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12AT6

Information - Help 
ID = 2948
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Double Diode-Triode   Audio Frequency 
Identical to 12AT6 = HBC90 = 12DT1
Similar Tubes
Normally replaceable-slightly different:
  12AT6A
Heater different:
  6AT6
Multiple differences or of other kind:
  14AT6
First year 1946 -- Collector info (Sammler)
First Source (s)
25.Oct.1945 : Electron Tube Registration List
Predecessor Tubes 12SQ7   12SQ7GT   14B6   12Q7GT  
Successor Tubes 1948   12AV6   12AT6A  

Base Miniatur-7-Pin-Base B7G, USA 1940 (Codex=Zk)
Was used by Radio/TV-reception etc.
Filament Vf 12.6 Volts / If 0.15 Ampere / Indirect / Parallel / series AC/DC /
Description

The RCA datasheet attached to the first registration states +/- 90 V maximum peak insulation voltage between heater and catode. The same rating confirmed in a subsequent re-registration, 446C, in February 1950.

Superseded by 12AT6A for safe operation when heater is connected in series string to AC mains.

* RMA/JEDEC register record available by courtesy of TCA * - Full record is downloadable here.

 
Tube prices 4 Tube prices (visible for members only)
Literature Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature

  12at6.png
  12AT6: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
 
12at6~~1.jpg
12AT6: My own collection
Hannu Alho

 
mi6_5.png
12AT6: RTT 1974 (Franzis) 13. Auflage
Martin Renz

 
12at6_techdat01_1.png
12AT6: RCA Tube Manual
Peter Hoddow


Usage in Models 3= 1946?? ; 24= 1946? ; 63= 1946 ; 2= 1947?? ; 22= 1947? ; 106= 1947 ; 17= 1948?? ; 35= 1948? ; 113= 1948 ; 26= 1949?? ; 27= 1949? ; 62= 1949 ; 109= 1950?? ; 50= 1950? ; 85= 1950 ; 33= 1951?? ; 49= 1951? ; 173= 1951 ; 40= 1952?? ; 57= 1952? ; 74= 1952 ; 32= 1953?? ; 49= 1953? ; 166= 1953 ; 28= 1954?? ; 91= 1954? ; 70= 1954 ; 39= 1955?? ; 53= 1955? ; 96= 1955 ; 11= 1956?? ; 61= 1956? ; 57= 1956 ; 5= 1957?? ; 9= 1957? ; 18= 1957 ; 15= 1958?? ; 9= 1958? ; 27= 1958 ; 4= 1959?? ; 13= 1959? ; 40= 1959 ; 19= 1960?? ; 14= 1960? ; 6= 1960 ; 1= 1961? ; 2= 1961 ; 1= 1962?? ; 2= 1962? ; 2= 1962 ; 1= 1963?? ; 5= 1963 ; 2= 1964 ; 2= 1965?? ; 1= 1965? ; 1= 1966? ; 1= 1966 ; 2= 1968?? ; 1= 9999? ; 2= 9999

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2128


Documents about this component
  RMA registration record covering the RCA tube types 6AT6, 6AU6, 6BA6, 6BE6, 12AT6, 12BA6, 12BE6, 35W4 and 50B5 2327 KB

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