Sorry, I have to agree with 'KNY2ADQ', that thing isn't and has never been a "ham amplifier" no matter what's printed on the front of it. The design has been around almost forever and wasn't a very good design when new. The only reason for multi-tube amplifiers like this was the cost of the tubes. Since they aren't exactly a dime-a-dozen any more, it's a sort of silly way of going about it, you know?
I hope you get the thing running...
- 'Doc