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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Capacitive discharge ignition (CB24182E)
This circuit is from a Radio Electronics from April 1972. The circuit uses power transistors of...
Sinusoidal to Square Converter (CB17472E)
We found this simple circuit in a 1999 documentation. It converts low-intensity sinusoidal signals (a...
Plasma Lamp (CB26130E)
This very high voltage circuit was found in the 1990 special issue of Radio Electronics...