| Identical to |
E444
= AN4126
= SD4_Mullard
= RENS1254
= A4DP
= TE44
= WE26
= DS4100
= B430N
= RS4144
= RS4344
|
| Similar
Tubes |
B2044 (Heater different)
A4DF (can normally be replaced - small diff'ce)
NDS42 (can normally be replaced - small diff'ce)
4A14 (can normally be replaced - small diff'ce)
E444_U (other base)
|
| First Series |
1933 Tube leaflet collection E.Erb Analysis by original leaflets |
| First Source
(s) |
Apr.1933 : Philips Bulletin 1933
|
| Successor Tubes |
1937
EBF1
EBF2
DT4
DT3_Zenith
|
|
| Base |
Europe 6-Pin B6 (1933) (Codex=Le)
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
-: Indirect /
-: Parallel, (AC/DC) /
If: 1.1 Ampere /
Vf 4 Volts /
|
| Tube prices |
1 Tube prices (visible for members
only)
|
| Literature |
Taschenbuch zum Röhren-Codex 1948/49
|
|
