Found in an American documentation from the 90's, this 1.5 A power supply provides 1.5 to 22 V of output. The integrated circuit must be mounted on a heat sink.
We found this multiple thermostat circuit in July 1980 Radio Electronics magazine. It uses...
This circuit is from a 1986 Revista Española de Electrónica. It consists of an amplifier with...
Suggested by a 1968 Philips documentation this Eccles Jordan rocker as it was called can operate...