Avalanche Oscillator (CB7112E)

Found in a General Electric documentation from 1970, this circuit consists of a relaxation oscillator that uses a transistor from that time.

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Active Switch (CB19851E)
This is a two-input audio switching circuit. The operational can be of any type and more entries can...
12 W Stereo Amplifier TDA1010 (CB14721E)
We found this amplifier for automotive use in the Philips integrated circuit manual from 1990. The...
FM Booster (CB22014E)
Found in old English documentation this circuit can be made with a BF245 or equivalent. Coils are...