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K-7

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ID = 17756
       
 
   
Tube type:  Pulse magnetron 
Identical to K-7 = VT-257 = 2J30

Filament Vf 6.3 Volts / If 1.5 Ampere / Half indirect
Description 2860 to 2900 MHz, fixed frequency. 20KV at 30A peak (30mA average), 285KW pulse output. Forced air cooling. 
Information source Taschenbuch zum Röhren-Codex 1948/49   
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