This circuit was found in an American publication in 1966. The circuit uses a general-purpose FET that admits an equivalent. The instrument is a 250 uA full-scale microammeter.
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...