Antique radios, Old Time Radios
B_BTH
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Country:
Great Britain (UK)
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Brand:
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| Tube type: |
Triode, vacuum Text |
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| Identical to |
B_BTH
= G_Moorhead
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| Similar
Tubes |
Normally replaceable-slightly different:
B_MOV
Different maximum ratings:
R_England
; TM
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| First year |
1918
?
Saga of the Vacuum Tube, Tyne Seite 227
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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 4 Volts / If 0.72 Ampere / Direct / Battery = |
| Description |
When used as a transmitting valve, the filament got 6 Volt and the anode up to 800 Volts.
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Dimensions (WHD)
incl. pins / tip |
x 118 x 55 mm / x 4.65 x 2.17 inch |
| Information source |
British Radio Valves - The Vintage Years: 1904-1925 Pages 28 & 78
Saga of the Vacuum Tube, Tyne Pages 227 & 228
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B_BTH: rtt
Anonymous 10 Collector
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Just Qvigstad
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Collection of
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