Antique radios, Old Time Radios

CY31

ID = 7695

Country:

Great Britain (UK)

Brand:	Mullard Radio Valve Co. Ltd.;
Tube type:	Half-Wave Vacuum Rectifier Power-supply

Identical to

CY31 = OM1 = CV1402

Similar Tubes

Other base:

CY1

First year

1938 -- Collector info (Sammler)

Base

Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Ui)

Filament

Vf 20 Volts / If 0.2 Ampere / Indirect / Specified current AC/DC ~ = (Series working)

Tube prices

3 Tube prices (visible for members only)

Information source

Taschenbuch zum Röhren-Codex 1948/49

CY31: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse Karel De Reus †
CY31: RTT 1974 (Franzis) 13. Auflage Martin Renz More ...	Just Qvigstad	CY31: Roy Johnson Anonymous 1 Collector More ...

Usage in Models

1= 1939 ; 4= 1940?? ; 1= 1940? ; 5= 1940 ; 2= 1941?? ; 1= 1941? ; 3= 1941 ; 1= 1944?? ; 2= 1945 ; 1= 1946?? ; 3= 1946? ; 19= 1946 ; 3= 1947?? ; 8= 1947? ; 26= 1947 ; 3= 1948?? ; 4= 1948? ; 7= 1948 ; 1= 1949?? ; 1= 1949? ; 6= 1949 ; 2= 1950?? ; 1= 1950? ; 1= 1951 ; 1= 1956??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):107

Collection of

Antonio Varrica (I)

Jose Antonio Gonzalez-Ruiz (E)

Tomasz Szczesniak (PL)

Gaetano Di Bella (I)

Frank Cuffe (IRL)

Karlheinz Fischer (D)

CY31

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