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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
Normally replaceable-slightly different:
  38617
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 / Specified voltage AND current 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 5 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
Tube Lore (II)   p. 47 & 183
Taschenbuch zum Röhren-Codex 1948/49
Röhrencodex , Röhren-Taschenbuch 1950 23000 Röhren

6a7.png
6A7: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Anonymous 10 Collector

491_1.png 6A7: Telefunken Werkstattbuch
Wolfgang Bauer

More ...

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

More ...
Usage in Models 34= 1933?? ; 115= 1933? ; 275= 1933 ; 70= 1934?? ; 168= 1934? ; 690= 1934 ; 135= 1935?? ; 227= 1935? ; 995= 1935 ; 158= 1936?? ; 241= 1936? ; 900= 1936 ; 153= 1937?? ; 165= 1937? ; 932= 1937 ; 189= 1938?? ; 107= 1938? ; 604= 1938 ; 118= 1939?? ; 90= 1939? ; 216= 1939 ; 99= 1940?? ; 51= 1940? ; 64= 1940 ; 60= 1941?? ; 20= 1941? ; 6= 1941 ; 43= 1942?? ; 25= 1942? ; 7= 1942 ; 2= 1943?? ; 1= 1943? ; 2= 1943 ; 1= 1944?? ; 1= 1944? ; 8= 1945?? ; 2= 1945? ; 2= 1946?? ; 2= 1946? ; 2= 1946 ; 11= 1947?? ; 3= 1947 ; 3= 1948?? ; 2= 1948 ; 1= 1949 ; 39= 1950?? ; 1= 1951 ; 2= 1952?? ; 3= 1952? ; 1= 1952 ; 1= 1953 ; 2= 1955?? ; 2= 1956 ; 4= 9999?? ; 1= 9999? ; 6= 9999

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):7062


Collection of


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
 
6a7_58_rm450s.jpg

6A7
 

Forum contributions about this tube
6A7
Threads: 1 | Posts: 1
Hits: 5017     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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