Found in a 1965’s Electronic Design, this circuit operates with a voltage of 1.5 V. The relay can be of a reed relay or other type.
In the circuit that uses a PIC16F84, the audio present at the input will have its level controlled by...
August 2017 - STMicroelectronics' new T850 switches with triacs up to 8 A can be obtained from...
This circuit was found in an American documentation from 1969. The circuit is a multi-indicator with...