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ID = 21157
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Pulse magnetron   SHF/EHF (>3 GHz) 
Identical to 2J51A = YJ1360 = CV5134
Similar Tubes
Normally replaceable-slightly different:
  2J51 ; 2J51AH ; CV3560
Multiple differences or of other kind:
Successor Tubes 2J55   2J56  

Was used by Radar
Filament Vf 6.3 Volts / If 1 Ampere / Half indirect

Forced Air Cooled X-band packaged Magnetron. Intended as replacement for 2J21, 725A and all their frequency variants. Power range can be set removing one or more of the factory supplied magnetic shunts.

  • Peak output 50 kW typical, all shunta removed
  • Mechanically tunable 8.5 to 9.6 GHz.

Made by WE, Raytheon, GEC, Thomson, Philips and its related marks.

Information source Tube Lore (I)   
2J51A: Private collection
Emilio Ciardiello

2J51A: Telefunken Taschenbuch 1971
Anonymous 15 Collector

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