 |
| Identical to |
A441
= B11
= B1_SIF
|
| Similar
Tubes |
RE074d (other characteristic (electr. data))
Micro-Bigril (other base)
Bigrille-Ampli (other base)
MX40_Fotos (other base)
T_Adzam (can normally be replaced - small diff'ce)
U409D (other characteristic (electr. data))
DM300(alt) (other characteristic (electr. data))
A441N (other characteristic (electr. data))
DG407 (other characteristic (electr. data))
KL70410 (other characteristic (electr. data))
B9_Sator (can normally be replaced - small diff'ce)
D410 (can normally be replaced - small diff'ce)
VO (can normally be replaced - small diff'ce)
DG (other base)
|
| First Series |
Mar.1925 Tube leaflet collection E.Erb Analysis by original leaflets |
| First Source
(s) |
1924 : Saga of the Vacuumtube, Tyne p.421
|
|
| Base |
Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Eu)
Sidecontact
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
-: Direct /
-: Battery = /
If: 0.08 Ampere /
Vf 4 Volts /
|
| Description |
Heizung 3,4 - 4V/0,06A; Sättigungsstr. 10mA; Ruhestrom 6mA; Anodenspannung 20 - 100V; Verstärkungsfaktor 6; Durchgriff 17%; Steilheit 0,45mA/V; Innerer Widerstand 13000Ω; Anwendung: A.N.L.; Preis 1927: 15ATS. Daten aus dem WEKA-Katalog 1927, Seite 163.
Text in other
languages (may
differ)
|
| Literature |
Radios von gestern Seite 227
Taschenbuch zum Röhren-Codex 1948/49
|
|
|
|
|
|
Röhrensammlung
Wolfgang Bauer
|
|
Telefunken Werkstattbuch
Wolfgang Bauer
|
|
|
