This is an old post, preserved for reference.
The products and services mentioned within are no longer available.
Before I start, I should apologise for the photography in this article. I've never got the hang of taking photos of a CRT, and this one is also a different orientation from this page, which doesn't help.
2022 Update: I had to remove this post shortly after it was posted as I kept getting requests to repair Vectrexes. Vectri? whatever they are called, they are not suitable for shipping, so even when I was doing repairs it was only practical because this one was local. Now I am not able to do any repairs, hopefully I won't get any more requests.