CMOS Siren (CB26157E)

Found in the 1991 Electronics Experimenter Handbook magazine, this circuit has good power and is recommended to be triggered by light.

| Clique na imagem para ampliar |

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,...