Antique radios, Old Time Radios
A2004
|
Country:
Netherlands
|
|
| Identical to |
A2004
|
| Similar
Tubes |
Normally replaceable-slightly different:
A442
; L409
; RES094
; S407
|
| First Source
(s) |
1930 : Radio-Expres, Netherlands
|
| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Er)
Top contact screw type.
|
| Filament |
Vf 4 Volts / If 0.08 Ampere / Direct / Battery = |
| Description |
Radio-Expres 1930 quotes filament current 0.1A. Gm=0.8 at Va=200 and Amplification factor 200 with internal R=250k ohms.
|
Dimensions (WHD)
incl. pins / tip |
50 x 141 x 35 mm / 1.97 x 5.55 x 1.38 inch |
| Weight |
61 g / 2.15 oz |
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
Radio-Expres, Netherlands
- - Manufacturers Literature
|
|
A2004
Peter den Boer
|
Just Qvigstad
|
A2004: own collection
Peter den Boer
|
Collection of
Collection of a member from D |
|
|
|
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