Summary
Triode, Transmitting. Made by Marconi Wireless Telegraph Co. Ltd. In England. For short wave radio transmission, medium and high power; air cooled.
Filament single 'V' shape with tension springs. 17 volts at 11.5 amps; anode 5000 volts watts maximum; mutual conductance 4450; amplification factor 40.
Physical Description
Cylindrical glass bulb with neck at each end, supported vertically and mounted on a stand with display label. Anode connection is broken at bottom. The external leads are fitted with wood and glass beads.
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Donation from Amalgamated Wireless (Australasia) Ltd, 05 Feb 1941
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Manufacturer
Marconi's Wireless Telegraph Company Ltd, England, Great Britain, 1930-1939
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Inscriptions
Bulb: 56/M.T.9.F/314/Made & patented in England/(Marconi logo) Text on display label.
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Brand Names
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Classification
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Category
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Discipline
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Type of item
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Overall Dimensions
510 mm (Height), 585 mm (Circumference)
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Keywords