hello all.. I have started a thread on this a while back and got plenty of info that I needed on parts and good insight on design. But now I think ive got all the parts necessary to start my build. Ive chose a transformer its an old Marantz with a sec hv coil that is center tapped and from the center to each side it is 44.5 vac. I have that figured to make 62.47 VDC. What I want to do with my psu is make it 0-24vdc variable with 10a current. I plan on using an mb354-w bridge rectifier that's rated at 100vdc@30a. I plan on using each side of the hv sec. coil to make +/- vdc. I plan on using 3 lm317's with a 3055 on each as a pass transistor to achieve the ampherage. I think I have a rough schematic ive drawn ill try to attach. My xformer also has 2 other coils, 1 at 8.1ac and another at38.5 vac. I hope to use these somehow for other features. I also have 3 nte2050's and 12 green 7seg displays that I plan to use to make digital displays for +vdc,-vdc, and amps. What I don't have yet is the correct potentiometers for the rough tunin and fine tuning knobs, I will need some help for those. I have plenty of heatsinks from small to very big and a few fans so keeping things cool shouldn't be a problem. Ill try to attach my drawings so far. please keep in mind that im just a step above but below intermediate. Ive built rough dirty psus befor but nothing this complex. I hope to use this for years to come. I appreciate your critique, suggestions and advise. thank you. I think yhe one labeled new supply is mt latest but without the pass transistors.. please give me your advisw as im finally ready to build. thanks
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