[time-nuts] Restoring GR 1120-AB Frequency Standard - Need assist...
wa3frp at aol.com
wa3frp at aol.com
Tue Aug 19 15:46:56 UTC 2008
I am in the last stage of restoring a 1964 General Radio Frequency
Standard Model 1120-AB.
I'm having trouble getting the inner oven to work propoerly and the
problem has been traced to a defective thermostat in the inner oven.
In checking, the thermostat is a thermoswitch manufactured by Princo
and is no longer available.
My options appear to be:
1. locate a working GR Standard Frequency Oscillator (1113-A) and
replace the entire chassis.
2. locate a non-working GR Frequency Oscillator and part it out as
needed
3. find a suitable replacement for the original thermoswitch (78 C -
closes circuit when temperature is reached)
I was wondering if anyone on this list has any sources or leads for #1
and #2 and any opinions on a source for #3.
Thanks
Russ WA3FRP
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