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ID = 20513
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Tube type:  Beam Power Tube   beam power   VHF 
Identical to QV04-7 = CV309
Similar Tubes
Normally replaceable-slightly different:
  QE04/10 ; QV04-7R

Base Loctal-9-Pin (B9G)
Was used by Transmittertube (Radio)
Filament Vf 6.3 Volts / If 0.6 Ampere / Indirect / Specified voltage AC/DC

Pa<7.5W. Full power output <30MHz, reduced power to 150MHz. Carrier output 7.7W.

Information source Röhren-Taschen-Tabelle, (Franzis RTT)   
- - Manufacturers Literature   
QV04-7: My tubes
Anonymous 413 Collector

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QV04-7: RTT Schwandt
Günther Stabe † 19.8.20

QV04-7: Manufacturer's Literature
Emilio Ciardiello

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from Just Qvigstad

Usage in Models 1= 1963

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

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