Hello Charlie ( and others ).
I too have fond recollections of the many hours I spent on the phone with Eddie over the years. I still have the many schematics and tutorials that he sent my way. It's been quite some time since we were in touch.
I don't know for sure what obit you are referring to, but if it's this one :
https://www.legacy.com/obituaries/name/eddie-vaughn-obituary?pid=180121935this is not our Eddie.
He went by Eddie here, but his real name is John( or Johnie, can't remember for sure ) Edward Vaughan.
His wife's name is Aimee. In addition, while I'm going by memory now, he would be in his later forties, early fifties at most. This obit is not him.
I'm pretty sure I still have his address, so I'll do a little digging and see what I can come up with.
I do still remember our last conversation. He expressed disappointment with treatment he received from certain members of another audio forum. This is only my conjecture, but I believe he disappeared because he simply wanted to.
A rare soul. I learned a lot from him.
Cheers, Crazy Bill