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HexFreds in Tube amp?

Posted by MIKE on July 1, 1999 at 12:14:24:
I just got a pair of used Quicksilver Silver Mono amps rated at 90watts each. Being a tweak, I opened one up. Component and built quality seems good. I noted a simple all in one four pin bridge rectifier just before a 5AR4 rectifier tube. I have replaced similar bridge rectifiers with HexFreds in solid state gear with an increase of resolution. My question is has anyone done this to their tube amps and was it worth the effort?