Descrizione annuncio

This is my original TUBE DRIVER with custom BIAS CONTROL. I designed it in the early 1980s and Eric Johnson was one of my early customers. At his request, I started adding the custom Bias Control on the back so he could dial in the exact tube response he wanted. Without the Bias Control, he used to test perhaps 50 tubes before he found one he liked. Thanks to Eric's early endorsement as the creator of his famous "Violin Tone", my TUBE DRIVER has become a standard of many pro musicians the world over, including Pink Floyd's David Gilmour and ZZ Top's Billy Gibbons. I build only a few of these per week by hand personally. What you'll get is EXACTLY what I ship to the pros! ENJOY! /BK Butler