Troubleshooting a JCM800 2203 100W

[sonolink]

Mine has little red square caps.....

 

[CJ]

yeah, no, those caps gotta come out right away,

nice clean chassis, what year?

 

[sonolink]

What would you replace them with. Wima or something like that?

Year is 1983

 

[Whoops]

I don't know if you saw my post  CJ, I was asking what was the problem with those caps?
And if they're known to be prone to failure?

Thank you