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ID = 4317
Tube type:  Double Pentode 
Identical to 3BU8 = 3GS8
Similar Tubes
Heater different:
  4BU8 ; 4GS8 ; 6BU8

Base Noval, B9A
Filament Vf 3.15 Volts / If 0.6 Ampere / Indirect
Tube prices 2 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
  3BU8: Personal file
Antonio Rabitti
3BU8: From own collection
David Erali

3BU8: RCA Tube Manual
Peter Hoddow

3BU8: RCA Tube Manual
Peter Hoddow

from Just Qvigstad

Usage in Models 8= 1955 ; 16= 1956 ; 9= 1957? ; 39= 1957 ; 12= 1958 ; 46= 1959? ; 21= 1959 ; 96= 1960

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):247

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