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ID = 4704
Brand: Fivre - tubes; Milano (MI)
Tube type:  Vacuum Pentode 
Identical to 6C9_Fivre
Similar Tubes
Other base and data slightly different:
  1851 ; 1851GT

Base SPECIAL TUBEBASE in general (Codex=Octal)
Filament Vf 6.3 Volts / If 0.45 Ampere / Indirect / Parallel, (AC/DC)

The 6C9 made by Fivre, a Pentode, should not be confused with the 6C9 from the USA, a Twin-Tetrode or the 6C9 from Great Britain, a Triode-Heptode, which we call 6C9_UK.

It's seems to be a 1851 with an other base because the data are very similar.

Dimensions (WHD)
incl. pins / tip
x 59 x 30 mm / x 2.32 x 1.18 inch
Information source Essential Characteristics, GE 1973   Ratheiser Röhrenhandbuch 1948
- - Manufacturers Literature   
  6C9_Fivre: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Michael Schlör
6C9_Fivre: Elettronica, Maggio 1947
Tonino Giagnacovo

6C9_Fivre: catalogo FIVRE
Tonino Giagnacovo

6C9_Fivre: catalogo FIVRE
Tonino Giagnacovo

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