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Discussion of precise time and frequency measurement

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Efratom MRT schematic

CD
Corby Dawson
Fri, Oct 31, 2008 9:07 PM

Hi,

I'm working on an Efratom MRT rubidium standard and I need the power
supply schematic.

Everything is working OK except the battery charge circuit is not
working.

With good batteries you can pull the AC cord and it runs on the batteries
OK, but then when you plug the AC back in the charge current (with very
discharged batteries) is very low. The batteries charge fine if a bench
supply is used instead of the MRT supply.

Anyone have a copy of the manual or can supply the schematic of the power
supply and charger?

Thanks,

Corby Dawson


Criminal Lawyers - Click here.
http://thirdpartyoffers.juno.com/TGL2141/fc/Ioyw6i3oGdgUSMCXb8nALpcWDYwVWGvlod18EcSO0mdpEPQlyYZoHX/

Hi, I'm working on an Efratom MRT rubidium standard and I need the power supply schematic. Everything is working OK except the battery charge circuit is not working. With good batteries you can pull the AC cord and it runs on the batteries OK, but then when you plug the AC back in the charge current (with very discharged batteries) is very low. The batteries charge fine if a bench supply is used instead of the MRT supply. Anyone have a copy of the manual or can supply the schematic of the power supply and charger? Thanks, Corby Dawson ____________________________________________________________ Criminal Lawyers - Click here. http://thirdpartyoffers.juno.com/TGL2141/fc/Ioyw6i3oGdgUSMCXb8nALpcWDYwVWGvlod18EcSO0mdpEPQlyYZoHX/
T
tomknox@nist.gov
Sat, Nov 1, 2008 10:29 PM

Hi Time-Nuts
I am new to this group, but have been aware of Time-Nuts for years.
Someone may already have done this, but if not we should host a data
base of manuals and notes for time and freq products and perhaps data
on different products members have characterized. I would be willing
to share any manuals I have and pitch in a little towards a hosting
site to build on what is already an invaluable resource.
Best Wishes;
Thomas Knox
NIST
4475 Whitney Place
Boulder Colorado 80305
1-303-554-0307
tomknox@nist.gov

Quoting "Corby Dawson" cdelect@juno.com:

Hi,

I'm working on an Efratom MRT rubidium standard and I need the power
supply schematic.

Everything is working OK except the battery charge circuit is not
working.

With good batteries you can pull the AC cord and it runs on the batteries
OK, but then when you plug the AC back in the charge current (with very
discharged batteries) is very low. The batteries charge fine if a bench
supply is used instead of the MRT supply.

Anyone have a copy of the manual or can supply the schematic of the power
supply and charger?

Thanks,

Corby Dawson


Criminal Lawyers - Click here.
http://thirdpartyoffers.juno.com/TGL2141/fc/Ioyw6i3oGdgUSMCXb8nALpcWDYwVWGvlod18EcSO0mdpEPQlyYZoHX/


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 Time-Nuts I am new to this group, but have been aware of Time-Nuts for years. Someone may already have done this, but if not we should host a data base of manuals and notes for time and freq products and perhaps data on different products members have characterized. I would be willing to share any manuals I have and pitch in a little towards a hosting site to build on what is already an invaluable resource. Best Wishes; Thomas Knox NIST 4475 Whitney Place Boulder Colorado 80305 1-303-554-0307 tomknox@nist.gov Quoting "Corby Dawson" <cdelect@juno.com>: > Hi, > > I'm working on an Efratom MRT rubidium standard and I need the power > supply schematic. > > Everything is working OK except the battery charge circuit is not > working. > > With good batteries you can pull the AC cord and it runs on the batteries > OK, but then when you plug the AC back in the charge current (with very > discharged batteries) is very low. The batteries charge fine if a bench > supply is used instead of the MRT supply. > > Anyone have a copy of the manual or can supply the schematic of the power > supply and charger? > > Thanks, > > Corby Dawson > ____________________________________________________________ > Criminal Lawyers - Click here. > http://thirdpartyoffers.juno.com/TGL2141/fc/Ioyw6i3oGdgUSMCXb8nALpcWDYwVWGvlod18EcSO0mdpEPQlyYZoHX/ > > _______________________________________________ > 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. >
BG
Bruce Griffiths
Sat, Nov 1, 2008 11:02 PM

