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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?? ; 33= 1933?? ; 112= 1933? ; 267= 1933 ; 70= 1934?? ; 146= 1934? ; 665= 1934 ; 123= 1935?? ; 203= 1935? ; 967= 1935 ; 155= 1936?? ; 227= 1936? ; 867= 1936 ; 135= 1937?? ; 155= 1937? ; 902= 1937 ; 188= 1938?? ; 92= 1938? ; 596= 1938 ; 117= 1939?? ; 81= 1939? ; 212= 1939 ; 95= 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 ; 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):6775
Museum "Wireless In Wales Museum"
Collection of Chris Lepiarczyk (D)
Collection of Fin Stewart (AUS)
Collection of Tor Steinnes (N)
Collection of Bekir Yurdakul (F)
Collection of Patrice Follet (F)
Collection of Peter Steffen (CH)
Collection of Karlheinz Fischer (D)
Collection of Tomasz Szczesniak (PL)
Collection of Michael Gnaedig-Fischer (MEX)
Collection of Jose Luis Villabona Horreo (E)
Collection of Benedetto Pirani (I)
Collection of Bruno Candreia (CH)
Collection of Oskar Elm (D)
Collection of Biagio Laureti (I)
Collection of Valery Gromov (RUS)
Collection of David Erali (USA)
Collection of Wolfgang Bauer (A)
Collection of Bartosz Szwed (GB)
Collection of Karl - Heinz Bossan (D)
Collection of Jose Antonio Gonzalez-Ruiz (E)
Collection of Christian Schaufelberger (CH)
Collection of Jacky Parmentier (F)
Collection of Georges Werts (B)
Collection of a member from FIN
Collection of Aldo Patriarca (CH)
Collection of Raynal Aufils (F)
Collection of Jacob Roschy (D)
Collection of George Papaiz (CDN)
Collection of Reinhard Riek (D)
Collection of Bruce Morgenstern (CDN)
Collection of Yury Savin (RUS)
Collection of René Goebel (D)
Collection of Geri Meier (CH)
Collection of Antonio Bordini (I)
Collection of Justo Puertas-Paule (E)
Collection of Massimo Pedrina (I)
Collection of Alberto Ammendola (I)
Collection of Jean-Jacques Pontigny (F)
Collection of Eric Hublin (B)
Collection of Trev Levick (D)
Collection of Ottmar Rollmann (D)
Collection of Peter Roggenhofer † 25.4.18 (A)
Collection of a member from FIN
Collection of Emilio Focosi (I)
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: 3781     Replies: 0
6A7 (6A7)
Reinhard Hanschke
14.Aug.07 		  1
6A7 (6A7) 

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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