Antique radios, Old Time Radios
E441
| Base |
Europe 5-Pin , B5 + side contact (Codex=Fa / sp)
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC |
| Description |
redecessors: none, Successors / Nachfolger: E448, RENS1224, X4122 By its construction this tube is a space- charging-grid tetrode, but should be used as self oscillating frequency converter. The oscillator feedback is applied to grid 1, the input signal to grid 2. Its amplification is low and not to control, the oscillator voltage is closely coupled to the input circuit..
Text in other
languages (may
differ)
|
| Information source |
Röhren-Vademecum; P.H. Brans; Antwerpen P. 33
Universal Vade-Mecum, Electron Valves and Semiconductor Devices Section 152, p. 214
Taschenbuch zum Röhren-Codex 1948/49
Babani, International Radio Tube Encyclopaedia
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E441: Telefunken Werkstattbuch
Wolfgang Bauer
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Just Qvigstad
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E441: Philips Röhren Daten 1933
Peter Hoddow
More ...
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):13
Collection of
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