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14F7

Information - Help 
ID = 5480
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Double Triode   Audio Frequency 
Identical to 14F7 = CV930
Similar Tubes
Heater different:
  7F7
Other base:
  12SL7GT
First Source (s)
24.Oct.1940 : Electron Tube Registration List

Base Loctal-8, B8G (Sylvania, 1938) (Codex=W)
Filament Vf 12.6 Volts / If 0.15 Ampere / Indirect / Parallel / series AC/DC
Description

Medium-mu twin-triode. Mu (µ) 70.

 
Tube prices 2 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
  14f7.png
  14F7: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
 
14f7sylvaniaph1s.jpg
14F7: Patrice ZEISSLOFF
Patrice Zeissloff

 
342_3.png
14F7: Telefunken Werkstattbuch
Wolfgang Bauer

 
14f7_techdat01.png
14F7: Sylvania Technical Manual
Peter Hoddow


from Just Qvigstad

Usage in Models 1= 1942? ; 8= 1946 ; 1= 1947 ; 1= 1948? ; 3= 1948 ; 2= 1949 ; 1= 1951??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):17


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