Is your tube preamp grounded with a clear path? I know this may sound simple, but some power cords have no ground, and some have a resistive ground, that's why I ask.
If your preamp does have a clear path to ground, then try the humidifiers as mentioned above. Also, a anti-static brush like a Hunt/Decca etc will help, but not as much as the Talisman from Walker Audio IMHO.
Happy listening,
John
If your preamp does have a clear path to ground, then try the humidifiers as mentioned above. Also, a anti-static brush like a Hunt/Decca etc will help, but not as much as the Talisman from Walker Audio IMHO.
Happy listening,
John