radiomuseum.org

 
Please click your language flag. Bitte Sprachflagge klicken.

7F8

Information - Help 
ID = 3558
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Double Triode   VHF 
Identical to 7F8 = CV2968
Similar Tubes
Other class quality (otherwise equal):
  7F8W
Heater different:
  14F8
First Source (s)
31.Jul.1944 : Electron Tube Registration List
Successor Tubes 12AT7   6169  
Base Loctal-8, B8G (Sylvania, 1938) (Codex=Ue)
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Parallel / series AC/DC /
Tube prices 2 Tube prices (visible for members only)
Literature Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
  7f8.png
  7F8: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Michael Schlör
 
7f8kl_1.jpg
7F8: J.B.
Jürgen Bauch
 
580.png
7F8: Telefunken Werkstattbuch
Wolfgang Bauer
 
7f8_techdat01.png
7F8: Sylvania Technical Manual
Peter Hoddow
Usage in Models 1= 1945 ; 17= 1946 ; 1= 1947?? ; 10= 1947? ; 37= 1947 ; 2= 1948?? ; 7= 1948? ; 69= 1948 ; 4= 1949?? ; 8= 1949? ; 25= 1949 ; 12= 1950?? ; 7= 1950? ; 3= 1950 ; 3= 1951?? ; 3= 1951? ; 7= 1951 ; 8= 1952?? ; 2= 1952? ; 5= 1953?? ; 1= 1954 ; 1= 1955 ; 2= 1965
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):235
Collection of Jürgen Bauch (D)
Collection of David Erali (USA)
Collection of Stig Comstedt (S)
Collection of Tomasz Szczesniak (PL)
Collection of Michael Gnaedig-Fischer (MEX)
Collection of Danko Tkalec (HR)
Collection of a member from FIN
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]
  
rmXorg