Antique radios, Old Time Radios
EF21_9pin
|
Country:
Netherlands
|
|
| Identical to |
EF21_9pin
|
| Similar
Tubes |
Other base:
EF21
; EF22
|
| Predecessor Tubes |
EF9
|
|
Successor Tubes
|
1941
EF22
|
| Base |
Loctal-9-Pin (B9G)
|
| Filament |
Vf 6.3 Volts / If 0.2 Ampere / Indirect / Specified voltage AND current AC/DC |
| Description |
The Philips 21- "Key Base" tubes were initially designed in 1940 with the 9-pin base B9G like the EF50. The later series production from 1942 on however was changed to the 8-pin Locktal-base B8G designed by Sylvania.
Text in other
languages (may
differ)
|
| Tube prices |
1 Tube prices (visible for members
only)
|
| Information source |
- - Manufacturers Literature
|
|
EF21_9pin: original Philips documents
Jacob Roschy
More ...
|
Just Qvigstad
|
EF21_9pin: original Philips documents
Jacob Roschy
More ...
|
Collection of
|
|
|
|
You reach this tube or valve page from a search
after clicking the "tubes" tab or by clicking a tube
on a radio model page. You will find thousands
of tubes or valves with interesting links. You
even can look up radio models with a certain tube
line up.
[rmxtube-en]
| Data Compliance |
More Information |
|
|
|
