Antique radios, Old Time Radios
25-450
Country:
Netherlands
|
|
Identical to |
25-450
|
Similar
Tubes |
Normally replaceable-slightly different:
F704
; T730
; W704
|
Production stop |
Feb.1938 |
Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
|
Filament |
Vf 7.5 Volts / If 1.25 Ampere / Direct |
Description |
This is a tube from the Thermion Technica series of power amplifiers and power rectifiers.
|
Information source |
- - Manufacturers Literature 1-9-1935
- - -
- - -
- - -
|
|
25-450: rtt
Anonymous 10 Collector
|
Just Qvigstad
|
25-450: own collection
Peter den Boer
|
|
|
|
|
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]