Antique radios, Old Time Radios
L4138D
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Country:
Germany
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| Identical to |
L4138D
= RENS1384
= E463
= P441N
= APP4130
|
| First Source
(s) |
Mar.1933 : Philips Bulletin
|
| Predecessor Tubes |
L4150D
|
|
Successor Tubes
|
1935
AL2
|
| Base |
Europe 6-Pin B6 (Hx B) 1933 (Codex=Ld)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 1.3 Ampere / Indirect / Specified voltage AC/DC |
| Description |
Simultaneously with the directly heated E443H Philips offered the equally sized indirectly heated E463 (=L4138D) with the advantage of less hum and easier obtaining of grid bias. Its spreading was far below the E443H, it was not present on the German market.
Text in other
languages (may
differ)
|
| Information source |
Babani, International Radio Tube Encyclopaedia p. 116 & 117
Universal Vade-Mecum, Electron Valves and Semiconductor Devices Section 207, p. 407
Taschenbuch zum Röhren-Codex 1948/49
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L4138D: Telefunken Werkstattbuch
Wolfgang Bauer
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Just Qvigstad
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L4138D: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):5
Collection of
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