This sonic control circuit for a small robot turtle was obtained in an American documentation from 1967. The circuit uses a ceramic capsule to fire an SCR.
Found in an American documentation from 1968, this circuit senses the temperature through an...
This circuit is intended to trigger an alarm when the input voltage exceeds one value and to...
This 80's amplifier delivers 6 W of 8 ohm speaker power without using an output transformer....