Hi. I have a Sadowsky 2 band preamp with VTC(Vintage Tone Control),bass and treble.VTC has push/pull for active-passive.It has Sadowsky Knobs and Original Sadowsky Chrome Control Plate.I changed the pre with J Retro.It is used but perfectly working. I can send it all of the world via Turkish Postal Service. Sadowsky Preamp w VTC: SOLD! I have a set of Sadowsky Single Coil 5 Strings(Neck and Bridge).You can check the Sadowsky web site. http://www.sadowsky.com/store/single-coil-j-j-for-5-string-pair.html It has no problem. Single Coil J/J for 5-string (pair):SOLD! I have a set of Sadowsky Humcancelling J/J for 5-string (pair)(Neck and Bridge) Web: http://www.sadowsky.com/store/humcancelling-j-j-for-5-string-pair.html Humcancelling J/J for 5-string (pair):SOLD! Paypal is ok.