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W61

Information - Help 
ID = 18706
       
Country:
Great Britain (UK)
Brand: Osram-Valves GB (not MO-Valves)
Tube type:  Vacuum Pentode   RF/IF-Stage 
Identical to W61
Similar Tubes
Other shape (e.g. bulb type):
  KTW61

Base Octal (Int.Octal, IO) K8A, USA 1935
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect
Description Variable mu screened pentode, intended for use in RF amplifier stages. Plug-in replacement for KTW61 
Information source - - Manufacturers Literature   
 
w61.jpg
W61: MS
Martin Steyer

More ...
 
w61_so.png
W61: rtt
Michael Schlör

 
w61_1.png
W61: Manufacturer's Literature
Emilio Ciardiello

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from Just Qvigstad

Usage in Models 1= 1947?? ; 1= 1947 ; 4= 1949 ; 4= 1950

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):10


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