Antique radios, Old Time Radios

12K8

ID = 2632

Country:

United States of America (USA)

Brand:	Common type USA tube/semicond.
Tube type:	Triode-Hexode Frequency converter Controlling (mu)

Identical to

12K8 = CV703

Similar Tubes

Other shape (e.g. bulb type):

12K8GT

Other class quality (otherwise equal):

12K8Y

Heater different:

6K8

First year

16.Oct.1939 Electron Tube Registration List

Predecessor Tubes

12A8G

Successor Tubes

14S7

Base

Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Ue) Top contact with a cap.

Was used by

Radio/TV-reception etc.

Filament

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

Tube prices

4 Tube prices (visible for members only)

Information source

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

12K8: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse Karel De Reus †
12K8 Emilio Ciardiello More ...	Just Qvigstad	12K8: Original GENERAL ELECTRIC Josef Pilz More ...

Usage in Models

1= 1939? ; 2= 1939 ; 2= 1940?? ; 2= 1940? ; 2= 1940 ; 2= 1941?? ; 3= 1941? ; 3= 1941 ; 1= 1942?? ; 1= 1942? ; 6= 1943 ; 1= 1944 ; 1= 1945 ; 1= 1946? ; 1= 1947?? ; 4= 1947 ; 4= 1948?? ; 1= 1948 ; 2= 1949? ; 2= 1949 ; 9= 1950?? ; 3= 1950? ; 1= 1952??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):55

Collection of

Antonio Rabitti (BR)

Georges Werts (B)

Karlheinz Fischer (D)

Roland Biesler (D)

Collection of a member from FIN

Collection of a member from D

Justo Puertas-Paule (E)

Collection of a member from FIN

12K8

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