For sale: Tube Works Blue Tube overdrive. Very rare. This was designed by B.K. Butler, based in Denver. It's a very easy-to-use pedal with knobs for output and drive, and EQ controls for high, mid, and low. It was designed and released in the '80s. I think mine was built in 1991, but it is a little hard to read. It is in fantastic shape.
Yes... the tube is real and it sounds spectacular! Mine has a 12AX7, but many replace it with a 12AU7 or other 12A variant to alter the gain.
No Trades. Local sales only. ** Reply with your phone number if you want a reply **
More info on the various BK Butler pedals here: http://www.kitrae.net/music/Music_mp3_Tube_Driver_Versions.html