[Bruce B]

Ok, I will get started on those resisters . I have felt that the problem lives in the association between RF and IF or just in the RF alone not producing a decent signal.to the detector. I used to work on these radios in the 1960s when I was in college. I haven't touched anything in Tv or radio since. I am having both fun and frustration trying to remember what I used to know, I think ?. That's one reason I don't want to just wholesale chang all the caps at once, I want to find out what capacitors are not doing their job and change them. Most of the capacitors I can put under the same stress as the radio puts them through, both AC and DC. If they don't support any DC current draw at high voltages any more than a brand new capacitor would draw, I let them stay where they are till I would find some other reason or symptom to replace it .Hopefully this will help me remember what I learned 60 years ago.
What I am curious about is the Riders 4-64 I have? It's quality is terrible!. I have to use a magnifying glass to see numbers around the components. It seems the other PDFs of the other models are quite clear, but the page I need is not clear. I see you have looked at the schematic and I was wondering if yours is also blurry? I can't believe Riders would have put our such a low quality print. Maybe it was just scanned poorly, and I should look for a better copy.
Anyway, thanks for the help, it's really appreciate. I will get started on the resistors and let you know of any joy I get.
Bruce B