Post by maq3396 on Feb 19, 2017 11:01:08 GMT -6
Hello all,
This was originally posted over on GDIY but hasn't stimulated any response so thought i would try here...
This is a dual tube preamp that was designed based on the G9 rack module.
I have tried switching tubes with no difference and the buzzing does not occur unless both the tubes and high voltage section section are installed. This problem has been present since "birth".
When powered on it is initially quiet but over 10 seconds or so this buzz begins.
Buzz tends to oscillate a bit....sounds like it is changing gears!
Volume of the buzz does not change with the position of any of the front panel controls.
It passes audio very well
Redone all solder joints and isopropyl ' ed everything.
Any help would be appreciated as I love the sound of this preamp!
soundcloud.com/mac-quantz/voice-170217-1mp3
Thanks
Mac
This was originally posted over on GDIY but hasn't stimulated any response so thought i would try here...
This is a dual tube preamp that was designed based on the G9 rack module.
I have tried switching tubes with no difference and the buzzing does not occur unless both the tubes and high voltage section section are installed. This problem has been present since "birth".
When powered on it is initially quiet but over 10 seconds or so this buzz begins.
Buzz tends to oscillate a bit....sounds like it is changing gears!
Volume of the buzz does not change with the position of any of the front panel controls.
It passes audio very well
Redone all solder joints and isopropyl ' ed everything.
Any help would be appreciated as I love the sound of this preamp!
soundcloud.com/mac-quantz/voice-170217-1mp3
Thanks
Mac
