Quote: Originally Posted by ezzieyguywuf /img/forum/go_quote.gif I think I'll have to attribute my channel imbalance to a bad pot. I've checked the resistances manually and they are never equal, throughout the whole sweep of the wipers. I mean, I payed $2.53 for it. I dunno if that's a lot for a pot or not, but I was seriously trying to keep this thing cheap. And (as I've mentioned twice) I'm already over budget, so I new pot will have to wait. Probably for a while... *sigh*. the_equalizer, thanks for all your help. I'm rather certain that its wired up properly. I did all the checks that dsavitsk talks about in post #3861 on page 258 and everything actually measures pretty good. The thing is, though, that my AC Voltmeter doesn't have super high resolution, so even with the pot maxed and the input maxed, the voltages at grid and output are still in the 0.0 to 0.3 range. And I noly get the one decimal, so yea on that. Oh, and I had to use a 70Hz tone, though I'm sure that made no difference...oh gawd, did my headphones just blow up? Anywho, I had lots of fun building this thing, but can't really listen to it as it stands now. I'll have to wait till later in the summer, or maybe closer to august to give a new pot a shot. It does sound good though :-D I agree, your pot does seem to be correctly wired. Maybe it got damaged while soldering? Difficult to say but in any case, I use the same 'phones you do (Grado SR-60i) with my 12AU7 SSMH and the pot sits at 9 o'clock for my normal listening (and I like listening at low levels). Well, the pots I use for prototypes are $2.73 at Mouser, part number RV24BF-10-15R1-A50K. Not a "blue velvet" but robust and functional. cheers!