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ID = 31021
United States of America (USA)
Brand: Varian; Palo Alto (CA)
Tube type:  TWT, Travelling wave tube   SHF/EHF (>3 GHz) 
Identical to VTC-6369C2

Filament Vf 6.3 Volts / If 1.7 Ampere
Description Helix TWT power amplifier, manufactured by Communications and Power Industries, USA, formerly part of Varian - microwave division.
Cooling takes place from the collector to the aluminum body, through a copper heat coupler, and then through its base surface to a suitable radiator. Beam is focused by means of many and many small permanent magnets, individually placed along the helix.
Output power: 2250W from 5,85 to 6,425 MHz with a gain of 40.
Cathode: 15KV @ 847mA;
Collector 1: 9.75KV @ 46.2mA; Collector 2: 5.25KV @ 799mA; Helix current: 1.8mA
This TWT was in use in a satellite communication relay station. 
Dimensions (WHD)
incl. pins / tip
460 x x mm / 18.11 x x inch
Weight 11000 g / 388.01 oz
Information source -- Collector info (Sammler)   
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VTC-6369C2: Private collection
Emilio Ciardiello

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