![]() ![]() 911 tube driver real tube overdrive (tube works and genz benz) chandler's trademark for the name tube driver lapsed in 1993, so b.k. a four knob version of the tube works 901 real tube pedal, which was an improved tube driver. 1993 94 911 tube driver made by butler's tube works company.only marked with script chandler logo on the front, no bk butler. ![]() knockoff made by chandler after butler parted ways with them. bk butler's original hand made tube driver guitar pedal used by eric johnson, david gilmour, billy gibbons, episode 03 taking a break from covid 19 hysteria and looking at the bk butler tube driver! 2006 non bias knob td demo 00:02:55 2016 bias knob td in the late. today we look at what's inside this tube driver. Secrets revealed!! what's inside this bk butler tube driver real tube overdrive. it is a limited run version of the pedal in a gold enclosure. this is on of the american made versions from the late 1980s. ![]() a real 12ax7 valve gives warm tube drive sound and dynamics. it is a 5 knob bk butler tube driver circuit with slightly less gain. the us version states the bk butler 5022305 patent number on it's case. The bk butler tube drive circuit is based on a op amp gainstage driven into two triode stages of 12ax7 tube, using low plate voltage (about 16volts) there are lot of similar products, such as chandler tube driver, dean markley overlord (classic tube overdrive) and many others. ![]()
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