Cassette Motor Speed Calibrator


Posted on Jun 30, 2012

This frequency/voltage converter enables calibrations of cassette-deck speed. It records a steady 1-kHz ton


Cassette Motor Speed Calibrator
Click here to download the full size of the above Circuit.

e on the cassette deck, and monitors the frequency on the converter. Then, play the tone back and adjust the motor speed until you get the same frequency reading on the converter. The frequency/ voltage converter can drive an analog meter to indicate small variations in tape speed.




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