[time-nuts] hammond 77589
Jean-Louis Noel
jln at stben.net
Wed Jan 16 09:00:01 UTC 2013
Hi Ed,
From: "Ed Breya" <eb at telight.com>
>I just noticed one more thing - if the NTC thermistor in the schematic
> is the actual one that senses the oven temperature, then the oscillator
> and bridge are one in the same. If this is the case, then the oscillator
> amplitude could be proportional to bridge imbalance - if the NTC is
> being balanced by the 1414 ohm resistor.
Yes, it is.
It works in AC at 315 Hz.
Thank you so much.
Bye,
Jean-Louis
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