Antique radios, Old Time Radios
225DU
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Country:
Great Britain (UK)
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| Identical to |
225DU
= 10E/525
= ZA5611
= CV1454
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| First Source
(s) |
1937 : History of the British Radio Valve to 1940 p.170
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| Base |
British-7-Pin, old (M7A) (Codex=Nw)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 2 Volts / If 0.5 Ampere / Direct |
| Description |
Two separate 0.5A filaments for use in a voltage doubler circuit.
<750V piv and <20mA mean current.
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| Information source |
Taschenbuch zum Röhren-Codex 1948/49
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225DU: 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
Collection of
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