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ID = 70640
Brand: Zenith; Monza (Italy)
Tube type:  Vacuum Pentode   Power/Output 
Identical to TU415_4pin = B443_4pin
Similar Tubes
Other base:
  B443 ; TU415

Base Europe 4-Pin B4 + side contact Sidecontact.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.15 Ampere / Direct / Specified voltage AC/DC
TU415_4pin: TreLe
Trev Levick

More ...
TU415_4pin: RPG Funke
Wolfgang Holtmann


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