Micropower amplifier (CB7461E)

This amplifier was found in an Electronics Now from the 90s. The FETs are part of a CD4007CB.

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Infrared Transmitter (CB6370E)
This circuit was found in a Hands On Electronics with the suggested application an optical link for...
Active crossover (CB949E)
We find the original circuit in a technical publication of 1978. Changing the components, such as...
LM3914 Bargraph Voltmeter with Separate Power Supplies (CB25454E)
This circuit was found in the March 1992 issue of Radio Electronics magazine. The 10-LED circuit has...