3-transistor amplifier (CB23537E)

This transformerless 16-ohm speaker circuit was found in a Radio Electronics from October 1963. The circuit is powered by 12 V and the gain is 50 dB.

| Clique na imagem para ampliar |

Flame Detector (CB17547E)
This circuit is intended to monitor the flame of gas heating systems that must always have a small...
Immobilizer for car (CB26287E)
This circuit deactivates the ignition system after a certain time when you leave the vehicle. In...
Diac DC Over Voltage Protection (CB13366E)
This circuit was obtained in a technical publication from the 1970s. It fires a diac and thus a...