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PT2

Information - Help 
ID = 3194
       
Country:
Great Britain (UK)
Brand: Common type Great Britain tube/semicond.
Tube type:  Vacuum Pentode   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to PT2 = KT24 = PT2K = VR118
Similar Tubes
Normally replaceable-slightly different:
  KT2
First Source (s)
Nov.1931 : The Wireless World, London (WW, 79) advertisement
Successor Tubes KT2   NR39   ARP1  

Base Europe 5-Pin (O5A, B5) (Codex=Foo)
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.2 Ampere / Direct / Battery =
Description

Va=Vg2 <150;

Typ ia=9.5mA, Ig2=1.9, Vg1= -4.5, Rload=20k, Pout= 0.5W.

Also made with 4 pin base+sidecontact.

 
Literature The Wireless World, London (WW, 79)   Nov 1934
- - Manufacturers Literature   Osram cat. 1936
 
osram_pt2__.jpg
PT2: LE
Leif Ekornrod

 
s_3_g_16.gif
PT2: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe

 
pt.2_osram.png
PT2: osram wireless guide 1931
Giuseppe Antonio Tusini


Usage in Models 1= 1929 ; 1= 1931 ; 5= 1932 ; 1= 1933?? ; 8= 1933 ; 10= 1934 ; 1= 1935? ; 3= 1935 ; 2= 1936? ; 4= 1936 ; 8= 1937

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):44


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