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CV1490

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ID = 27615
       
 
   
Tube type:  Pulse magnetron 
Identical to CV1490 = CV56D

Was used by Radar
Filament Vf 6 Volts / If 1.25 Ampere / Half indirect
Description

This title replaces the CV56D.

CV56D was a frequency selection of CV56. At the beginning the selection was performed measuring the frequency of each sealed unit on a test bench and then adding the proper suffix, A to D, to the CV56 code. When the sealing process was automated, a special machine tuned the magnetron to the wanted frequency, by bending the strapping jumpers before the sealing-off. It was decided then to assign a different title to each possible frequency range.

Same specs of CV56D.

 

 

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