radiomuseum.org

 
Please click your language flag. Bitte Sprachflagge klicken.

PT4

Information - Help 
ID = 3850
       
Country:
Great Britain (UK)
Brand: MO Valve Co. Ltd.; GB
Tube type:  Vacuum Pentode   Power/Output 
Identical to PT4
Similar Tubes
Normally replaceable-slightly different:
  4PenAAC ; 4PenM ; PT4N ; Pen4VB ; PenA4
Multiple differences or of other kind:
  N30

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Foo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1.1 Ampere / Direct / Parallel, (AC/DC)
Description

The tube was re-designed in 1932 to have a heater current of 1A.

 
Literature Taschenbuch zum Röhren-Codex 1948/49   
 
pt4.jpg
PT4: Auction site Marktplaats.
John Koster

 
pt4_so.png
PT4: rtt
Michael Schlör

 
pt4_kennlinie.png
PT4: Marconi Datasheet
Georg Richter


Usage in Models 1= 1930 ; 1= 1931?? ; 13= 1931 ; 2= 1932? ; 8= 1932 ; 2= 1933 ; 1= 1935?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):28


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]
  
rmXorg