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6Q7G

Information - Help 
ID = 2707
       
Country:
Worldwide
Brand: Common type Worldwide tube/semicond.
Tube type:  Double Diode-Triode   Audio Frequency 
Identical to 6Q7G = VT-92A = W1526 = DH63 = VT194_GPO = CV587
Similar Tubes
Other shape (e.g. bulb type):
  6Q7 ; 6Q7GM ; 6Q7GT ; 6Q7MG
Normally replaceable-slightly different:
  6Q7GR ; NR68
Other characteristic (electr. data):
  6B6G ; 6B6M
Heater different:
  12Q7G
First year 1936 -- Collector info (Sammler) Based on the number of models only.
First Source (s)
1936 : -- Schematic
Predecessor Tubes 75  
Successor Tubes 6SQ7GT   12Q7G   6Q7MG   6Q7GT  
Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Uf)
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AND current AC/DC
Tube prices 1 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
Babani, International Radio Tube Encyclopaedia
cv5876qgnr68_appa.png
6Q7G: Manufacturer's Literature
Emilio Ciardiello
oc18_g.gif 6Q7G: RTT Schwandt
Günther Stabe † 19.8.20
More ...
Just Qvigstad 		6q7g_rca_data_01.png
6Q7G: original data sheet
Michael Poll
More ...
Usage in Models 3= 1936?? ; 22= 1936? ; 160= 1936 ; 19= 1937?? ; 54= 1937? ; 355= 1937 ; 107= 1938?? ; 258= 1938? ; 773= 1938 ; 69= 1939?? ; 78= 1939? ; 392= 1939 ; 63= 1940?? ; 36= 1940? ; 125= 1940 ; 22= 1941?? ; 14= 1941? ; 51= 1941 ; 20= 1942?? ; 25= 1942? ; 19= 1942 ; 5= 1943?? ; 5= 1943? ; 8= 1943 ; 2= 1944? ; 12= 1944 ; 12= 1945?? ; 33= 1945? ; 61= 1945 ; 20= 1946?? ; 10= 1946? ; 66= 1946 ; 15= 1947?? ; 11= 1947? ; 38= 1947 ; 16= 1948?? ; 7= 1948? ; 19= 1948 ; 3= 1949?? ; 4= 1949? ; 9= 1949 ; 13= 1950?? ; 1= 1950? ; 8= 1950 ; 6= 1951?? ; 2= 1951 ; 1= 1952 ; 1= 1955?? ; 1= 1956?? ; 1= 1956 ; 1= 1957? ; 1= 1962 ; 1= 2020 ; 1= 9999? ; 7= 9999
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3066
Museum "Porthcurno Telegraph Museum"

Collection of

Georges Werts (B)
Emilio Focosi (I)
Aldo Patriarca (CH)
Bartosz Szwed (GB)
Valery Gromov (RUS)
Hermann Fleischanderl (A)
Bekir Yurdakul (F)
George Papaiz (CDN)
Yury Savin (RUS)
Jose Luis Villabona Horreo (E)
Jozef Brughmans † (B)
Raynal Aufils (F)
Manuel Martinez (E)
Klaus Rüdiger (D)
Roland Biesler (D)
Antonio Bordini (I)
Daniel Rosha (IR)
Antonio Varrica (I)
Collection of a member from FIN
Jacob Roschy (D)
Reinhard Riek (D)
Walter Nigg (FL)
Benedetto Pirani (I)
Fin Stewart (AUS)
Christian Schaufelberger (CH)
Peter Steffen (CH)
Jean-Jacques Pontigny (F)
Tomasz Szczesniak (PL)
Michael Gnaedig-Fischer (MEX)
Museum Roggenhofer (A)
Ernst Rykkje (N)
Carlo La Perna (I)
Peter Löytynoja (FIN)
Bruce Morgenstern (CDN)
David Erali (USA)
Otto Frosinn (D)
Danko Tkalec (HR)
Guido Höh (D)
Timo Rantasaari (FIN)
Giorgio Busletta (I)
Alberto Ammendola (I)
Trev Levick (D)
Emilio Ciardiello (I)
Massimo Pedrina (I)
Piero Iatteri (I)
Marcello Astolfi (I)
Peter Pfeiffer (D)
 
6q7g_71rm400s.jpg

6Q7G
 

Variants

6Q7G made by Tungsram, with metallized bulb.
In Italy Fivre, Marconi and Sicte sold a renewed vaiant of the domed G bulb after the introduction of GT types. The tubular G envelope had the diameter of the GT one and the height of the old domed G.
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