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ID = 17429
Tube type:  Reflex Klystron 
Identical to 2K28 = TH2228
Similar Tubes
Normally replaceable-slightly different:
  CV1768 ; QK26 ; RK707B
Other class quality (otherwise equal):
Multiple differences or of other kind:
  CV1892 ; QK85

Base Octal (Int.Octal, IO) K8A, USA 1935
Was used by Radar
Filament Vf 6.3 Volts / If 0.66 Ampere / Indirect

External cavity reflex klystron; 125mW output from 1200 to 3750MHz. Similar to 707B with shorter glass body; immproved temperature compensation.
Made by Raytheon, Thomson and WE.

Tube prices 4 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
-- Original-techn. papers.   Klystrons and Microwave Triodes, MIT vol.7
Tube Lore (I)

2k28_pin.png 2K28
Emilio Ciardiello

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Just Qvigstad
2K28: Raytheon Manual
Heinz Höger

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Usage in Models 3= 1950??

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):3

Collection of



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