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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Multimeter protector C (CB8383E)
Found in a 1966 Electronics World, this circuit applies to the protection of any analog...
Variable Peak Detector (CB22130E)
We found this circuit in an English documentation from the 80's. The circuit can make use of...
12 V to 220 V converter 555 (CB17238E)
The power of this converter is not the greatest, it can only supply small fluorescent lamps,...