[sdiy] Pro-One filter

[Tom Wiltshire]

Just a note to say that I changed the filter capacitors in my trusty  
Pro-One. I replaced the old ceramics with new polystyrenes of the  
same value. There's been a noticeable improvement in the sound. It  
sounds fuller and richer now, without having lost any of the edginess  
that makes it such a good lead synth.

I was thinking that I needed to make more serious modifications, but  
I think I'm happy with this now. If you have a Pro-One, I really  
recommend upgrading the filter caps.

T.