[time-nuts] Restoring GR 1120-AB Frequency Standard - Need
wb6bnq at cox.net
Tue Aug 19 13:58:30 EDT 2008
I think you missed the point ! He was not necessarily trying to use it
as a frequency standard. He said he was trying to RESTORE it,
including making it work !
Mark Sims wrote:
The original thermoswitch sounds like is is a mechanical switch, so
it can't be all that accurate or stable.
I would use something like one of those TO-92 temperature sensor
chips. I would probably use a 8 pin micro with an A/D to read it
and drive a reed relay (or transistor). Analog people would use a
comparator and voltage reference chip/pot.
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