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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RF line coupler (CB7435E)
Found in American documentation from the 90s, this circuit shows how to derive a signal in the...
Calibrator for cassette tape recorder (CB8772E)
Found in a Radio Electronics from the 90s, this circuit generates a 1 kHz signal to serve as a...
Linear Power Supply (CB25953E)
This circuit was found in the June 1990 issue of Radio Electronics magazine. The maximum current is 1...