[time-nuts] Vintage Frequency Measurement
Chris Albertson
albertson.chris at gmail.com
Sun Feb 12 20:20:38 UTC 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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