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I have a build that sounds real good but not as great as I want it. What makes odd harmonics when playing a single note. I have a hi gain SLO style lead channel that is just a bit off. I dont even know if it is odd harmonics or something else. When playing single notes I notice extra harmonics sort of buzzing up the sound. The pick attack is great but that lil bit of bzz is frustrating me, it is just not a clean enough pick attack. Is it the power supply voltages? The build is PP 6v6 with the SLO lead channel as the preamp. I have 396/Plates, 370/Screens, B+2/352, B+3/343, B+4/340 with bias current being 27mA(10W diss/tube). This is a very simple amp with no reverb, no channel switching, no fx loop. Just a balls out amp. Suggestions Please!
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Chunk,
You might try tightening up both the bass and treble ends and see if you get more the result you're after. Generally the more distorted a signal the better it sounds with a narrow bandwidth. For test purposes you can take low value caps - perhaps with a pot in series - and jump different places in the signal chain to ground "dialing" out the high frequencies to see where it makes the most difference. It ain't uncommon to have a small value cap 50pf or so - from the plate of one tube to ground, the cathode, or the control grid. Limiting the size of the cathode bypass caps can get rid of a lot of "thunk" and other choppy symptoms. "The more gain, the more pain" - in getting your sound "right."
Rob
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