I am working on a project and require assistance all thou it works. The project is a dual 12watt amplifier. It has two 24vac@2amp. transformers parallel wired in the primary side. The secondary side has 4 wires going into two different power supply boards. Ie vac-gnd. & vac-gnd into two bridge rectifiers then into a 100nf @ 250volt metal film capacitor then into a 4700uf @ 50v capacitor and then finally into another 100nf @ 250v metal film. Both power. supply boards are the same just duplicated. The output of the power supply boards is as it is needed. +36vdc & gnd. +36vdc & gnd. I get a small amount of hum out of both amps in a plastic box. Can I hog point this type of design when I put the entire set up into a metal box by running a wire backwards from circuit common
on both boards to the green wire of a three prong plug without blowing up the box, capacitors ect. Does anyone know the correct way. The two amplifers power four 30 Watt speakers pretty nicely for my first attempt. I think I made a mistake in plastic enclosure thou. tanks
on both boards to the green wire of a three prong plug without blowing up the box, capacitors ect. Does anyone know the correct way. The two amplifers power four 30 Watt speakers pretty nicely for my first attempt. I think I made a mistake in plastic enclosure thou. tanks