Non Inverting Amplifier (CB6433E)

Based on an operational of the time, this Popular Electronics circuit can be designed with any equivalent operational.

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Low Loss Dimmer (CB5295E)
This circuit was found in a 1980s documentation. The low voltage circuit uses a PUT. Transistors can...
Data interface for analog TV (CB7171E)
This circuit was found in an old Electronic Design used to apply digital signals to an analog...
Cheap radio control (CB7172E)
Very simple, this radio control circuit for short distances was found in an Electronic Design from...