Welcome to the Forum.
We will do our best to help you solve the problems you may encounter.
If you have not read the Hints and Kinks section, you will find a lot of odds and ends that can help you out.
There is well over 200+ years of experience combined with the members here, in many different areas of electronics. So don't be shy to ask questions.
Many of the members have junk boxes for hard to find parts too, so don't hesitate to post needs for tubes, transformers, etc. If the members don't have the items, there is a great chance we can direct you someplace that has what you need.
We have members who are experimenters, Military ET's, Industrials ET's and ones who have experience in home electronics, commercial, and industrial repair.
Many of us are Ham Radio operators also.
Great success rate on the repairs. Reading schematics can be very confusing, especially as the symbols have changed over the years, especially on the early schematics. Also European symbols can be different, as well as terminology. It took me time to get the symbols figured out when I started.
73'
Frank