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1R5

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ID = 428
       
Country:
Worldwide
Brand:
Tube type:  Pentagrid-Converter (Heptode)   Frequency converter   Controlling (mu) 
Identical to 1R5 = DK91 = 1А1П = VT-171 = X17 = 1A2_1R5
Similar Tubes
Other class quality (otherwise equal):
  CV782
Heater different:
  1H33 ; 1R5T ; 400A_WE ; 400B_WE
Other base:
  1R5_Loktal ; VT-171A
First year 1940 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
13.Nov.1939 : Tube Lore
Predecessor Tubes 1A7G   1LA6  

Base Miniatur-7-Pin-Base B7G, USA 1940
Filament Vf 1.4 Volts / If 0.05 Ampere / Direct / Battery =
Description Typ Va=90, Ia=1.6mA, gc=0.3. (Ferranti Literature) 
Tube prices 3 Tube prices (visible for members only)
Literature Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature
  1r5.png
  1R5: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
 
1r5_8805.jpg
1R5
Karl-Heinz Schmehr

 
595.png
1R5: Telefunken Werkstattbuch
Wolfgang Bauer

 
1r5_daten.png
1R5: Brimar Manual No. 7
Daniel Consales


Usage in Models 1= 1939? ; 1= 1940?? ; 3= 1940? ; 21= 1940 ; 7= 1941?? ; 12= 1941? ; 34= 1941 ; 3= 1942?? ; 9= 1942? ; 15= 1942 ; 1= 1943?? ; 3= 1943? ; 2= 1943 ; 1= 1944? ; 1= 1944 ; 2= 1945?? ; 7= 1945 ; 3= 1946?? ; 8= 1946? ; 70= 1946 ; 5= 1947?? ; 16= 1947? ; 166= 1947 ; 14= 1948?? ; 29= 1948? ; 197= 1948 ; 13= 1949?? ; 16= 1949? ; 174= 1949 ; 64= 1950?? ; 35= 1950? ; 146= 1950 ; 39= 1951?? ; 22= 1951? ; 142= 1951 ; 33= 1952?? ; 39= 1952? ; 104= 1952 ; 12= 1953?? ; 61= 1953? ; 118= 1953 ; 10= 1954?? ; 88= 1954? ; 125= 1954 ; 40= 1955?? ; 95= 1955? ; 84= 1955 ; 5= 1956?? ; 74= 1956? ; 76= 1956 ; 3= 1957?? ; 60= 1957? ; 23= 1957 ; 5= 1958?? ; 2= 1958? ; 20= 1958 ; 2= 1959?? ; 3= 1959? ; 45= 1959 ; 5= 1960?? ; 1= 1960? ; 7= 1960 ; 1= 1961 ; 1= 1962?? ; 1= 1968?? ; 1= 1969?? ; 4= 9999

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2430


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