 |
| Identical to |
UBF11
|
| Similar
Tubes |
UBF11g (other shape (e.g. bulb, size))
UBF171 (other base)
VBF11 (Heater different)
|
| First Series |
Jul.1939 Tube leaflet collection E.Erb Analysis by original leaflets (V7, T8) |
| First Source
(s) |
23.Jul.1939 : Funkschau (FS) 1939 #30
|
| Successor Tubes |
1948
UBF80
UAF42
UBF15
UBF171
|
|
| Base |
German Steel Y8A, 1938 (Codex=Rh)
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
-: Indirect /
-: Series, AC/DC /
If: 0.1 Ampere /
Vf 20 Volts /
|
| Tube prices |
2 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
|
|
 |
|
collection JR
Jacob Roschy
|
|
JK Prüfkarte Röhrenprüfgerät W 18N
Jörg Kulbe
|
|
SEL Handbuch 1964
Peter Hoddow
|
|
 |