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Yesterday we replaced the main-PS rectifier diodes, from 25-Amp HEXFREDS to 30-Amp Fairchild Stealths. I removed the heatsinks as they were never even warm to the touch, and the new diodes, too, are hardly warm. I suppose if I were driving hundreds of Watts thru these thing, the diodes would indeed require 'sinking, but I'm not, and they don't. I think I'm finished.
Excellent work and pictures Jeff. TYVM. This is a great project. I am curious you choose the Hexfreds vs the Schottcky diodes. I didn't. I chose the Fairchild Stealths; c-j chose the HEXFREDS.I found them to improve the treble but I guess they are personal preference. You are done but then again, you can still fine tune it when everything settles. Indeed.
I am curious why you would remove heatsinks. They can't hurt.
Just out of curiosity, can you estimate the out of pocket $ you have now put into these changes (not including your time/labor)?What would also be cool is a ranked ordering of the changes and the sonic benefit each made to the amp. I understand that may not be totally possible since a lot of these were made at the same time, or with little time between them. Just curious is all.