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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  
Base Noval, 9 pin miniature (USA pico-9) B9A
Filament Vf 12.6 Volts / If 0.15 Ampere / Indirect / Specified voltage AND current 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)
Information source Essential Characteristics, GE 1973   
Tube Lore (I)   
7025.png
7025: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Anonymous 10 Collector     More ...
7025_sock.png 7025: GE Data Sheet
Egon Penker
More ...
Just Qvigstad 		7025_dat1.png
7025: GE Data Sheet
Egon Penker
More ...
Usage in Models 1= 1950?? ; 1= 1953?? ; 2= 1955?? ; 3= 1958? ; 13= 1958 ; 1= 1959?? ; 123= 1959? ; 67= 1959 ; 11= 1960?? ; 17= 1960? ; 8= 1960 ; 20= 1961? ; 3= 1961 ; 4= 1962?? ; 33= 1962? ; 11= 1962 ; 3= 1963?? ; 30= 1963? ; 7= 1963 ; 50= 1964? ; 4= 1965?? ; 1= 1965 ; 2= 1966? ; 1= 1966 ; 1= 1967?? ; 3= 1968? ; 1= 1968 ; 1= 1975? ; 1= 1977 ; 1= 1981 ; 1= 1982 ; 1= 1986 ; 1= 9999
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):427

Collection of

Robert Gillespie (USA)
George Papaiz (CDN)
Bruno Candreia (CH)
Nicholas Roberts (F)
Emilio Ciardiello (I)
Georges Werts (B)
Aires Gomes (P)
Karlheinz Fischer (D)
Peter Hoddow (D)
Thomas Martin (D)
 
7025_1.jpg

7025
 
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