radiomuseum.org

725A

Informazioni - Aiuto 
ID = 17470
       
 
   
Tipo:  Magnetron a impulsi   SHF/EHF (>3 GHz) 
Identico a 725A = CV722
Valvole simili
Sostituita normalmente - piccola diff.:
  CV748
Multiple differences or of other kind:
  2J51A ; CV214
Sostituisce i modelli 2J21A   2J21  
Evoluzioni MX52   CV208   730A   2J53   CV208_prototype   CV209  

Utilizzata per Radar
Filamento Vf 6.3 Volt / If 1 Ampere / Half indirect
Descrizione

Fixed frequency, 9375MHz, magnetron capable of delivering 60KW pulse. Flanged waveguide parallel to the cathode axis.
One of the first X-band magnetron produced in large quantities since WWII. 725A was developed by Bell Telephone and WE, scaling down the S-band design and increasing the cavity number to 12, to operate with relatively small permanent magnets. Production started in the late 1942. 89,480 units of this magnetron were supplied to British Empire under the Lend-Lease law.
Widely used in several aircraft radar equipment, such as AN/APS-3, AN/APS-4 and AN/APS-15.
Several manufacturers, including Amperex, Mullard, Northern Electric, Philips, Raytheon, Toshiba, Valvo and Western Electric.

 
Quotazioni 1 Quotazioni (visibili solo per gli associati)
Bibliografia Taschenbuch zum Röhren-Codex 1948/49   
-- Original prospect or advert   Callick, Metres to Microwaves
- - Manufacturers Literature
Tube Lore (I)

725a_01.png
725A: Manufacturer's Literature
Emilio Ciardiello

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Utilizzo nei modelli 1= 1943?? ; 1= 1949

Numero totale di modelli di Radiomuseum.org che utilizzano questa valvola:2


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725a_w_magn_1.jpg

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