Antique radios, Old Time Radios
C443N
|
Country:
Netherlands
|
|
| Identical to |
C443N
= PP431
= L427D
= RES374
|
| Similar
Tubes |
Normally replaceable-slightly different:
D70
Other base:
C443N_UY
|
| First year |
1930
Tube leaflet collection E.Erb Analysis by original leaflets
|
| First Source
(s) |
1930 : -- Collector info (Sammler)
|
| Predecessor Tubes |
C443
PP430
|
| Base |
Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Foo)
|
| Filament |
Vf 4 Volts / If 0.25 Ampere / Direct / Specified voltage AC/DC |
| Description |
About 1930 the C443 was replaced by the C443N, which was capable of slightly increasing the output power from 2,8 to 3 Watts but associated by increasing the grid bias from -25 to -42 Volts.[Jacob Roschÿ, 2003-01-17]
Vg1: -45V !!!
Vg2: 200V
Va: 300V
Text in other
languages (may
differ)
|
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
|
| |
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C443N: ficha de valvulas
Getulio Jimenez-Gomez
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 |
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C443N: Aus eigener Sammlung
Pim J.H. Vercoulen
More ...
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C443N: Telefunken Werkstattbuch
Wolfgang Bauer
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C443N: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector
More ...
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from Just Qvigstad
|
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):15
Collection of a member from D
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