Before you read this thread, sorry if this is the wrong place to post it. Its more about repairing an amp not customizing it.

OK guys IM PUMPED! I was over my friends house and he pulled out this amp he wanted to give to me. It was a Peavey Classic VTX 212. I plugged it in let it warm up (especially for it was never used in about 20 years). Now,when it was ready to go, i started playing.When i was playing i noticed some bad rattling coming from the right speaker. What is this and how can i fix it? Also, since this amp was last used about in in 1988, is there anything i should buy for it that may die soon or be aware about?

P.S. I LOVE the distortion on this Beast!