This circuit is the receiver for the previous transmitter modulated by an audio signal. The transducer is a ceramic capsule, in which case the circuit becomes ideal for telegraphic transmissions.
This circuit was obtained in an English publication of 1975. It is a regulator circuit for...
In this circuit the relay triggers on when light falls onto the sensor, a common LDR. Power supply...
January 2017 - Mouser Electronics already has the new Ultra Low Drop controllers from Toshiba...