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, etc.
How come your address does not work? John ----- Original Message ----- From: "Stan Searing" <[EMAIL PROTECTED]> To: "'Discussion of precise time and frequency measurement'" <time-nuts@febo.com> Sent: Thursday, January 25, 2007 2:00 PM Subject: Re: [time-nuts] Nifty old GR OCXO? (looking for information on693-A SYNCRO-CLOCK) > 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 > supply > 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. > > > Stan > > > > > > _______________________________________________ > time-nuts mailing list > time-nuts@febo.com > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
