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MS/Pen_7-pin

Information - Help 
ID = 43004
       
Country:
Great Britain (UK)
Brand: Cossor, A.C.; London
Tube type:  Vacuum Pentode   RF/IF-Stage 
Identical to MS/Pen_7-pin
Similar Tubes
Other base:
  MS/Pen

Base British-7-Pin, old (M7A)
Filament Vf 4 Volts / If 1 Ampere / Indirect / Parallel, (AC/DC)
Information source Taschenbuch zum Röhren-Codex 1948/49   
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mspen.jpg
MS/Pen_7-pin: RFJ
Roy Johnson

 
158_11.png
MS/Pen_7-pin: Telefunken Werkstattbuch
Wolfgang Bauer

 

from Just Qvigstad

Usage in Models 1= 1935??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1


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