Hi Time-Nuts
I am new to this group, but have been aware of Time-Nuts for years.
Someone may already have done this, but if not we should host a data
base of manuals and notes for time and freq products and perhaps data
on different products members have characterized. I would be willing
to share any manuals I have and pitch in a little towards a hosting
site to build on what is already an invaluable resource.
Best Wishes;
Thomas Knox
NIST
4475 Whitney Place
Boulder Colorado 80305
1-303-554-0307
tomknox@nist.gov

Thomas

Didier already hosts a collection of manuals on his site:

www.ko4bb.com http://www.k04bb.com

Bruce

tomknox@nist.gov wrote: > Hi Time-Nuts > I am new to this group, but have been aware of Time-Nuts for years. > Someone may already have done this, but if not we should host a data > base of manuals and notes for time and freq products and perhaps data > on different products members have characterized. I would be willing > to share any manuals I have and pitch in a little towards a hosting > site to build on what is already an invaluable resource. > Best Wishes; > Thomas Knox > NIST > 4475 Whitney Place > Boulder Colorado 80305 > 1-303-554-0307 > tomknox@nist.gov > > > Thomas Didier already hosts a collection of manuals on his site: www.ko4bb.com <http://www.k04bb.com> Bruce
D
Didier
Sat, Nov 1, 2008 11:23 PM

-----Original Message-----
From: time-nuts-bounces@febo.com
[mailto:time-nuts-bounces@febo.com] On Behalf Of tomknox@nist.gov
Sent: Saturday, November 01, 2008 5:29 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Efratom MRT schematic

Hi Time-Nuts
I am new to this group, but have been aware of Time-Nuts for years.
Someone may already have done this, but if not we should host
a data base of manuals and notes for time and freq products
and perhaps data on different products members have
characterized. I would be willing to share any manuals I have
and pitch in a little towards a hosting site to build on what
is already an invaluable resource.
Best Wishes;
Thomas Knox
NIST
4475 Whitney Place
Boulder Colorado 80305
1-303-554-0307
tomknox@nist.gov

Quoting "Corby Dawson" cdelect@juno.com:

Hi,

I'm working on an Efratom MRT rubidium standard and I need

the power

supply schematic.

Everything is working OK except the battery charge circuit is not
working.

With good batteries you can pull the AC cord and it runs on the
batteries OK, but then when you plug the AC back in the

charge current

(with very discharged batteries) is very low. The batteries charge
fine if a bench supply is used instead of the MRT supply.

Anyone have a copy of the manual or can supply the schematic of the
power supply and charger?

Thanks,

Corby Dawson


Criminal Lawyers - Click here.

wVWGvlod18EcSO0mdpEPQlyYZoHX/


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,
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and follow the instructions there.

