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ID = 31986
Brand: Common type Europe tube/semicond.
Tube type:  TWT, Travelling wave tube   SHF/EHF (>3 GHz) 
Identical to YH1090

Base Wires only.
Filament Vf 6.3 Volts / If 1 Ampere / Indirect
Description With periodic permanent magnet mount.
3.4 to 4.2 GHz, Pout =25W at mid band. Gain 42dB. 
Dimensions (WHD)
incl. pins / tip
75 x 65 x 311 mm / 2.95 x 2.56 x 12.24 inch
Weight 60 g / 2.12 oz
Information source - - Manufacturers Literature   
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YH1090: AH eigene Sammlung
Alexander Hofer

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YH1090: Manufacturer's Literature
Emilio Ciardiello

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