I have 30 something years of assembly/soldering skills and many other attributes.. how can I be hired without any temp agencies

Unless you know an employee you probably can't get hired without temping first.

I can't answer that question

This is not the correct forum/place to ask such questions. You can use Quora/LinkedIn or similar platforms. However, to answer your question, have you tried apply for your role through LinkedIn jobs or Monster or Indeed websites? A lot of recruiters are now hiring through LinkedIn itself. If you don't have a profile, create one and apply in those portal. Sometimes the recruiter just look at your profile and contact you based on the skills you listed on your profile.