Hi" i am restoring a Selmer Varitone Amp . Got it to power up (hums) light is on, had to make up a power cord twist lock connector Wow! old really old school. I really need a Repair/Service Manual, can anyone help? I have checked my Controller/Preamp on another Varitone, made up a 8pin Cinch-Jones cable , reverb tank all are good! Can't wait to get it running I had the Sonny Stitt record Whats New when I was a kid just learning to play (ya I'm old) too cool!