Antique radios, Old Time Radios
RES374
|
Country:
Germany
|
|
| Identical to |
RES374
= L427D
= C443N
= PP431
|
| Similar
Tubes |
Normally replaceable-slightly different:
D70
; DP3
; M704
; UP4C
; W506
Heater different:
IT103
|
| First year |
1931
Tube leaflet collection E.Erb Analysis by original leaflets
|
| Predecessor Tubes |
PP430
|
|
Successor Tubes
|
1933
RES964
RENS1374d
|
| Base |
Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Foo)
|
| Was used by |
Radio/TV-reception etc. |
| 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]
Text in other
languages (may
differ)
|
| Tube prices |
4 Tube prices (visible for members
only)
|
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
|
RES374: Leipzig LW
Egon Strampe
|
RES374: Telefunken Werkstattbuch
Wolfgang Bauer
|
Just Qvigstad
|
RES374: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector
More ...
|
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):150
Collection of
Collection of a member from D Collection of a member from FIN |
|
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|
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