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12DW7

Information - Help 
ID = 5377
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Double Triode   Audio Frequency 
Identical to 12DW7
Similar Tubes
Normally replaceable-slightly different:
  7247 ; ECC832
Different connections:
  ECC823
First Source (s)
26.Jan.1959 : Electron Tube Registration List 2366
Base Noval, 9 pin miniature (USA pico-9) B9A
Filament Vf 12.6 Volts / If 0.15 Ampere / Indirect
Description

Heater 12.6 volts at .15 amps or 6.3 volts at .3 amps.
Two different triode systems equivalent to one half 12AX7 and one half 12AU7. Intended as preamplifier and driver or phase splitter in audio amplifiers.

 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip		 21 x 55 x 21 mm / 0.83 x 2.17 x 0.83 inch
Tube prices 3 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
- - Manufacturers Literature   
12dw7.png
12DW7: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
no15_19.png 12DW7: RTT 1974 (Franzis) 13. Auflage
Martin Renz
More ...
Just Qvigstad 		12dw7_data.png
12DW7: RCA Manual RC-21
Heinz Höger
Usage in Models 1= 1959? ; 1= 1960?? ; 1= 1960? ; 1= 1960 ; 1= 1961? ; 1= 1961 ; 1= 1962 ; 1= 1963?? ; 1= 1963 ; 1= 1964 ; 1= 1970 ; 3= 1971 ; 1= 1972 ; 1= 1975
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):16

Collection of

Museum Roggenhofer (A)
Rudolf Osterkamp (D)
 
12dw7_1.jpg

12DW7
 
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