Antique radios, Old Time Radios
APP4B
|
Country:
Hungary
|
|
| Identical to |
APP4B
|
| Similar
Tubes |
Other base:
APP4Bs
Other base and other heater:
AL4
|
| Base |
British-7-Pin, old (M7A) (Codex=Ndo)
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 2 Ampere / Indirect |
| Description |
W.Sprick: Austausch-Röhren-Lexikon 1947 gibt zwei Sockeltypen an: Topfsockel M8A und 7-Stift M7A.
|
| Information source |
Babani, International Radio Tube Encyclopaedia p. 50 & 51
Universal Vade-Mecum, Electron Valves and Semiconductor Devices Section 207, p. 406
Taschenbuch zum Röhren-Codex 1948/49
|
|
APP4B: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20
More ...
|
Just Qvigstad
|
|
Collection of
|
|
|
|
You reach this tube or valve page from a search
after clicking the "tubes" tab or by clicking a tube
on a radio model page. You will find thousands
of tubes or valves with interesting links. You
even can look up radio models with a certain tube
line up.
[rmxtube-en]
| Data Compliance |
More Information |
|
|
|
