Obviously, the function of muting circuits is to mute (kill) the audio signal. This can be done in a number of ways including switches, relay contacts, junction FETs, analog switches and bipolar ...

Very simple electronic touch switch – source A very simple electronic touch switch can be constructed using this circuit diagram . This electronic touch switch is based on two transistors an can ...

Similar circuits can be constructed for all ... function similarly to “signal turns switch off” relays and tubes. Transistors were far more study than vacuum tubes; so much so that no ...

In the days before semiconductor diodes, transistors ... as [Manuel] did recently with his relay computer. This post is a walk through some circuits that used those mechanical solutions before ...

The circuit consists of a power-monitor IC, a transistor, and an external relay. During the normal operation, when the +5 V is stable, transistor Q1 is on, the relay is energized, and +24 V is ...