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Power supply mod.
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<blockquote data-quote="2wice" data-source="post: 828132" data-attributes="member: 14677"><p>I'm building a TPA3255 amp and needed power for it, I need about 40v for the amp and some 12v and 5v for the mesmerize preamp, 2 x Amanero units and 2 DAC's.</p><p></p><p>I had some Harris rack mount power supplies but they did not have the right mix for me.</p><p></p><p>So I pulled the 60vac presupply in a 12v unit and replaced it with a 48vdc unit.</p><p></p><p>I stripped these boxes about 3 years ago and cannot remember what the 0v ISO and +v ISO was for so I just routed the 48v there. They were from a Siemens rack . </p><p></p><p>So now I get 41v, 12v, -12v and 5v of very clean power out of one box. They can also adjust about 5% up and down. <img src="https://uploads.tapatalk-cdn.com/20180113/32bf815beecd3afe1e3623fa5d4d2fe7.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /><img src="https://uploads.tapatalk-cdn.com/20180113/78d7d128cd6c8da07be4076153de1aa1.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="2wice, post: 828132, member: 14677"] I'm building a TPA3255 amp and needed power for it, I need about 40v for the amp and some 12v and 5v for the mesmerize preamp, 2 x Amanero units and 2 DAC's. I had some Harris rack mount power supplies but they did not have the right mix for me. So I pulled the 60vac presupply in a 12v unit and replaced it with a 48vdc unit. I stripped these boxes about 3 years ago and cannot remember what the 0v ISO and +v ISO was for so I just routed the 48v there. They were from a Siemens rack . So now I get 41v, 12v, -12v and 5v of very clean power out of one box. They can also adjust about 5% up and down. [IMG]https://uploads.tapatalk-cdn.com/20180113/32bf815beecd3afe1e3623fa5d4d2fe7.jpg[/IMG][IMG]https://uploads.tapatalk-cdn.com/20180113/78d7d128cd6c8da07be4076153de1aa1.jpg[/IMG] [/QUOTE]
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Audio and Video Talk
General Discussion
Power supply mod.
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