Tinkerer wrote:

I have a Heathkit ET-3100 electronic design experimenter that has a very
basic sine/ square wave function generator. Controls all analog and no
scale really. Output is from 200 Hz - 2 Khz on "low" and 2 Khz to 20
Khz on "high". Exact frequency depends on where the pot is adjusted.
How can I calibrate this to be more precise, preferably in a simple way?

Beat it with mains hum. This should work on the low range and at least
part of the way up the high range.

--
~ Liz Tuddenham ~
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