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ID = 27745
Great Britain (UK)
Brand: Common type Great Britain tube/semicond.
Developer: EMI; Hayes, Middlesex 
Tube type:  Reflex Klystron   SHF/EHF (>3 GHz) 
Identical to CV129
Similar Tubes
Normally replaceable-slightly different:
Predecessor Tubes CV87   KRN2  

Base Octal (Int.Octal, IO) K8A, USA 1935 Top contact with a cap.
Was used by Radar
Filament Vf 4 Volts / If 1.4 Ampere / Indirect

X Band Reflex Klystron. Tuning range overlaps with CV223.

1.6kV resonator voltage, -300 to -550V reflector voltage, 75mW out power.

Information source - - Manufacturers Literature   
CV129: RFJ
Roy Johnson

CV129: Manufacturer's Literature
Emilio Ciardiello

CV129: Manufacturer's Literature
Emilio Ciardiello

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