10-Step Sine Generator (CB24472E)

This CMOS generator with the 4018 IC was found in a November 1976 Radio Electronics magazine. It uses a 741 op-amp as the audio amplifier.

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Gain Mike (CB17140E)
This type of circuit is interleaved between a microphone and a transmitter in order to improve the...
Naval Battle Game (CB16233E)
We found this project in an old publication from 1983. The circuit uses 4 switches of 1 pole x 8...
100 mW transistor amplifier (CB22521E)
One of the first transistor amplifiers with transformerless output but using a 45-ohm speaker. This...