Well I wanted to start building and designing amps since forever and a few months back there was an add for an amp building school coming up. So I signed up and it happened to be the weekend of my birthday which was a plus. It was run by this guy who used to teach electronics and run an amp repair business. There was 7 of us all up and it was over two days.
It was using a design of his own with low costs components including off the shelf transformers run in series for extra voltage and a 100v line transformer for the output. It uses a pair of 6ax7's for input and phase splitting and a pair of 6P18S's (EL82 equivalents) in class A/B. It's assembled and made in a baking tray. XD Simple controls, Gain, Bass, Treble and Volume. Sounds like absolute shit when cranked, kinda like a Big Muff with everything turned to 11. However for cleans it's quite good. Very Silverface Bassman like. I'll dick around with some mods and see if I can't get it sounding somewhat better.
It was an awesome little course that gave me enough foundation info to really start understanding the ins and outs of tube electronics and how to safely work with them. Now I can open an amp and not be afraid of killing myself. XD He covered basics of designing amps and tone stacks, power supplies and filtering. Now I'm itching for some new projects so I'll check out some stuff online and get into it. Plus I have a Marshall JTM30 that's dead I can have a crack at identifying the issue.