Antique radios, Old Time Radios
T21
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Country:
Great Britain (UK)
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| Identical to |
T21
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| First Source
(s) |
Aug.1937 : Wireless World (The), London (WW, 79) Advertisement
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| Base |
Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=K)
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| Was used by |
Industrial |
| Filament |
Vf 4 Volts / If 1.2 Ampere / Indirect |
| Description |
Designed as a time base generator for use with magnetic deflection tubes.
It is a three electrode thyratron with a top cap for the anode.
Pin 1 - not used
Pin 2 - control grid
Pin 3 - heater
Pin 4- heater
Pin 5 - cathode
Top csp - anode
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| Information source |
British Radio Valves - The Classic Years: 1926-1946 Supplement, p. 155
- - Manufacturers Literature 1937
Babani, International Radio Tube Encyclopaedia
Taschenbuch zum Röhren-Codex 1948/49
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T21: Tabu Röhren-Codex, 1948
Anonymous 15 Collector
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Just Qvigstad
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T21: www.triodeel.com
Christian Schaufelberger
More ...
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3
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