Vibrator (electronic)
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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.
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
Vacuum tube battery
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In the early days of electronics, devices that used vacuum tubes, such as radios, were powered by batteries. Each battery had a different designation depending on which tube element it was associated
Vibrator (electronic)
…plate voltages ranging from about 45 volts to 250 volts in electronic devices such as radios. For portable radios, hearing aids and similar equipment, B batteries were manufactured with various voltage ratings. In order to provide the necessary voltage for a radio from the typical 6 or 12 volt DC supply available…
Eveready 742 "A" battery with 1.5-volt Fahnestock clip terminals
Eveready 762-S "B" battery with 45-volt & 22.5-volt tap screw terminals
Eveready 761 "C" battery with 4.5-volt, 3-volt, 1.5-volt tap screw terminals