The KillerDAC Audio forum

Tech Corner => Tubes => Topic started by: vitavoxdude on February 11, 2018, 08:12:17 PM

Title: Valve operating points for best sound
Post by: vitavoxdude on February 11, 2018, 08:12:17 PM
Open question regarding 6J5's.  Does anyone have a set of recommended operating points for these valves?  I have the data sheet, but nothing beats actual setups.  They are being used as part of a phono amp with ecc88's upfront and 300B's downstream.
V
Title: Re: Valve operating points for best sound
Post by: stevenvalve on February 12, 2018, 12:26:46 AM
Open question regarding 6J5's.  Does anyone have a set of recommended operating points for these valves?  I have the data sheet, but nothing beats actual setups.  They are being used as part of a phono amp with ecc88's upfront and 300B's downstream.
V
I have some tasty 6J5s here rare brown base. Half of a 6SN7. I find with most tubes there is no real set parameter, usually is just trial and error, and you are right there is a sweet spot. That is why a variable resistor is handy.