Antique radios, Old Time Radios

12SK7GT

ID = 2823

Country:

United States of America (USA)

Brand:	Common type USA tube/semicond. Common type USA tube/semicond. Adzam (tubes made by MBLE, Belgium) Haltron (brand), Hall Electric Ltd.; London Mullard Radio Valve Co. Ltd.; Fivre - tubes; Milano (MI) Airline, Super-Airline, Wards (tubes) - see also Montgomery Ward; Chicago, IL Hytron; Salem (MA) RCA (RCA Victor Co. Inc.); New York (NY) Sylvania (Hygrade, GTE, Nilco); Emporium (PA)
Developer:	Hytron; Salem (MA)
Tube type:	Vacuum Pentode RF/IF-Stage Controlling (mu)

Identical to

12SK7GT = CV544 = 12SK7GT/G

Similar Tubes

Other shape (e.g. bulb type):

12SK7

Normally replaceable-slightly different:

12K3P

Other base:

14A7

First Source (s)

01.May.1939 : Electron Tube Registration List

Predecessor Tubes

12K7G 12K7GT

Successor Tubes

14A7 12BA6

Base

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

Was used by

Radio/TV-reception etc.

Filament

Vf 12.6 Volts / If 0.15 Ampere / Indirect / Specified voltage AND current AC/DC

Description

Plus or minus 90 VDC max insulation between heater and cathode by Tung-Sol spec sheet.

Tube prices

3 Tube prices (visible for members only)

Information source

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


12SK7GT: RTT Schwandt Günther Stabe † 19.8.20 More ...	Just Qvigstad	12SK7GT: Sylvania Technical Manual Peter Hoddow More ...

Usage in Models

1= 1939?? ; 1= 1939? ; 12= 1939 ; 33= 1940?? ; 15= 1940? ; 71= 1940 ; 9= 1941?? ; 24= 1941? ; 65= 1941 ; 12= 1942?? ; 24= 1942? ; 22= 1942 ; 1= 1943 ; 1= 1944?? ; 1= 1945?? ; 8= 1945? ; 10= 1945 ; 18= 1946?? ; 43= 1946? ; 125= 1946 ; 30= 1947?? ; 16= 1947? ; 74= 1947 ; 4= 1948?? ; 7= 1948? ; 29= 1948 ; 6= 1949?? ; 4= 1949? ; 24= 1949 ; 35= 1950?? ; 5= 1950? ; 15= 1950 ; 14= 1951?? ; 7= 1951? ; 5= 1951 ; 3= 1952?? ; 4= 1952? ; 5= 1952 ; 2= 1954? ; 2= 1955?? ; 2= 1955 ; 1= 1956?? ; 1= 1956? ; 1= 1959 ; 2= 1960? ; 1= 9999

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):795

Collection of

12SK7GT

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12SK7GT

Common type USA tube/semicond.

Collection of