joeyvelour wrote:
That's what was leading me to think it may be something else, since JCR's humbucker-equipped guitars appear to be fine on other amps.
Well, his H/B-equipped guitars are fine through a Tweed Champ, which has way less gain than even the Normal channel of an 18W, and a very restricted frequency response. The fact that the buzz goes away when you turn down the guitar volume controls, and that there's no buzz when you plug in an iPod or just a 10k resistor on a jack, says that the problem probably doesn't come from within the amp. So if JCR swaps his guitar cords as a test and then checks that all four input jacks don't have the hot and ground sides swapped (which does sometimes happen), then it leaves the guitar(s) picking up noise from his local environment.
It's also good to keep in mind that H/B guitars still pick up noise in their internal wiring, unless they have cavity shielding. Like I said before, the noisiest out of all my guitars is one that has only H/Bs.
On the subject of Fender guitars, I find that most of them don't have real good shielding - usually just some foil on the back of the scratch plate. Our bass player's nice Fender P-Bass (not Squire or Affinity) used to pick up a lot of buzz on stage in certain venues, presumably from light dimmers. Recently, I got its whole internal cavity shielded with copper foil and all the buzz went right away.
joeyvelour wrote:
A Tele with P90's sounds interesting
Sounds real tasty.
Tele's have so much more character than Strats IMO...