Antique radios, Old Time Radios

1R5

ID = 428

Country:

Worldwide

Brand:	Common type Worldwide tube/semicond. Common type Worldwide tube/semicond. Westinghouse El. & Mfg. Co. - see also Canadian W.
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 (I)

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)

Information source

Essential Characteristics, GE 1973
Taschenbuch zum Röhren-Codex 1948/49
- - Manufacturers Literature

1R5: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse Karel De Reus †
1R5: Telefunken Werkstattbuch Wolfgang Bauer More ...	Just Qvigstad	1R5: Brimar Manual No. 7 Daniel Consales More ...

Usage in Models

1= 1939? ; 1= 1940?? ; 3= 1940? ; 21= 1940 ; 7= 1941?? ; 13= 1941? ; 34= 1941 ; 3= 1942?? ; 10= 1942? ; 15= 1942 ; 1= 1943?? ; 4= 1943? ; 2= 1943 ; 1= 1944? ; 1= 1944 ; 2= 1945?? ; 1= 1945? ; 7= 1945 ; 3= 1946?? ; 10= 1946? ; 70= 1946 ; 3= 1947?? ; 22= 1947? ; 173= 1947 ; 14= 1948?? ; 44= 1948? ; 200= 1948 ; 14= 1949?? ; 18= 1949? ; 170= 1949 ; 65= 1950?? ; 41= 1950? ; 155= 1950 ; 36= 1951?? ; 51= 1951? ; 125= 1951 ; 36= 1952?? ; 60= 1952? ; 92= 1952 ; 11= 1953?? ; 73= 1953? ; 125= 1953 ; 10= 1954?? ; 94= 1954? ; 125= 1954 ; 52= 1955?? ; 115= 1955? ; 75= 1955 ; 12= 1956?? ; 78= 1956? ; 79= 1956 ; 3= 1957?? ; 72= 1957? ; 27= 1957 ; 6= 1958?? ; 12= 1958? ; 24= 1958 ; 2= 1959?? ; 2= 1959? ; 43= 1959 ; 5= 1960?? ; 7= 1960 ; 2= 1961? ; 1= 1961 ; 1= 1963? ; 1= 1968?? ; 1= 1969?? ; 1= 9999? ; 6= 9999

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2594

Literature "Radiotronics" No. 133 | 1948-09

Collection of

1R5

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1R5

Common type Worldwide tube/semicond.

Collection of