This circuit was found in an old GE manual. It uses a thermocouple as a sensor. The SCR must be in accordance with the power of the controlled load.
This circuit is designed to trigger a xenon lamp from a switch. The circuit was found in the May...
This circuit was found in a Hands On Electronics from the 90s. It is intended to supply old tape...
This amplifier uses a 1975 integrated circuit, which is uncommon today. The circuit has a gain of 30...