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Discussion of precise time and frequency measurement

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General Radio frequency standard question

TV
Tom Van Baak
Tue, Nov 3, 2015 8:00 PM

Some of you know I spend as much time looking backward as looking forward: both ends of the precision time envelope are extremely interesting -- from chronometers and tuning forks -- to cesium clocks and masers.

In particular I trying to restore and power up several old NL (Norrman Laboratories) and GR (General Radio) pre-quartz frequency standards/clocks from the 1930's. Can someone tell me if there's an active GenRad user group, web-forum, or mailing list on the web? In spite of a heavy shelf of General Radio Experimenter magazines, GR catalogs and GR manuals, I could use some help.

Replies on- or off-list are ok.

For those of you new to the 20th century history of time & frequency see mouth-watering specimens like:
http://leapsecond.com/museum/gr1103a/
http://leapsecond.com/museum/gr1190a/
http://leapsecond.com/museum/gr676b-50kc/
http://leapsecond.com/museum/gr815b/
http://leapsecond.com/pages/old-genrad/

Thanks,
/tvb

Some of you know I spend as much time looking backward as looking forward: both ends of the precision time envelope are extremely interesting -- from chronometers and tuning forks -- to cesium clocks and masers. In particular I trying to restore and power up several old NL (Norrman Laboratories) and GR (General Radio) pre-quartz frequency standards/clocks from the 1930's. Can someone tell me if there's an active GenRad user group, web-forum, or mailing list on the web? In spite of a heavy shelf of General Radio Experimenter magazines, GR catalogs and GR manuals, I could use some help. Replies on- or off-list are ok. For those of you new to the 20th century history of time & frequency see mouth-watering specimens like: http://leapsecond.com/museum/gr1103a/ http://leapsecond.com/museum/gr1190a/ http://leapsecond.com/museum/gr676b-50kc/ http://leapsecond.com/museum/gr815b/ http://leapsecond.com/pages/old-genrad/ Thanks, /tvb
PL
Pete Lancashire
Tue, Nov 3, 2015 8:24 PM

There is a GR group on Yahoo but its pretty quiet.

I joined when I started restoring one of the GR early synthesizers a 1161A,
the a 1115A
oscillator (the one where the dewer got destroyed in shipping).

I have one of the tuning fork units, it is in very bad condition but cost
me $1 at a
swap meet.

-pete

On Tue, Nov 3, 2015 at 12:00 PM, Tom Van Baak tvb@leapsecond.com wrote:

Some of you know I spend as much time looking backward as looking forward:
both ends of the precision time envelope are extremely interesting -- from
chronometers and tuning forks -- to cesium clocks and masers.

In particular I trying to restore and power up several old NL (Norrman
Laboratories) and GR (General Radio) pre-quartz frequency standards/clocks
from the 1930's. Can someone tell me if there's an active GenRad user
group, web-forum, or mailing list on the web? In spite of a heavy shelf of
General Radio Experimenter magazines, GR catalogs and GR manuals, I could
use some help.

Replies on- or off-list are ok.

For those of you new to the 20th century history of time & frequency see
mouth-watering specimens like:
http://leapsecond.com/museum/gr1103a/
http://leapsecond.com/museum/gr1190a/
http://leapsecond.com/museum/gr676b-50kc/
http://leapsecond.com/museum/gr815b/
http://leapsecond.com/pages/old-genrad/

Thanks,
/tvb

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.

There is a GR group on Yahoo but its pretty quiet. I joined when I started restoring one of the GR early synthesizers a 1161A, the a 1115A oscillator (the one where the dewer got destroyed in shipping). I have one of the tuning fork units, it is in very bad condition but cost me $1 at a swap meet. -pete On Tue, Nov 3, 2015 at 12:00 PM, Tom Van Baak <tvb@leapsecond.com> wrote: > Some of you know I spend as much time looking backward as looking forward: > both ends of the precision time envelope are extremely interesting -- from > chronometers and tuning forks -- to cesium clocks and masers. > > In particular I trying to restore and power up several old NL (Norrman > Laboratories) and GR (General Radio) pre-quartz frequency standards/clocks > from the 1930's. Can someone tell me if there's an active GenRad user > group, web-forum, or mailing list on the web? In spite of a heavy shelf of > General Radio Experimenter magazines, GR catalogs and GR manuals, I could > use some help. > > Replies on- or off-list are ok. > > For those of you new to the 20th century history of time & frequency see > mouth-watering specimens like: > http://leapsecond.com/museum/gr1103a/ > http://leapsecond.com/museum/gr1190a/ > http://leapsecond.com/museum/gr676b-50kc/ > http://leapsecond.com/museum/gr815b/ > http://leapsecond.com/pages/old-genrad/ > > Thanks, > /tvb > > _______________________________________________ > 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. >
DB
Dave Brown
Tue, Nov 3, 2015 8:29 PM

