In a message dated 6/10/97 4:37:17 PM, you wrote: > I also found out (the hard way!!!) that the >Clarostat RV4 series pots (and probably all Clarostat models) have a back >cover material (probably aluminum) that cannot be soldered too. I can't be certain, but I think that the RV4's from JameCo are "solderable" to the back cover. -K