Bass Control (CB21294E)

This circuit with losses of 20 dB at 350 Hz was found in older documentation, but it applies to modern preamp and amplifier circuits.

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Sawtooth Generator with AD Converter MC10318 (CB14550E)
The presented circuit produces a sawtooth signal from a digital signal. This configuration was...
Electronic Target Shooting (CB16351E)
We found this circuit in a 1982 documentation. Electronic games allow for different types of...
Logic test with sound (CB25389E)
This circuit has visual and audible status indication using an oscillator. The circuit is from a...