[time-nuts] Nifty old GR OCXO? (looking for information on693-A SYNCRO-CLOCK)
jmfranke at cox.net
Thu Jan 25 15:43:52 EST 2007
I did find some information on the 693-A in a partial installation manual
for a C-21-H Standard Frequency Assembly. I can scan the one page that at
least shows the rack wiring harness if that would be of help. Or I could
loan you the partial manual so you could tell more about the high volyage,
Your address bounces.
----- Original Message -----
From: "Stan Searing" <stans at sycard.com>
To: "'Discussion of precise time and frequency measurement'"
<time-nuts at febo.com>
Sent: Thursday, January 25, 2007 2:00 PM
Subject: Re: [time-nuts] Nifty old GR OCXO? (looking for information on693-A
> While we're on the old GR subject...
> I have a General Radio 693-A "syncro-clock and amplifiers" that contains
> a GR model 611 syncro-clock module. I think the oscillator and power
> are separate (and I don't have them). Does anyone have any information on
> the 693-A?
> (Copies of a manual would be great!)
> I'd like to get it running within a decade, and given the number of
> projects I have going at once, I should start soon.
> Don't know if this helps, but there is a decal on that back that says:
> THIS INSTRUMENT IS LICENSED UNDER
> PATENTS OF THE AMERICAN TELEPHONE
> AND TELEGRAPH COMPANY SOLEY FOR
> UTILIZATION IN RESEARCH, INVESTIGA-
> TION, MEASUREMENT, TESTING, INTRUC-
> TION, AND DEVELOPMENT WORK IN PURE
> AND APPLIED SCIENCE.
> time-nuts mailing list
> time-nuts at febo.com
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