Speedball Question

[RFGumby]

Hi guys-

      The Speedball CCCS has the 2 regulators on it, my question is are the heat sinks for them at voltage?  I'd like to use
a common large heatsink for the 2 regulators and wanted to know if I needed to isolate them from each other or use nylon hardware
in case the regulator cases were at different potentials.  I'd also rather not have to split the heat sink to accommodate any
difference of potential on the regulators, so isolation and plastic hardware would have to be the solution if the heat sinks can't be at the same potential. 

Thanks!
Scott

[RFGumby]

Never mind.  I figured out it the heat sinks were connected to the ground plane.
Since no one had replied I thought I'd update this thread to avoid confusion for others.