I izackoh New member May 18, 2014 #1 WTS used (never really use much) BK Butler Tube Driver. Comes with a bias knob. Changed the tubes on the inside already using JJ Tubes. 12AU7. Price: $350 (neg) not willing to trade. Call: 97291842 Last edited: May 18, 2014
WTS used (never really use much) BK Butler Tube Driver. Comes with a bias knob. Changed the tubes on the inside already using JJ Tubes. 12AU7. Price: $350 (neg) not willing to trade. Call: 97291842
