 |
| Identical to |
EFM11
|
| Similar
Tubes |
EFM1 (other base)
WE18 (other base)
UFM11 (Heater different)
|
| First Series |
Jul.1938 Tube leaflet collection E.Erb Analysis by original leaflets (V7) |
| First Source
(s) |
15.Jul.1938 : Funk, Die Zeitschrift des Funkwesens 1938 #14
|
| Predecessor Tubes |
AM2
C/EM2
|
| Successor Tubes |
1939
EM11
|
|
| Base |
German Steel Y8A, 1938 (Codex=R)
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
-: Indirect /
-: Parallel / series AC/DC /
If: 0.2 Ampere /
Vf 6.3 Volts /
|
| Tube prices |
8 Tube prices (visible for members
only)
|
| Literature |
Taschenbuch zum Röhren-Codex 1948/49
|
|
|
| |
|
| |
Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus
|
|
 |
|
Röhrensammlung
Wolfgang Bauer
|
|
Telefunken Werkstattbuch
Wolfgang Bauer
|
|
Rundfunkröhren Ratheiser 1949
Gerhard Heigl
|
|
 |