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VT150_GPO

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ID = 65585
       
Country:
Great Britain (UK)
Brand: Mazda = Valve (Tube) brand GB (see also France)
Developer: Mazda = Valve (Tube) brand GB (see also France) 
Tube type:  Vacuum Pentode   RF/IF-Stage 
  Ca. 1925 up to 1945 very rare. ***
Identical to VT150_GPO = SP41 = CV1699
Similar Tubes
Normally replaceable-slightly different:
  CV1700 ; VT150A_GPO

Base Octal (Int.Octal, IO) K8A, USA 1935 Top contact with a cap.
Was used by Telephony
Filament Vf 4 Volts / If 0.95 Ampere / Indirect / Parallel / series AC/DC
Description

Tube made with metal paint

 
Information source -- Collector info (Sammler)   
 
sp41~~1.png
VT150_GPO: Fin Stewart
Fin Stewart

 

from Just Qvigstad

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