100 MHz Oscillator (CB8051E)

This oscillator was found in a 1967 EEE. The transistor supports a modern equivalent. The power supply is 20 V.

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Tone Control Mixer (CB4918E)
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1 kHz Wien Bridge Oscillator (CB13442E)
We found this circuit in a Motorola documentation from 1978. The circuit is based on the LM324...
Projector control (CB8299E)
This old slide projector control circuit was found in an 80s Hands On. The circuit uses modern...