Summary
Large triode designed for use in high powered audio amplifiers used for example in sound film and public address. A pair of them would produce about 600 watts of audio. Also used as modulator, which adds a modulating signal to the carrier wave.
It was donated by 3KZ Radio Station, 64 Elizabeth Street, Melbourne in 1936 and manufactured by Philips Holland.
Thoriated tungsten w-shaped filament with tension springs; 11 volts at 2.5 amps. Anode 2000 volts at 1125 ma.Equivalent to MC2/200
Physical Description
Cylindrical bulb with nickel plated end caps, mounted on wooden block with display label. Base Has two round and one flat pin.
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Donation from 3KZ Radio Station, 12 Aug 1936
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Manufacturer
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Inscriptions
Bulb: PHILIPS/MADE IN HOLLAND/M.B.2-200/4220 Text on display label.
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Classification
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Type of item
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Overall Dimensions
390 mm (Height), 320 mm (Circumference)
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