Latching relay (CB25722E)

The figure shows how to connect a relay to obtain the latch effect. The circuit is from an Electronics Now from June 1994.

Interface SCR and Relay (CB12106E)
This interface was found in a Modern Electronics magazine from 1990. Although the circuit is...
Audio Priority Switch (CB12434E)
We found this circuit in a 1981 publication. We applied an audio signal, for example, a music...
Voltage Follower with the CA3140 (CB12304E)
In a voltage follower, the voltage gain is unitary, the input impedance is very high, and the...