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ID = 18686
Tube type:  Half-Wave Vacuum Rectifier   Power-supply 
Identical to 6U4
Similar Tubes
Heater different:

Base Octal (Int.Octal, IO) K8A, USA 1935
Filament Vf 6.3 Volts / If 1.2 Ampere / Indirect /
Tube prices 0 Tube prices (visible for members only)

  6U4: Courtesy Bureau Belper (De Muiderkring, Bussum)
Michael Schlör
6U4: RTT Schwandt
Günther Stabe


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