This circuit turns off a load after an interval of 8 to 80 seconds adjusted on the potentiometer. The circuit is from a Radio Electronics June 1970. The time depends on C1 and can be changed.
This interface was found in a Modern Electronics magazine from 1990. Although the circuit is...
We found this circuit in a 1981 publication. We applied an audio signal, for example, a music...
In a voltage follower, the voltage gain is unitary, the input impedance is very high, and the...