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6A7

Information - Help 
ID = 2687
       
Country:
United States of America (USA)
Brand:
Tube type:  Pentagrid-Converter (Heptode)   Frequency converter   Controlling (mu) 
Identical to 6A7 = Ut6A7 = Ut-6A7 = 6A7E = G-6A7 = CV1870 = NU-6A7
Similar Tubes
Other shape (e.g. bulb type):
  6A7S ; G-6A7-S
Other class quality (otherwise equal):
  NU-6A7S
Heater different:
  2A7
Other base:
  6A7_Octal ; 6A8G
Multiple differences or of other kind:
  MH1118 ; UPG105
First year 1933 -- Collector info (Sammler)
First Source (s)
Mar.1933 : The AWA Journal Vol. 7, 1992.
01.Aug.1934 : Electron Tube Registration List
Successor Tubes 6A8   6A8G   6A8GT   6WC5   6W-C5  

Base 7-Pin-Base U7A = small, old, USA (Codex=Mh) Top contact with a cap
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Parallel / series AC/DC
Description

* RMA/JEDEC register record available by courtesy of TCA* - This tube was already listed by several manufacturers when RMA started its standardization in 1934. In order to characterize popular receiving types, manufacturers were asked to supply average characteristics as measured on production lots. Here are the filled answer forms supplied by Radio Valve Co., Raytheon, Sparton, Triad, Tung Sol, Ken Rad, Hytron and Arcturus. Full record is downloadable here.

 
Dimensions (WHD)
incl. pins / tip
x 116 x 38 mm / x 4.57 x 1.50 inch
Weight 39 g / 1.38 oz
Tube prices 6 Tube prices (visible for members only)
Literature Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
  6a7.png
  6A7: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Michael Schlör
 
6a7_58_rm450s.jpg
6A7: Collection JR
Jacob Roschy

 
491_1.png
6A7: Telefunken Werkstattbuch
Wolfgang Bauer

 
6a7_techdat01.png
6A7: Sylvania Technical Manual
Peter Hoddow


Usage in Models 1= 1932?? ; 34= 1933?? ; 111= 1933? ; 267= 1933 ; 70= 1934?? ; 145= 1934? ; 662= 1934 ; 121= 1935?? ; 201= 1935? ; 967= 1935 ; 154= 1936?? ; 225= 1936? ; 862= 1936 ; 134= 1937?? ; 152= 1937? ; 878= 1937 ; 189= 1938?? ; 92= 1938? ; 593= 1938 ; 117= 1939?? ; 81= 1939? ; 207= 1939 ; 90= 1940?? ; 49= 1940? ; 64= 1940 ; 57= 1941?? ; 18= 1941? ; 5= 1941 ; 43= 1942?? ; 25= 1942? ; 7= 1942 ; 2= 1943?? ; 2= 1943 ; 1= 1944?? ; 1= 1944? ; 8= 1945?? ; 2= 1946?? ; 2= 1946? ; 2= 1946 ; 10= 1947?? ; 3= 1947 ; 3= 1948?? ; 2= 1948 ; 1= 1949?? ; 1= 1949 ; 35= 1950?? ; 1= 1951 ; 2= 1952?? ; 3= 1952? ; 1= 1952 ; 1= 1953 ; 2= 1955?? ; 2= 1956 ; 1= 1999 ; 4= 9999?? ; 1= 9999? ; 6= 9999

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):6720



Documents about this component
  RMA qualification record for tube types 76, 77, 78, 6C6, 6D6, 75, 41, 42, 2A5, 85, 6F7, 80, 84 and 6A7. 1569 KB

Forum contributions about this tube
6A7
Threads: 1 | Posts: 1
Hits: 3623     Replies: 0
6A7 (6A7)
Reinhard Hanschke
14.Aug.07
  1

Neupreis 1938: 57,00 FFR. Lit.: Catalog der Fa. MANUFRANCE (MF) von 1938.

 
6A7
End of forum contributions about this tube

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