This switching circuit for the power grid, featuring fast acting characteristics, was found in a 1965 General Electric documentation. Modern equivalent components can be used.
This analog ammeter circuit was found in documentation from the 1980s. The components admit...
This conventional Hartley oscillator circuit with an audio output transformer was found in a...
This bar or moving point indicator (bargraph) employs the LM3914 and can excite 10 LEDs, of any...