Tom
There's some activity here-
http://groups.yahoo.com/group/GenRad/

I have a GR 1123A not fully restored yet. Performance of that 815B looks
impressive!
DaveB, NZ

----- Original Message -----
From: "Tom Van Baak" tvb@LeapSecond.com
To: "Discussion of precise time and frequency measurement"
time-nuts@febo.com
Sent: Wednesday, November 04, 2015 9:00 AM
Subject: [time-nuts] General Radio frequency standard question

Some of you know I spend as much time looking backward as looking forward:
both ends of the precision time envelope are extremely interesting -- from
chronometers and tuning forks -- to cesium clocks and masers.

In particular I trying to restore and power up several old NL (Norrman
Laboratories) and GR (General Radio) pre-quartz frequency standards/clocks
from the 1930's. Can someone tell me if there's an active GenRad user
group, web-forum, or mailing list on the web? In spite of a heavy shelf of
General Radio Experimenter magazines, GR catalogs and GR manuals, I could
use some help.

Replies on- or off-list are ok.

For those of you new to the 20th century history of time & frequency see
mouth-watering specimens like:
http://leapsecond.com/museum/gr1103a/
http://leapsecond.com/museum/gr1190a/
http://leapsecond.com/museum/gr676b-50kc/
http://leapsecond.com/museum/gr815b/
http://leapsecond.com/pages/old-genrad/

Thanks,
/tvb

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.

Tom There's some activity here- http://groups.yahoo.com/group/GenRad/ I have a GR 1123A not fully restored yet. Performance of that 815B looks impressive! DaveB, NZ ----- Original Message ----- From: "Tom Van Baak" <tvb@LeapSecond.com> To: "Discussion of precise time and frequency measurement" <time-nuts@febo.com> Sent: Wednesday, November 04, 2015 9:00 AM Subject: [time-nuts] General Radio frequency standard question > Some of you know I spend as much time looking backward as looking forward: > both ends of the precision time envelope are extremely interesting -- from > chronometers and tuning forks -- to cesium clocks and masers. > > In particular I trying to restore and power up several old NL (Norrman > Laboratories) and GR (General Radio) pre-quartz frequency standards/clocks > from the 1930's. Can someone tell me if there's an active GenRad user > group, web-forum, or mailing list on the web? In spite of a heavy shelf of > General Radio Experimenter magazines, GR catalogs and GR manuals, I could > use some help. > > Replies on- or off-list are ok. > > For those of you new to the 20th century history of time & frequency see > mouth-watering specimens like: > http://leapsecond.com/museum/gr1103a/ > http://leapsecond.com/museum/gr1190a/ > http://leapsecond.com/museum/gr676b-50kc/ > http://leapsecond.com/museum/gr815b/ > http://leapsecond.com/pages/old-genrad/ > > Thanks, > /tvb > > _______________________________________________ > 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, Nov 3, 2015 8:32 PM

Some of you know I spend as much time looking backward as looking forward: both ends of the precision time envelope are extremely interesting -- from chronometers and tuning forks -- to cesium clocks and masers.

In particular I trying to restore and power up several old NL (Norrman Laboratories) and GR (General Radio) pre-quartz frequency standards/clocks from the 1930's. Can someone tell me if there's an active GenRad user group, web-forum, or mailing list on the web? In spite of a heavy shelf of General Radio Experimenter magazines, GR catalogs and GR manuals, I could use some help.

Replies on- or off-list are ok.

For those of you new to the 20th century history of time & frequency see mouth-watering specimens like:
http://leapsecond.com/museum/gr1103a/
http://leapsecond.com/museum/gr1190a/
http://leapsecond.com/museum/gr676b-50kc/
http://leapsecond.com/museum/gr815b/
http://leapsecond.com/pages/old-genrad/

