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RE: Any approach we can make 6h30 warmer and richer?

Posted by Michael Samra on January 30, 2017 at 04:04:37:

I would try some of the 6sn7s or a different 6h30P.There are a few things you could do to make the amp smoother,richer,and more elegant. Put in paper in oil coupling capacitors.The Russian KBGN are wonderful caps and don't let the low price fool you because they are military surplus and if they built this cap today they would easily be 100usd or more each.You could also put in Schotky/Cree diodes in the power supply. Do you know the values of the coupling caps in your unit?