Thank you all for the responses. I will work with the following points:
5. I am over 60 also, and using a glass to inspect the resistors could be
interesting.

You might consider a headworn magnifier. There are some very inexpensive
ones sold by guys like Parts Express. I always pooh poohed them, but then
I actually tried one and it makes work MUCH easier. Also, a very strong
bench light helps a lot. You may not realize how much easier it is to work
with a very strong light until you try it.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."