Manual Clock 7400 (CB22411E)

This circuit to produce clock pulses is manually driven. The circuit is TTL and must be powered by 5 V.

High Sensitivity Fan Control (CB15519E)
Great sensitivity for the circuit can be obtained with a Darlington amplification step for the...
Class D Experimental Amplifier (CB5009E)
This 2005 circuit was found in an English publication and can be implemented with virtually any...
Vehicle Alarm (CB4867E)
This car alarm was found in an American '80s documentation. The circuit automatically activates...