 |
| Identical to |
E449
= X4123
= RENS1234
|
| Similar
Tubes |
PH4105 (can normally be replaced - small diff'ce)
|
| First Series |
1933 Tube leaflet collection E.Erb Analysis by original leaflets |
| First Source
(s) |
Apr.1933 : Philips Bulletin
|
| Successor Tubes |
AH1
|
|
| Base |
Europe 7-Pin (C7A, C, 1933) (Codex=La)
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
-: Indirect /
If: 1.2 Ampere /
Vf 4 Volts /
|
| Literature |
Taschenbuch zum Röhren-Codex 1948/49
|
|
|
| |
|
| |
ficha de valvulas
Getulio Jimenez-Gomez
|
|
|
|
my collection
Jose Luis Campayo-Soriano
|
|
Telefunken Werkstattbuch
Wolfgang Bauer
|
|
RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector
|
|
|
