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872A

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ID = 5821
       
Country:
Worldwide
Brand:
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  High Voltage Half-Wave Mercury-Vapor Rec   Power-supply 
Identical to 872A = VT-42A = CE-872A = RK872A = GL872A
Similar Tubes
Other shape (e.g. bulb type):
  HV-972A
Normally replaceable-slightly different:
  319A ; 38172A ; 4064B ; CV642 ; VH7400
Other base:
  8008 ; 872G
Multiple differences or of other kind:
  SS-872A
Predecessor Tubes 872  
Base Jumbo 4-pin bayonet (Codex=Bz) Top contact with a cap.
Was used by Transmittertube (Radio)
Filament Vf 5 Volts / If 7.5 Ampere / Direct / Parallel, (AC/DC)
Description Work started on the development of this tube at the RCA laboratories in the summer of 1932. The type number was assigned to it early in 1933 and it was announced in April, 1933. 10KV PIV, 1.25A average at 10V peak drop. Shielded element structure. Jumbo 4-pin base. 
Tube prices 4 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature
  872a_rectifier_filter.png
  872A: Vacuum Tube Rectifier
Günter Kudicke
 
872a_philips.jpg
872A: L.N
Lars Nord
 
4at_1.png
872A
Emilio Ciardiello
 
872a.png
872A: Handbook Raytheon amateur tubes
Miguel Angel Trujillo-Rodriguez

from Just Qvigstad
Usage in Models 1= 1965?
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
Collection of a member from D
Collection of Patrice Zeissloff (F)
Collection of Karlheinz Fischer (D)
Collection of Valery Gromov (RUS)
Collection of Danko Tkalec (HR)
Collection of a member from FIN
Collection of Bruce Morgenstern (CDN)
Collection of a member from D
Collection of Etienne Flemal (B)
Collection of Lars Nord (S)
Collection of Robert Gillespie (USA)
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