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Old October 7th 17, 12:12 PM posted to uk.radio.amateur,rec.radio.amateur.boatanchors
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Default Mechanical scanners?

Dabbling as I am with horology at the moment, I
wonder if there were any mechanical scanners, other
than those which successively activated Ledex switches?

What I am thinking might have been, is a pendulum
or platform escapement slowly advancing a tuning condenser.

 
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