New to tube amps

Hello
I have a number of solid-state receivers that I have repaired and maintained over the past 15 years. I recently purchase my first tube amp which is a Dynaco ST-70 built from a kit in 1962. As I know nothing about tube amps and at this point find them confusing when compared to my solid state devices and I was hoping to get help and advice with my Dynaco.

Sincerely
Bob
 
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