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Information - Help 
ID = 20516
Tube type:  Beam Power Tube   VHF 
Identical to QZ06-20
Similar Tubes
Normally replaceable-slightly different:
  8042 ; QC05/35

Base Octal (Int.Octal, IO) K8A, USA 1935 Top contact with a cap.
Was used by Transmittertube (Radio)
Filament Vf 1.6 Volts / If 3.2 Ampere / Direct / Battery =

Quick heating cathode to give 70% power in 0.5s. Pa <25W

Dimensions (WHD)
incl. pins / tip
40 x 96 x mm / 1.57 x 3.78 x inch
Weight 59 g / 2.08 oz
Information source Röhren-Taschen-Tabelle, (Franzis RTT)   
- - Manufacturers Literature   
QZ06-20: AH eigene Sammlung
Alexander Hofer

QZ06-20: RTT Schwandt
Günther Stabe † 19.8.20

QZ06-20: Manufacturer's Literature
Emilio Ciardiello

from Just Qvigstad

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