http://www.ko4bb.com/cgi-bin/manuals.pl Didier KO4BB > -----Original Message----- > From: time-nuts-bounces@febo.com > [mailto:time-nuts-bounces@febo.com] On Behalf Of tomknox@nist.gov > Sent: Saturday, November 01, 2008 5:29 PM > To: Discussion of precise time and frequency measurement > Subject: Re: [time-nuts] Efratom MRT schematic > > Hi Time-Nuts > I am new to this group, but have been aware of Time-Nuts for years. > Someone may already have done this, but if not we should host > a data base of manuals and notes for time and freq products > and perhaps data on different products members have > characterized. I would be willing to share any manuals I have > and pitch in a little towards a hosting site to build on what > is already an invaluable resource. > Best Wishes; > Thomas Knox > NIST > 4475 Whitney Place > Boulder Colorado 80305 > 1-303-554-0307 > tomknox@nist.gov > > > > Quoting "Corby Dawson" <cdelect@juno.com>: > > > Hi, > > > > I'm working on an Efratom MRT rubidium standard and I need > the power > > supply schematic. > > > > Everything is working OK except the battery charge circuit is not > > working. > > > > With good batteries you can pull the AC cord and it runs on the > > batteries OK, but then when you plug the AC back in the > charge current > > (with very discharged batteries) is very low. The batteries charge > > fine if a bench supply is used instead of the MRT supply. > > > > Anyone have a copy of the manual or can supply the schematic of the > > power supply and charger? > > > > Thanks, > > > > Corby Dawson > > ____________________________________________________________ > > Criminal Lawyers - Click here. > > > http://thirdpartyoffers.juno.com/TGL2141/fc/Ioyw6i3oGdgUSMCXb8nALpcWDY > > wVWGvlod18EcSO0mdpEPQlyYZoHX/ > > > > _______________________________________________ > > 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.
H
Had
Sun, Nov 2, 2008 12:26 AM

There is also,  www.to-way.com for time-nut related stuff.

Hadley, K7MLR

At 03:29 PM 11/1/2008, you wrote:

Hi Time-Nuts
I am new to this group, but have been aware of Time-Nuts for years.
Someone may already have done this, but if not we should host a data
base of manuals and notes for time and freq products and perhaps data
on different products members have characterized. I would be willing
to share any manuals I have and pitch in a little towards a hosting
site to build on what is already an invaluable resource.
Best Wishes;
Thomas Knox
NIST
4475 Whitney Place
Boulder Colorado 80305
1-303-554-0307
tomknox@nist.gov

Quoting "Corby Dawson" cdelect@juno.com:

Hi,

I'm working on an Efratom MRT rubidium standard and I need the power
supply schematic.

Everything is working OK except the battery charge circuit is not
working.

With good batteries you can pull the AC cord and it runs on the batteries
OK, but then when you plug the AC back in the charge current (with very
discharged batteries) is very low. The batteries charge fine if a bench
supply is used instead of the MRT supply.

Anyone have a copy of the manual or can supply the schematic of the power
supply and charger?

Thanks,

Corby Dawson


Criminal Lawyers - Click here.


time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to

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.

There is also, www.to-way.com for time-nut related stuff. Hadley, K7MLR At 03:29 PM 11/1/2008, you wrote: >Hi Time-Nuts >I am new to this group, but have been aware of Time-Nuts for years. >Someone may already have done this, but if not we should host a data >base of manuals and notes for time and freq products and perhaps data >on different products members have characterized. I would be willing >to share any manuals I have and pitch in a little towards a hosting >site to build on what is already an invaluable resource. >Best Wishes; >Thomas Knox >NIST >4475 Whitney Place >Boulder Colorado 80305 >1-303-554-0307 >tomknox@nist.gov > > > >Quoting "Corby Dawson" <cdelect@juno.com>: > > > Hi, > > > > I'm working on an Efratom MRT rubidium standard and I need the power > > supply schematic. > > > > Everything is working OK except the battery charge circuit is not > > working. > > > > With good batteries you can pull the AC cord and it runs on the batteries > > OK, but then when you plug the AC back in the charge current (with very > > discharged batteries) is very low. The batteries charge fine if a bench > > supply is used instead of the MRT supply. > > > > Anyone have a copy of the manual or can supply the schematic of the power > > supply and charger? > > > > Thanks, > > > > Corby Dawson > > ____________________________________________________________ > > Criminal Lawyers - Click here. > > > http://thirdpartyoffers.juno.com/TGL2141/fc/Ioyw6i3oGdgUSMCXb8nALpcWDYwVWGvlod18EcSO0mdpEPQlyYZoHX/ > > > > _______________________________________________ > > 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.