radiomuseum.org
Please click your language flag. Bitte Sprachflagge klicken.

14Q7

Information - Help 
ID = 2645
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Pentagrid-Converter (Heptode)   Pentagrid (new)   Controlling (mu) 
Identical to 14Q7
Similar Tubes
Heater different:
  7Q7
Other base:
  12SA7
First Source (s)
01.Mar.1940 : Electron Tube Registration List
Predecessor Tubes 12A8G   14B8  
Successor Tubes 12BE6  

Base Loctal-8, B8G (Sylvania, 1938) (Codex=Wd)
Filament Vf 12.6 Volts / If 0.15 Ampere / Indirect / Specified voltage AND current AC/DC
Tube prices 2 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   

14q7.png
14Q7: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †

411_1.png 14Q7: Telefunken Werkstattbuch
Wolfgang Bauer

More ...

Just Qvigstad
14q7_techdat01.png
14Q7: Sylvania Technical Manual
Peter Hoddow

Usage in Models 1= 1924? ; 1= 1940 ; 2= 1941? ; 6= 1941 ; 3= 1942?? ; 3= 1942? ; 10= 1942 ; 6= 1945? ; 3= 1945 ; 6= 1946?? ; 28= 1946? ; 116= 1946 ; 18= 1947?? ; 6= 1947? ; 54= 1947 ; 4= 1948?? ; 3= 1948? ; 57= 1948 ; 4= 1949?? ; 5= 1949? ; 10= 1949 ; 9= 1950?? ; 1= 1950? ; 1= 1950 ; 10= 1951?? ; 3= 1952?? ; 3= 1952? ; 3= 1953??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):376

Collection of

 
14q7a_1.jpg

14Q7
 

You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]
  

Data Compliance More Information