This circuit uses opposing MOSFETs operating on a 6 to 15 V input voltage. The circuit is from 1997 Linear Technology Applications and uses common components at the time.
This 7400 TTL circuit has a memory, keeping the LED on when a pulse is detected. The circuit must be...
This circuit is from a 1995 Electronics Now. It generates a 1 kHz sinusoidal signal. See in the...
We found this circuit in an old documentation for radio amateurs. The transistor can be any PNP of...