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VR123

Information - Help 
ID = 8885
       
Country:
Great Britain (UK)
Brand: Common type Great Britain tube/semicond.
Tube type:  HEXODE   RF/IF-Stage   Controlling (mu) 
Identical to VR123 = CV1123 = EF8

Base Europe side contact P8A (Au P, 8SC) (Codex=Sa) Top contact with a cap.
Filament Vf 6.3 Volts / If 0.2 Ampere / Indirect
Description Four-grid low-noise RF amplifier. An extra grid, connected to the cathode and aligned with the screen grid, bunches electrons to reach the anode passing through the turns of the screen itself. 
Information source Taschenbuch zum Röhren-Codex 1948/49   
-- Original-techn. papers.   
 
vr123.jpg
VR123: Own collection.
Stuart Irwin

 
ef8_1.png
VR123: Manufacturer's Literature
Emilio Ciardiello

 

from Just Qvigstad


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