I understand. When I was in the Air Force I use to install equipment half way around the world from where I was stationed. When the engineer made a mistake on a drawing it was a PITA. Most of the time we had to reengineer the entire project and hope we could source the parts at our location.
I checked his parts placement (nothing backwards etc.) and just for jollies ran a spice sim of the TI voltage regulator, worked but Mike had done that. Now it's time to hook it up to batteries and see how it works and it's more than bread-boarding, the SM chips he's using shouldn't be compared the their sisters you can punch into a bb.
I'm thinking Mike's down to tin bending time, even Mat Lab sims can only go so far.
How's it going Mike? What's going on with the TI Chip, Harpo or i might be able to help if you email us with what's going good/bad but after you hook up to batteries and make vapor seeing you've done the "find the problem" the fix is usually easy but let us know if you want to run a fix by.
AFSC32550 can't believe i remember that harpo, it's been over 40 years. I was AutoPilot and Nav on B52's and KC135's. What did you work on?