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.
Found in a Popular Electronics from the 80's, this circuit triggers an SCR keeping an LED on when...
Found elsewhere in this section, this circuit is from the April 1971 Radio Electronics magazine. Note...
This circuit works with practically any tunnel diode, transmitting signals in the FM range with a...