I have a 608C on my bench today and the problems include;
A) No measurable output.
B) Squirrelly meters.
C) Black beauty paper caps.
To start i am going to replace the paper caps with new ones, though i would appreciate advice on the first two problems. Meanwhile, here are some pictures to ogle at.
In order,
A picture of the transformer in this thing, note the quarter for reference.
The rear.