Antique radios, Old Time Radios
506BU
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Country:
Great Britain (UK)
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| Identical to |
506BU
= R1
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| First Source
(s) |
1931 : History of the British Radio Valve to 1940 .p 138 & 169
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 1 Ampere / Direct / Specified voltage AC/DC |
| Description |
250-0-250V rms; Ia <60mA mean.
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| Information source |
Babani, International Radio Tube Encyclopaedia p. 256 & 257
- - Manufacturers Literature
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49
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506BU: Telefunken Werkstattbuch
Wolfgang Bauer
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Just Qvigstad
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
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