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E699

Information - Help 
ID = 85092
       
Country:
Great Britain (UK)
Brand: MO Valve Co. Ltd.; GB
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Double Diode-Pentode   Universal 
Identical to E699
Similar Tubes
Normally replaceable-slightly different:
  2B7

Base 7-Pin-Base U7A = small, old, USA Top contact with a cap.
Was used by Prototype only, no series built
Filament Vf 2.5 Volts / If 0.8 Ampere / Indirect
Description

Experimental. DD.HF.Pen. As RCA 2B7. Developed at the Hirst Reaearch Centre of GEC.

 
Information source -- Collector info (Sammler)   Undated list of experimental MOV tubes.

2b7~~5.png E699: Fin Stewart
Fin Stewart


Just Qvigstad
 

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