Antique radios, Old Time Radios
H408
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Country:
Great Britain (UK)
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| Identical to |
H408
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 3.7 Volts / If 0.08 Ampere / Direct / Battery = |
| Description |
Rac 34.5kΩ, Ia1.31mA, gm 0.38mA/v at Vg=-1.0 and Va=80
This tube had a red line painted around the bulb.
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| Information source |
Wireless World (The), London (WW, 79) Dec 1926
British Radio Valves - The Vintage Years: 1904-1925 P. 150 & 331, Supplement p. 80
History of the British Radio Valve to 1940
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H408: Fin Stewart
Fin Stewart
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Just Qvigstad
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