Motor–generator
Videos
A motor–generator is a device for converting electrical power to another form. Motor–generator sets are used to convert frequency, voltage, or phase of power. They may also be used to isolate electric
Aircraft radio modulator unit from the Second World War, showing a dynamotor (the black cylinder) which converts the aircraft's 24–28 V DC to 500 V DC for the transmitter. Dübendorf Museum of Military Aviation
An MG set used to provide a variable three phase AC voltage for an Electron Beam Welding Machine high voltage power supply.
Vibrator (electronic)
Videos
A vibrator is an electromechanical device that takes a DC electrical supply and converts it into pulses that can be fed into a transformer. It is similar in purpose to the solid-state power inverter.
Motor–generator
…vacuum tube vehicle radio receivers, did not use expensive, noisy and bulky motor–generators. Instead, they used an inverter circuit consisting of a vibrator (a self-exciting relay) and a transformer to produce the higher voltages required for the vacuum tubes from the vehicle's 6 or 12 V battery. In the…
A pair of Heathkit-brand vibrators manufactured by James Electronics, with octal bases. The one on the right has been stripped of the aluminum cap so the inner components can be seen.
An electro-mechanical vibrator from the Grass Instrument Co. Used as part of a chopper amplifier in polygraph input amplifier.
Schematic diagram of a typical circuit to convert low voltage DC to high voltage DC