Dean, thanks much for the suggestion. I have thought about that, but was figuring given, as the late, great Bill Thomas once said, the blend switch is made of "unobtainium" there would be others in the same situation. I certainly have seen references to it on the net. Folks just doing the normal Dynaco tweaks/rebuild as I have done several times, ditch the blend switch. I believe Bill did that on several of his rebuilds...Although he definitely kept it for one. The Van Alstine Super Pas where Frank has cleverly used it to add some needed features to the PAS. What was seemingly no longer necessary or rarely used is now is essential. I figured Frank was/has/would be getting calls on this, so it seemed like a problem that needed to be on the net. My only wonder at this point is that those circuits are proprietary and given the tendency of the Chinese to churn out circuit boards etc. for everything, perhaps Frank would rather not have an answer on the net but incorporate something into his future plan sheets. I noticed in one of his posts on the Super PAS he mentioned going over one and having to junk the blend switch, so he must have an alternate solution. If nothing else I can post here that that is obtainable from AVA. I honestly think more folks might undertake this rebuild if there was an alternative to finding a blend switch. Maybe I need to ponder the schematic a little more.
Take care.
