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Ted FletcherTed Fletcher

I don’t have any info on the power supplies for the ACM mixers….. the 15-0-15 supplies were very standard series regulator types and caused little in the way of problems.

The phantom supplies were usually voltage doublers off the AC and then series regulated…. but nowadays there’s a very much better way: Go on ebay and buy a DC to DC converter board for just a very few pounds. I have to admit that I now use these boards myself on new equipment to achieve the 48V phantom power. They are reliable, quiet and extremely efficient. Just connect one to the +15V rail and adjust the output to 48V….. it really is that easy! :)