I listed only one 473uF, 100v on the component side, all others on this side not labeled are these type.
4 of these are on the component side and 1 on the trace side (Hence the label indicating 5 ea). : Fuzz Face, Big Muff, ColorSound PowerBoost, BK Butler Tube Driver, BOSS BD-2, BOSS DS-1, Marshall. During its long life the Tube Driver has appeared in many forms. This is a pedal that has been around for over thirty years and has become a long-standing favorite amongst some of the most elite players in the business for its smooth distortion and boost capabilities. Gibbons, Joe Bonnamassa, Keith Urban, one of the Kings of Tone Eric Johnson, or the countless threads on. The BK Butler 911 Tube Driver has been one of those items for me.
The legend of tone surrounding this pedal is of mythic proportions, whether it’s because of the infamous guitarists like David Gilmour from Pink Floyd, the reverend Billy F. There's only 1 cap on the trace side, it's a 473uF, 100v. Butler Tube Driver is one of those holy grail pedals in the lore of guitar enthusiasts like myself. I believe the ones BK is making now have a Yugoslavian tube in them - also alot of guys actually will put a 12AU7 in, which is lower output and yields a smoother, fatter tone - I used to have one in my 3 knob TD, and it did make a difference - smoother, more articulate. Someone wanted detailed cap and pot values of my Tubedriver, so here goes: His classic tones did not utilize a bias knob model.