Thanks,
/tvb

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 Tom: https://groups.yahoo.com/neo/groups/GenRad/info http://www.prc68.com/I/GR650A.shtml & 1650 http://www.prc68.com/I/GRsound.shtml https://www.google.com/search?num=50&safe=off&hl=en&biw=1102&bih=727&tbm=pts&q=inassignee%3A%22Gen+Radio%22&oq=inassignee%3A%22Gen+Radio%22&gs_l=serp.12...5687.6294.0.9069.3.3.0.0.0.0.138.344.1j2.3.0....0...1c.1.64.serp..3.0.0.Y7GFfmyMqGk Mail_Attachment -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Tom Van Baak wrote: > Some of you know I spend as much time looking backward as looking forward: both ends of the precision time envelope are extremely interesting -- from chronometers and tuning forks -- to cesium clocks and masers. > > In particular I trying to restore and power up several old NL (Norrman Laboratories) and GR (General Radio) pre-quartz frequency standards/clocks from the 1930's. Can someone tell me if there's an active GenRad user group, web-forum, or mailing list on the web? In spite of a heavy shelf of General Radio Experimenter magazines, GR catalogs and GR manuals, I could use some help. > > Replies on- or off-list are ok. > > For those of you new to the 20th century history of time & frequency see mouth-watering specimens like: > http://leapsecond.com/museum/gr1103a/ > http://leapsecond.com/museum/gr1190a/ > http://leapsecond.com/museum/gr676b-50kc/ > http://leapsecond.com/museum/gr815b/ > http://leapsecond.com/pages/old-genrad/ > > Thanks, > /tvb > > _______________________________________________ > 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. >
PS
paul swed
Wed, Nov 4, 2015 2:26 PM

Hello to the group.
I have to say I keep coming back to these pictures of the syncronometer.
Wow did it arrive in that clean condition? If not how did you restore it? I
mean it appears evenin the hard to get to corners there is no grime build
up.
Regards
Paul
WB8TSL

On Tue, Nov 3, 2015 at 3:32 PM, Brooke Clarke brooke@pacific.net wrote:

Some of you know I spend as much time looking backward as looking
forward: both ends of the precision time envelope are extremely interesting
-- from chronometers and tuning forks -- to cesium clocks and masers.

In particular I trying to restore and power up several old NL (Norrman
Laboratories) and GR (General Radio) pre-quartz frequency standards/clocks
from the 1930's. Can someone tell me if there's an active GenRad user
group, web-forum, or mailing list on the web? In spite of a heavy shelf of
General Radio Experimenter magazines, GR catalogs and GR manuals, I could
use some help.

Replies on- or off-list are ok.

For those of you new to the 20th century history of time & frequency see
mouth-watering specimens like:
http://leapsecond.com/museum/gr1103a/
http://leapsecond.com/museum/gr1190a/
http://leapsecond.com/museum/gr676b-50kc/
http://leapsecond.com/museum/gr815b/
http://leapsecond.com/pages/old-genrad/

Thanks,
/tvb

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.

Hello to the group. I have to say I keep coming back to these pictures of the syncronometer. Wow did it arrive in that clean condition? If not how did you restore it? I mean it appears evenin the hard to get to corners there is no grime build up. Regards Paul WB8TSL On Tue, Nov 3, 2015 at 3:32 PM, Brooke Clarke <brooke@pacific.net> wrote: > Hi Tom: > > https://groups.yahoo.com/neo/groups/GenRad/info > > http://www.prc68.com/I/GR650A.shtml & 1650 > http://www.prc68.com/I/GRsound.shtml > > > https://www.google.com/search?num=50&safe=off&hl=en&biw=1102&bih=727&tbm=pts&q=inassignee%3A%22Gen+Radio%22&oq=inassignee%3A%22Gen+Radio%22&gs_l=serp.12...5687.6294.0.9069.3.3.0.0.0.0.138.344.1j2.3.0....0...1c.1.64.serp..3.0.0.Y7GFfmyMqGk > Mail_Attachment -- > Have Fun, > > Brooke Clarke > http://www.PRC68.com > http://www.end2partygovernment.com/2012Issues.html > http://www.prc68.com/I/DietNutrition.html > > Tom Van Baak wrote: > >> Some of you know I spend as much time looking backward as looking >> forward: both ends of the precision time envelope are extremely interesting >> -- from chronometers and tuning forks -- to cesium clocks and masers. >> >> In particular I trying to restore and power up several old NL (Norrman >> Laboratories) and GR (General Radio) pre-quartz frequency standards/clocks >> from the 1930's. Can someone tell me if there's an active GenRad user >> group, web-forum, or mailing list on the web? In spite of a heavy shelf of >> General Radio Experimenter magazines, GR catalogs and GR manuals, I could >> use some help. >> >> Replies on- or off-list are ok. >> >> For those of you new to the 20th century history of time & frequency see >> mouth-watering specimens like: >> http://leapsecond.com/museum/gr1103a/ >> http://leapsecond.com/museum/gr1190a/ >> http://leapsecond.com/museum/gr676b-50kc/ >> http://leapsecond.com/museum/gr815b/ >> http://leapsecond.com/pages/old-genrad/ >> >> Thanks, >> /tvb >> >> _______________________________________________ >> 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. >
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