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B_Raytheon

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ID = 65051
       
Country:
United States of America (USA)
Brand: Raytheon Mfg. Co.; Cambridge, MA
Tube type:  Half-Wave Rectifier, inert gas filled   Power-supply 
  Ca. 1925 up to 1945 rare.
Identical to B_Raytheon
Similar Tubes
Other base:
  V70_Dario
Predecessor Tubes S_AMRAD  
Successor Tubes 1925   BR_Raytheon   BH   BA  

Base UV-Base (4 Pins+Bayonet, USA 1914 WE)
Was used by Radio/TV-reception etc.
Filament No heater
Description

Helium-filled half-wave rectifier. 350V PIV, 60mA DC.
Yr. 1927. Derived from the AMRAD S1 battery eliminator, when C.G. Smith moved from AMRAD to American Appliance Company, later Raytheon. Tube made with a brass UV base.

The tube was originated from the studies made years before by Smith on the spectrum of a blue star, Zeta Puppis, showing the presence of ionized helium. The helium-filled tube originated the name Raytheon, an euphonic neologism meaning 'light of gods', for the blue rays generated into operation. Another company in Indiana was claiming its priority in the name 'American Appliances Company', then on 25 October 1925 the name just proposed for the new rectifier was extended to the company.

Early productions in 1925 were run by Champion Lamp Works in Peabody, Massachusetts.

(B_rectifier we keep as a code 9 (locked off) tube)

 
Literature -- Collector info (Sammler)   Codex
-- Original-techn. papers.   The Creative Ordeal, by Otto J. Scott
 
us_raytheon_type_b_tube.jpg
B_Raytheon: A. De Poi's collection
Alessandro De Poi

 
raytheon_b_ba_bh.png
B_Raytheon: Fin Stewart
Fin Stewart

 

Usage in Models 1= 1927

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


Documents about this component
  The parallel stories of Raytheon Company and its B gaseous rectifier. 1524 KB

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