[sdiy] Omni issue resolved? Anybody got TDA0470?

[Bob Weigel]

I worked on some other stuff and just left the arp baking all day...went 
back and played it with the sustain up again and we have now another 
nearby note joining the parade.  All notes are common to the transistor 
array so there possibly is some kind of leak stimulated by the common 
voltage movements developing in nearby transistors there for whatever 
reason.  Anybody know a source on those?  I hate to wreck a probably 
perfectly good omni 1 extra lower voice board.  -Bob