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ID = 9251
United States of America (USA)
Brand: Western Electric Company Inc.; New York (NY)
Tube type:  Pulse magnetron   UHF 
Identical to 700A = CV689
Similar Tubes
Multiple differences or of other kind:
Successor Tubes 4J42  

Was used by Radar
Filament Vf 13.5 Volts / If 1.85 Ampere / Indirect

External magnet 6-cavity unstrapped magnetron. 12KV, 10A, 650 gauss, 40KW peak pulse. 715MHz +/- 5MHz. Coaxial output.

The first multicavity magnetron to go into production in America, for use in the transmitter of MK 3 and MK 4 radar sets. The pulse modulator used a couple of 701A. The TR box used the 702A TR switch mounted in the center of a half-wavelength coaxial line. The receiver used two 316As as local oscillator and as first dtector. Later replaced by GL-446.

Replaced by tunable 4J42.

Information source Taschenbuch zum Röhren-Codex 1948/49   
Tube Lore (I)   
- - Manufacturers Literature

Usage in Models 1= 1929

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):1


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