radiomuseum.org
Please click your language flag. Bitte Sprachflagge klicken.

N30

Information - Help 
ID = 19568
       
Country:
Great Britain (UK)
Brand:
Developer: Marconi-Osram - (Valves/Tubes); GB 
Tube type:  Screen-grid Tetrode   Power/Output 
Identical to N30
Similar Tubes
Other shape (e.g. bulb type):
  N30/G
Normally replaceable-slightly different:
  PTA
Multiple differences or of other kind:
  PT4
First year 1934 -- Original-techn. papers. 70 Years of Radio Valves

Base British-7-Pin, old (M7A)
Was used by Radio/TV-reception etc.
Filament Vf 13 Volts / If 0.3 Ampere / Indirect / Specified current AC/DC ~ = (Series working)
Description

Pa <8W, Pout 3.2W at Va=Vs=250V and Ia=32mA

Same as N30/G but Catkin version.

 
Text in other languages (may differ)
Information source Wireless World (The), London (WW, 79)   1934 Data booklet.PT4
The Radio Trade Directory USA 1925   p. 152, 227 & 333
History of the British Radio Valve to 1940
The Saga of Marconi Osram Valve

s_387_g_2.gif N30: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20


Just Qvigstad
Usage in Models 17= 1934 ; 1= 1935? ; 3= 1935 ; 1= 1936?? ; 2= 1936

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):24

Collection of

 
marconi_n30.jpg

N30
 

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