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ID = 20507
Tube type:  Double Beam Power Tube   Power/Output 
Identical to QQV04-15
Similar Tubes
Normally replaceable-slightly different:
  832A ; QQE04/20

Base Septar (1+6 pins) 2 Top contacts.
Was used by Transmittertube (Radio)
Filament Vf 12.6 Volts / If 0.8 Ampere / Indirect / Specified voltage AC/DC

Heizfaden-Mittelanschluss, daher auch Betrieb mit 6.3 V und 1.6 A

Information source Röhren-Taschen-Tabelle, (Franzis RTT)   
QQV04-15: JDF
James Firth

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QQV04-15: RTT Schwandt
Günther Stabe † 19.8.20

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James Firth

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Collection of a member from FIN

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