| Identical to |
E442
= NC4
= H4100D
= RS4142
|
| Similar
Tubes |
AS494 (can normally be replaced - small diff'ce)
DW6 (can normally be replaced - small diff'ce)
S4150 (can normally be replaced - small diff'ce)
MS4 (can normally be replaced - small diff'ce)
S412N (can normally be replaced - small diff'ce)
S430N (can normally be replaced - small diff'ce)
A4GAF (can normally be replaced - small diff'ce)
TE42 (can normally be replaced - small diff'ce)
J4091 (can normally be replaced - small diff'ce)
E442_4pin (other base)
|
| First Series |
1928 Tube leaflet collection E.Erb Analysis by original leaflets |
| First Source
(s) |
Aug.1928 : -- Original-techn. papers.
1928 : Saga of the Vacuumtube, Tyne p.422
|
|
| Base |
Europe 5-Pin (O5A, B5) (Codex=Fc)
Top contact screw type
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
-: Indirect /
-: Parallel, (AC/DC) /
If: 1 Ampere /
Vf 4 Volts /
|
| Description |
Siehe die Unterschiede zur E442S (Kolben und elektrische Daten) - und auch die 4-Stift-Ausführung der E442.
Text in other
languages (may
differ)
|
| Tube prices |
1 Tube prices (visible for members
only)
|
| Literature |
Taschenbuch zum Röhren-Codex 1948/49
|
|
