High Speed Digital to Analog Converter (CB5170E)

This 8-bit converter was found in an American 1980s documentation. Motorola components are uncommon today. The circuit serves as a reference.

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Tone-controlled microphone amplifier (CB20806E)
This circuit was found in American documentation from the 1980s. The integrated circuit used is...
Phase Shift Oscillator (CB12065E)
In the figure we have the traditional configuration of a phase shift oscillator that produces a...
Battery charger with current and voltage limiter (CB9537E)
This battery charger circuit was found in ancient American documentation. The components are...