The classic recommendation on bringing up a long-dormant vintage item is to first "condition" the old caps by bringing the thing up on a slowly increased AC voltage - but this assumes you have access to a variable AC supply, which most of us do not. The thing is, if caps are near end of life, they will go sooner or later anyway. So Uniserver's smoke test is probably as good as any.

Rick

PS Krye's next post is very sensible!