Antique radios, Old Time Radios
Thermionic-relay
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Country:
Great Britain (UK)
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| Identical to |
Thermionic-relay
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| First Source
(s) |
1925 : British Radio Valves - The Vintage Years: 1904-1925 p.4, 61 & 113
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
2 Sidecontacts.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 0.12 Ampere / Direct / Battery = |
| Description |
This tube is designed to have the grid and anode connections from two screw terminals on the side of he base, adjacent to the normal grid and anode pin positions. These oins were not used. The anodeand grid are of spiral wire.
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Just Qvigstad
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| Data Compliance |
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