This circuit was found in an 80's EDN. The circuit uses a current common CMOS, the 4093 powering an LED. Trigger adjustment is done in a trimpot.
The circuit shown uses an unusual operation, but can be replaced by an equivalent, and a FET which...
Indicated for telegraphy practice, this circuit was found in the Radio Electronics magazine of...
January 2017 - The new Texas Instruments LPV801 and LPV802 amps available at Mouser Electronics consume...