[R-1051] Frequency standard module

[Steve Hobensack]

Look at the schematic diagram of the frequency
standard module. There is a small voltage regulator
board that drops voltage and sends it to the oven
circuit. It is marked as "27 volt regulator". Could
this be a misprint ? The voltage on my unit measures
17v. The zener diode references out to near 17v in my
parts books. I have found a couple modules where this
regulator board has been removed and the oven wired
straight to the 28v source. Should the temperature
circuit fail, it will really cook the crystal circuit
board.

Also , I am still looking for a schematic diagram for
the frequency standard module that uses slug tuned
transformers instead of trimmer caps. Thanks

Steve......KJ8L

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