This power supply protection circuit was found in the December 1978 Radio Electronics magazine. The SCR is triggered by shortening the power supply and quickly blowing the protection fuse.
This old circuit from a documentation from the 70s disconnects a TV from a signal obtained on the...
This traditional complementary symmetry circuit provides 20 W of rms power at a load of 8 ohms...
Using a CA3130 and a power transistor, this circuit can deliver a current of up to 500 mA with the...