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ID = 77840
United States of America (USA)
Brand: Amperex; New York
Tube type:  Transmitter Tetrode, liquid-cooling 
Identical to AX-10328-1 = 5186

Was used by Industrial
Filament Vf 7.5 Volts / If 17 Ampere / Indirect

Power tetrode designed to be used as oil-immersed very high voltage switch in medical X-ray sources.

  • 1.5 kW power dissipation
  • 100 kV plate voltage
  • 5 A cathode current

The sample in the photos, athough with Amperex badge, is made in France.

Dimensions (WHD)
incl. pins / tip
130 x 210 x mm / 5.12 x 8.27 x inch
Weight 5200 g / 183.42 oz
Information source - - Manufacturers Literature   
AX-10328-1: Private collection
Emilio Ciardiello

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