[time-nuts] US Army Frequency Standard
j at howell61.f9.co.uk
Tue Jan 24 21:59:34 UTC 2012
I recently obtained a curious Low Frequency Standard dating from the late 1950s. Its output can be switched to a number of frequencies from 10 to 190Hz, derived from a tuning fork. It is marked "Signal Corps" and "US Army" with a type number TS-65D/FMQ-1.
Does anyone have any information about this unit, in particular what it was used for and why the strange negative going pulse output and specific frequencies.
Thanks in advance,
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