This circuit was found in an American publication from 1965. The circuit uses components from that time. No information was given about the excitation transformer. Observe the high input power.
The circuit shown in the figure shuts off a load when the voltage drops below the value determined...
This oscillator can run in frequencies up 10 MHz depending on the Power supply voltage. The 1 µF...
This circuit was obtained from an American technical manual from the 80's. The integrated circuit...