This high sensitivity sensor was found in a 1967 General Electric SCR manual. The circuit admits equivalents by triggering a load according to the used SCR.
The purpose of this circuit, which we found in the November 1986 Radio Electronics issue, is to...
This circuit was found in an 80's Electronic Design. The frequency depends on the crystal and the...
This switching regulator circuit with less than 100 mV ripple was found in a 1980s documentation. The...