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.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Differential-instrumentation-amplifier
LED Audio Level (VU) Indicator and Alarm: The Dot Turns to Bar When The Signal Reach The Maximum Le
Emergency Siren circuit Simulates Police
Shock alarm circuit
A long-wave SWR meter
Loudspeaking crystal radio receivers
Easy street light control circuit
High-performance automatic water level controller circuit
Switching power supply from the high-speed switching power supply controller M62213FP



Top