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25Z6

Information - Help 
ID = 1993
       
Country:
United States of America (USA)
Brand:
Tube type:  High-vacuum Rectifier 
Identical to 25Z6
Similar Tubes
Other shape (e.g. bulb type):
  25Z5MG ; 25Z6G ; 25Z6GT ; 25Z6MG
Normally replaceable-slightly different:
  NU-25Z5
Other class quality (otherwise equal):
  CV558
Heater different:
  26Z6
Other base:
  25Z5
First Source (s)
09.Dec.1935 : Electron Tube Registration List
Predecessor Tubes 25Z5  
Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Ue)
Filament Vf 25 Volts / If 0.3 Ampere / Indirect / Series, AC/DC
Description Whith two independed diodes to be used as voltage doubler or higher current.
NOT intended as full wave rectifier. [JR] 
Text in other languages (may differ)
Tube prices 1 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
  25z6.png
  25Z6: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
 
25z6_a.jpg
25Z6: scc
Christian Schaufelberger
 
317_5.png
25Z6: Telefunken Werkstattbuch
Wolfgang Bauer
 
25z6_rca_data_01.png
25Z6: Original data sheet
Michael Poll

from Just Qvigstad
Usage in Models 1= 1933?? ; 1= 1933? ; 1= 1933 ; 2= 1934?? ; 1= 1934? ; 4= 1935?? ; 2= 1935? ; 1= 1935 ; 4= 1936?? ; 11= 1936? ; 72= 1936 ; 10= 1937?? ; 10= 1937? ; 54= 1937 ; 11= 1938?? ; 8= 1938? ; 90= 1938 ; 21= 1939?? ; 22= 1939? ; 88= 1939 ; 18= 1940?? ; 5= 1940? ; 48= 1940 ; 3= 1941?? ; 5= 1941? ; 18= 1941 ; 11= 1942?? ; 6= 1942? ; 3= 1942 ; 1= 1943?? ; 2= 1943? ; 1= 1944?? ; 4= 1944 ; 8= 1945?? ; 3= 1945 ; 7= 1946?? ; 2= 1946? ; 10= 1946 ; 11= 1947?? ; 1= 1947? ; 16= 1947 ; 3= 1948?? ; 2= 1948? ; 9= 1948 ; 1= 1949?? ; 6= 1949? ; 4= 1949 ; 25= 1950?? ; 2= 1950? ; 5= 1950 ; 2= 1951?? ; 2= 1951? ; 6= 1951 ; 4= 1952 ; 1= 1953 ; 2= 1954 ; 2= 1955?? ; 2= 1955 ; 1= 1957
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):676
Collection of Christian Schaufelberger (CH)
Collection of Larry Anderson (USA)
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