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Re: EF86 preamp

12/27/1997 11:51 AM
Markus Torvinen
Re: EF86 preamp
Hi guys! Here are my results for the best sounding EF 86 preamp. Cathode resistor is 3,9k and cathode bypass cap is 100uF/25v. Anode resistor is 220k and resistor from B+line to g2 is 1,2meg. Cap between g2 and cathode is 0,1uF. g3 is connected to cathode. R for grid is 330 k.  
This cirquit is best to use in high gain cirquit as a last gain stage before phase splitter tube.  
 
Markus Torvinen, Tampere, Finland

 
Replies:
Bruce EF86 Preamp.....?? -- 12/28/1997 9:17 AM