[time-nuts] Vintage Frequency Measurement

Chris Albertson albertson.chris at gmail.com
Sun Feb 12 15:20:38 EST 2017

So far all the answers are about high-end expensive equipment.   There were
also low cost frequency meters.  I have one 40 years ago that was not
expensive.  It wa a simple "frequency to voltage" circuit that drove an
analog meter.   It was made just before the digital multimeters came out,
maybe in the 70's  Sold for well under $100.   I think these were the most
common type.    The others being described here were WAY behind the
hobbyist's budget

On Sun, Feb 12, 2017 at 5:39 AM, Dan Rae <danrae at verizon.net> wrote:

> 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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Chris Albertson
Redondo Beach, California

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