Roland TB-303 for sale. Meticulously serviced by professionals (us) and in perfect working order, unlike most.
The unit shown here is the one that's for sale. Note the plastic battery compartment cover release had a crack in it and was glued and taped. It works fine.
The computer-controlled bassline helped create acid house music back in the late 80s when people couldn't give them away. The internal sequencer can be used to play other compatible CV gate instruments and works quite well with other roland music machines in the x0x box family.
Here's a video we made featuring a Roland TB-303 and TR-606 (which we often have in stock too):