Antique radios, Old Time Radios
TB1_Kenotron
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Country:
United States of America (USA)
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| Identical to |
TB1_Kenotron
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| Base |
SPECIAL TUBEBASE in general
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| Was used by |
Military and/or Government |
| Filament |
Vf 7.5 Volts / If 1.45 Ampere / Direct / Battery = |
| Description |
This Kenotron was utilized to regulate the output voltage of the wind-driven generators used to furnish power to aircraft radio equipment.
Filament voltage range 7.5 to 10.75 V. Va max.= 250 V; Ia max.= 125 mA. Used in WW I aircraft. Special 3-prong Shaw brass-bakelite or brass-ceramic base. About 4500 were delivered to the Signal Corps.
The Term "Kenotron" was chosen for the pure electron-discharge in a two element-tube. The word Kenotron is derived from the Greek "kenos", meaning "empty space" (vacuum), and "tron", used by the Greek to denote an instrument. The TB1 has a unic UV like 3 pin base. The position of the locking key and the filament pins are different from the UV like 3 pin Navy base and the usual UV4 base.
Text in other
languages (may
differ)
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| Tube prices |
4 Tube prices (visible for members
only)
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| Information source |
Saga of the Vacuum Tube, Tyne page 141, 147, 148, 149
70 Years of Radiotubes and V.
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TB1_Kenotron: own collection
Peter den Boer
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Collection of
| Documents about this component |
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