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50B5

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ID = 3120
       
Country:
United States of America (USA)
Brand:
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Beam Power Tube   Power/Output 
Identical to 50B5 = A4388
Similar Tubes
Normally replaceable-slightly different:
  50F2
Different connections:
  50C5
First Source (s)
25.Oct.1945 : Electron Tube Registration List
Predecessor Tubes 50L6G  
Base Miniatur-7-Pin-Base B7G, USA 1940 (Codex=Zib)
Was used by Radio/TV-reception etc.
Filament Vf 50 Volts / If 0.15 Ampere / Indirect / Specified current AC/DC ~ = (Series working)
Description

Typical operation: 110 V plate and screen grid, 49 mA plate current, -7.5 V G1. 1.9 W across 2500 ohms.

Max peak heater to cathode insulation +/- 90 V in the early release. Insulation uprated to 200 V starting from May 1957.

* RMA/JEDEC register record available by courtesy of TCA* - Full record is downloadable here.

 
Tube prices 5 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature
50b5.png
50B5: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
50b5_so.png 50B5: ARRL Handbook 1972
Anonymous 10 Collector
More ...
Just Qvigstad 		50b5_techdat01.png
50B5: Sylvania Technical Manual
Peter Hoddow
More ...
Usage in Models 1= 1940?? ; 6= 1946?? ; 27= 1946? ; 65= 1946 ; 2= 1947?? ; 20= 1947? ; 111= 1947 ; 9= 1948?? ; 49= 1948? ; 131= 1948 ; 15= 1949?? ; 30= 1949? ; 37= 1949 ; 71= 1950?? ; 30= 1950? ; 40= 1950 ; 29= 1951?? ; 29= 1951? ; 24= 1951 ; 17= 1952?? ; 22= 1952? ; 18= 1952 ; 12= 1953?? ; 15= 1953? ; 23= 1953 ; 5= 1954?? ; 12= 1954? ; 22= 1954 ; 19= 1955?? ; 11= 1955? ; 33= 1955 ; 5= 1956?? ; 2= 1956? ; 22= 1956 ; 6= 1957?? ; 1= 1957? ; 14= 1957 ; 8= 1958?? ; 1= 1958? ; 6= 1958 ; 5= 1959?? ; 8= 1959? ; 11= 1959 ; 18= 1960?? ; 2= 1960? ; 1= 1960 ; 1= 1961?? ; 1= 1961? ; 1= 1961 ; 2= 1962?? ; 1= 1962 ; 2= 1963? ; 2= 1963 ; 3= 1964?? ; 3= 1964 ; 3= 1965?? ; 3= 1965? ; 1= 1966 ; 1= 1970?? ; 4= 9999
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1073

Collection of

Hermann Fleischanderl (A)
Museum Roggenhofer (A)
Robert Gillespie (USA)
David Erali (USA)
Bruce Morgenstern (CDN)
George Papaiz (CDN)
Aldo Patriarca (CH)
Christian Schaufelberger (CH)
Patrice Follet (F)
Patrice Zeissloff (F)
Franco Antolini (I)
Marcello Astolfi (I)
Giorgio Busletta (I)
Alberto Ammendola (I)
Massimo Pedrina (I)
Georges Werts (B)
Hannu Alho (FIN)
Robert Meszaros (H)
Danko Tkalec (HR)
Mario Coelho (P)
Tomasz Szczesniak (PL)
Peter Pfeiffer (D)
Ralph Oppelt † 3.4.24 (D)
Ulrich Fieseler (D)
Documents about this component
  RMA registration record covering the RCA tube types 6AT6, 6AU6, 6BA6, 6BE6, 12AT6, 12BA6, 12BE6, 35W4 and 50B5 2327 KB
 
50b5~~5.jpg

50B5
 
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