100 V x 250 mA switched converter (CB9961E)

This circuit was found in a 1970s documentation. The components are from that time, and semiconductors are difficult to obtain today.

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20 W Class AB Amplifier (CB6283E)
This circuit was suggested by General Electric in a 1969 documentation. The transistors are of the...
LM359 Fast Difference Amplifier (CB14374E)
The focused circuit was found in the National Semiconductor's Linear Applications Handbook of...
Guitar Intensifier (CB11507E)
The purpose of this circuit found in a Popular Electronics from 1972 is to intensify certain...