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Has anyone out there built the bruce rosenblit "70 watt mac amp", (which uses outputs from the old mac ma230 intigrated amp) besides myself? Can anyone please suggest hexfreds to replace my rectifers?
I believe they are 25 amp, would have to look, and I have about 620
volts on the B+Thank you
Russellc cathouse7@hotmail.com
Try looking at International Rectifier's web page. I don't know the exact URL, but you can do a search and find it easily enough. Or, go to digikey's web page www.digikey.com and do a search for HEXFREDs. I have used 1200V, 16A HEXFREDs with my amp which only required maybe 4-6 amp rectifiers and am VERY pleased with the results. The noise floor was greatly reduced and bass response improved a good amount. It was a great mod and for $35, who could ask for more.Good luck, Digikey should get you where you want to be. Just pick a HEXFRED that is rated for about twice the operating voltage and with an appropriate current rating and go for it.
Dan W.
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