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57T4635

Informazioni - Aiuto 
ID = 68443
       
Stato:
USA (Stati Uniti d'America)
Produttore: WLS (tubes), World's Largest Store - see also Sears, Roebuck & Co; Chicago, IL
Progettista: Raytheon Mfg. Co.; Cambridge, MA 
Tipo:  Rettificatrice a gas   Power-supply 
  Ca. 1925 up to 1945 rare.
Identico a 57T4635 = BH

Zoccolo UX-Base (4 Pins (2 thick, USA 1924)
Utilizzata per Radio/TV-reception etc.
Filamento
Descrizione


Pages 762 and 763 of the Fall 1929 issue of the Sears Roebuck catalog listed radio tubes with a totally new type number, and the 57T4635 is the Raytheon BH battery eliminator rectifier tube, which operates at 125mA output. The catalog pages mainly refer to Silvertone receiving tubes but also to this tube and three "Tungar" rectifier tubes.

 
Dimensioni
(LxAxP)
incl.pins/tip
x 108 x 45 mm / x 4.25 x 1.77 inch
Bibliografia Sears, Roebuck Catalogs (Silvertone)   Pages 762 and 763, Fall 1929 issue

raytheon_b_ba_bh~~2.png 57T4635: Fin Stewart
Fin Stewart


Just Qvigstad
 

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