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N30

Information - Help 
ID = 19568
       
Country:
Great Britain (UK)
Brand: MO Valve Co. Ltd.; GB
Tube type:  Screen-grid Tetrode   Power/Output 
Identical to N30
Similar Tubes
Normally replaceable-slightly different:
  PTA
Multiple differences or of other kind:
  PT4

Base British-7-Pin, old (M7A)
Filament Vf 13 Volts / If 0.3 Ampere / Indirect / Series, AC/DC
Description Pa <8W, Pout 3.2W at Va=Vs=250V and Ia=32mA

Is this tube identical with the N30/G ? 
Text in other languages (may differ)

Literature The Wireless World, London (WW, 79)   1934 Data booklet.PT4
 
marconi_n30.jpg
N30: Ebay Seller billp Item 270962673411
Franz Scharner

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

 

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


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