Found in a 90s Electronic Design, this circuit operates with Maxim components of the time. The circuit operates at 50 MHz with a 10 V x 50 mA current.
This circuit uses common diodes as sensors, triggering when the temperature rises by touch,...
Simple timers can be designed using inverters or any other gate that can be connected as inverter. Figure...
This circuit was found in the 1987 Radio Electronics magazine. The components used are integrated...