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7025

Information - Help 
ID = 3942
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Double Triode   Audio Frequency 
Identical to 7025
Similar Tubes
Normally replaceable-slightly different:
  7025A
Other class quality (otherwise equal):
  12AX7 ; ECC83
First Source (s)
24.Feb.1958 : Electron Tube Registration List 2110
Predecessor Tubes 12AX7  
Successor Tubes 7247  

Base Noval, B9A
Filament Vf 12.6 Volts / If 0.15 Ampere / Indirect / Parallel / series AC/DC
Description Low-hum, noise and microphonics version of 12AX7.
Heaters can be parallel connected for operation at 6.3V, 0.3A. 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
20 x 54 x mm / 0.79 x 2.13 x inch
Tube prices 2 Tube prices (visible for members only)
Literature Essential Characteristics, GE 1973   
Tube Lore   
  7025.png
  7025: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Michael Schlör
 
7025_1.jpg
7025: K.H.Fischer
Karlheinz Fischer

 
7025_sock.png
7025: GE Data Sheet
Egon Penker

 
7025_dat1.png
7025: GE Data Sheet
Egon Penker


Usage in Models 1= 1953?? ; 2= 1955?? ; 2= 1958? ; 12= 1958 ; 1= 1959?? ; 120= 1959? ; 66= 1959 ; 10= 1960?? ; 13= 1960? ; 8= 1960 ; 16= 1961? ; 3= 1961 ; 3= 1962?? ; 28= 1962? ; 11= 1962 ; 27= 1963? ; 6= 1963 ; 49= 1964? ; 3= 1965?? ; 2= 1966? ; 1= 1966 ; 1= 1967?? ; 2= 1968? ; 1= 1968 ; 1= 1975? ; 1= 1977 ; 1= 1981 ; 1= 1982 ; 1= 1986

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):393


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