Hey folks,
First things first...welcome 18w refugees!!
Alright, brass tacks!...My sIII, based on one of the first of Stephen's and s2's schematics...has always been a tad 'buzzy'. For the longest time I just dealt with it and figured I'd return to address it at another time. School's over and I've got some time before grad school starts in the fall...so *nows* the time.
First off...has anyone had to deal with the buzzies with their sIII? Did you employ the ruby zener-fix? Did it work?
a week or two ago, when I had some time to putz with this thing, I raised the cathode resistor from 130r to 150r....I got marginal improvement...but I'm still getting the buzzies.
I almost pulled the noval sockets and drilled em open to replace em with octals to convert the amp to a full-blown 6v6 sIII. In fact, I *still* might do it...since I actually like the 6v6 better in a 2X configuration. I find that the el84 in a 2X config doesn't hold up as well as 4Xel84's.
The problem with drilling bigger holes, is that it's alot harder to go back after you drill the holes...lol..
So let's hear it. Anyone have any comments re: this?
Thanks,
Frank