 |
| Identical to |
DF92
= 1L4
|
| First Series |
Sep.1949 Philips-Archiv Sept. 1949 |
| First Source
(s) |
Sep.1949 : Philips Bulletin
|
|
| Base |
Miniatur-7-Pin-Base B7G, USA 1940
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| Was used by |
Radio/TV-reception etc. |
| Filament |
-: Direct /
-: Battery = /
|
| Description |
Mullard und USA = 1L4
Text in other
languages (may
differ)
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| Tube prices |
0 Tube prices (visible for members
only)
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Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus
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Röhrensammlung
Wolfgang Bauer
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Lorenz Empfänger-Röhren , 9. Auflage
Michael Sigmund
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SEL Handbuch 1964
Peter Hoddow
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