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In power supplies, I go big, really big. I see no problems with 20 or 30,000 uf's on console mains filter caps. If the in-rush current is high, use higher current rectifiers. I also use very large caps on the outputs of the regulators, typically 1000 uf. I also mount 1000 uf caps on every module af...

I found this information about the differences between the 5A and 5B while looking through stereomanuals website to find a 5EX svc manual: We do not have Model 5B material, but have read that the difference betwee 5B and 5A is mostly the color of the knobs and that the performance and features were ...