I have had this Roland DC-30 since mid 80's and although it was still working fine, I thought that recapping it had been long overdue. So I purchased the capacitors. I got most of them locally but had to order the bipolar capacitors from Mouser. I wanted to get good quality caps like Nichicon and Panasonic. There were also two tantalum capacitors (C33 and C37) which I didn't replace. The PCB is high quality and easy to work with. Took me a few hours to replace all the caps. Very service friendly unit. Below a table of all electrolytic caps and their values.