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Im new to this forum, I have a little knowledge about electronics but not alot. Every thing I know is from building a few cnc machines for my shop. I know very little about tubes.. Ron was kind enough to point me in the direction of a manual

I recently aquired my great grandfathers radio. I pluged it in and the fm works however the volume fades as it gets warmer to the point where its barley audible. Does any one know what is likley wrong?

I have read threw a few repairs people have done on these, its seems like they alway start with replacing caps. Why are they so susptable to going bad? What are signs of them being bad?

Thanks for any suggestions