Andy Mac
New Head-Fier
- Joined
- Dec 23, 2016
- Posts
- 21
- Likes
- 3
Got it all hooked up on the workbench, powered it up, no smoke or sparks so that was a bonus.
I plugged in some cheap earhones, hooked up my Fiio X3 and voila!! Tube magic!!!
The tubes glow a nice even healthy orange and the mosfets heat up very well.
When nothing is playing or the music is quiet, there is a loud hum... very annoying!!
It increases with volume control and is the same on both channels. It is also present with no source being plugged in...
I have wired my tube holders on wires and not directly to the board, will this effect it?
I notice if I touch the tubes or the volume pot the hum changes...
Any ideas or pointers?
It's going into a wooden case once this issue is sorted...
I plugged in some cheap earhones, hooked up my Fiio X3 and voila!! Tube magic!!!
The tubes glow a nice even healthy orange and the mosfets heat up very well.
When nothing is playing or the music is quiet, there is a loud hum... very annoying!!
It increases with volume control and is the same on both channels. It is also present with no source being plugged in...
I have wired my tube holders on wires and not directly to the board, will this effect it?
I notice if I touch the tubes or the volume pot the hum changes...
Any ideas or pointers?
It's going into a wooden case once this issue is sorted...