn't folded out... but you get a pretty
good idea how it works from the rest of the text.

The schematics is there fractioned over the pages explaining it.

Cheers,
Magnus

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

Well, it's still probably better than nothing, even with the missing bits. It's kind of an interesting little box and the lack of a completely unencumbered version of this manual really annoyed me. So I've posted a complete PDF version on my website for those interested. It's a little hefty at 18M. The link is: http://www.pumpkinbrook.com/files/TS65-FMQ1_Manual.pdf Ziggy On Jan 24, 2012, at 7:09 PM, J. Forster wrote: Ah, thanks. I have complained to Google about that scanning issue. IMO, it's a real problem. In a few years, Google may have the only extant copy of some doc. And it will be near useless w/o the fully scanned pages. This is the third time this has come up in the last few months. Either they should do it correctly, or not at all. YMMV, -John ================= > On 01/24/2012 11:59 PM, J. Forster wrote: >> Google: >> >> "FMQ-1" Test Set >> >> The -24P Parts Manual w/ exploded parts ID is in many places and has a >> drawing of the front panel. It has no schematics. >> >> The full manual will be -15 to -45 Depot Maintenance Manual, per >> standard >> Army nomenclature. The last digit will be 5, without a following P. > > Google has TM 11-6625-407-14 scanned. > > The fold-out schematic pages isn't folded out... but you get a pretty > good idea how it works from the rest of the text. > > The schematics is there fractioned over the pages explaining it. > > Cheers, > Magnus > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.

time-nuts@lists.febo.com

US Army Frequency Standard