On 2/11/2017 10:08 PM, Scott Stobbe wrote:
I was inspired recently coming across a Lampkin 105 frequency meter, as to
how frequency measurement was done before counters.
Certainly zero-beating a dial calibrated oscillator, would be one approach.
Google BC-221 and you may get some idea of how those worked. I just
wish I could find the one hidden in my garage :^)
Dan
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