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ID = 4789
United States of America (USA)
Tube type:  Damper, booster, flyback diode 
Identical to 6DW4
Similar Tubes
Normally replaceable-slightly different:
  6DW4B ; R-DW4
Multiple differences or of other kind:

Base Novar, B9E = bigger than Noval, USA 1959
Filament Vf 6.3 Volts / If 1.2 Ampere / Indirect / Specified voltage AC/DC
Tube prices 1 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
  6DW4: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Anonymous 10 Collector
6DW4: Eigene Sammlung
Siegfried Neumann

More ...
6DW4: RTT Schwandt
Günther Stabe † 19.8.20

6DW4: RCA Receiving Tube Manual
Heinz Höger

from Just Qvigstad

Usage in Models 20= 1964? ; 45= 1964 ; 29= 1967

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):94

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