| Identical to |
E424
= A430N
= TE24
= 70504
|
| Similar
Tubes |
REN904 (can normally be replaced - small diff'ce)
TL425 (can normally be replaced - small diff'ce)
E424_USA (other base)
NU41 (can normally be replaced - small diff'ce)
WG42 (can normally be replaced - small diff'ce)
ND4_Orion (can normally be replaced - small diff'ce)
|
| First Series |
1929 Tube leaflet collection E.Erb Analysis by original leaflets |
| First Source
(s) |
Nov.1928 : -- Original-techn. papers.
|
|
| Base |
Europe 5-Pin (O5A, B5) (Codex=F)
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
-: Indirect /
-: Parallel / series AC/DC /
If: 1 Ampere /
Vf 4 Volts /
|
| Tube prices |
2 Tube prices (visible for members
only)
|
| Literature |
Taschenbuch zum Röhren-Codex 1948/49
Saga of the Vacuumtube, Tyne
|
|
