Antique radios, Old Time Radios
RES044
|
Country:
Germany
|
|
| Identical to |
RES044
|
| Similar
Tubes |
Normally replaceable-slightly different:
410SC
; B442
; E200/300
; E23
; S4
Heater different:
RES044s
|
| First year |
1928
Tube leaflet collection E.Erb Analysis by original leaflets
|
| First Source
(s) |
Aug.1928 : Funk Bastler Heft 34, S.529
|
| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Er)
Top contact screw type.
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 3.5 Volts / If 0.06 Ampere / Direct / Battery = |
| Description |
Erste Schirmgitter-Tetrode für Batterieheizung von Telefunken. Anfangs als nicht metallisierte Ausführung für 3,5 V Heizspannung erhältlich, spätere metallisierte Röhren zeigen 3,8 V. Änderung des Obenanschlusses von zylindrischer Hülse auf den üblichen Bakelitanschluss.
|
| Tube prices |
3 Tube prices (visible for members
only)
|
| Information source |
Röhren-Vademecum; P.H. Brans; Antwerpen p. 63
Universal Vade-Mecum, Electron Valves and Semiconductor Devices Section
Taschenbuch zum Röhren-Codex 1948/49
Röhrencodex , Röhren-Taschenbuch 1950 23000 Röhren
|
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RES044: Prüfkarte Röhrenprüfgerät W 18N
Jörg Kulbe
|
Just Qvigstad
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RES044: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector
More ...
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):16
Collection of
Collection of a member from D Collection of a member from D |
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