Post by RandomHero on May 30, 2012 20:19:55 GMT -5
Hey all, I just finished wiring up my baby a couple months ago. I've been slowly tweaking this Fender Prodigy for quite some time, and I'm a custom graphite nut and professional finish away from having it just the way I want it.
I've got a couple of high-output humbuckers (DiMarzio Evolutions) going through a PRS-style 5-way superswitch with a single volume and single tone. This wiring utilizes full copper-tape sheilding and star grounding, but no other extras.
When first wired, I had a logarithmic pot on the volume and a linear pot on the tone. Both controls were wonky; they seemed to cover all of their range between the 10-7 settings, and from 7-1 was "floored." (No volume, completely treble-cut tone.)
I tweaked it and messed with it to no avail, and switched to a couple of log pots for both, rewiring the whole works. Now the tone is a bit more linear (to my ears) but the volume suffers the same problem as before. I used DiMarzio's schematic ('cause it was handy and it seemed right to my memory).
It's not a huge issue as I tend to play wide open with all my treble anyway, but it's a niggling flaw with my perfect axe. Any thoughts?
Short history - Once, there was GuitarNuts. It fell prey to a maladjusted, teenaged "hacker" wannabe, and I started this board. Hi! =)
Something seems very odd here. Audio taper pots have a large change in resistance at the clockwise end. If a linear tone pot seemed like all the change was at the clockwise end, an audio taper would make this seem even worse.
Regarding the volume control: I'd try this guitar with a different amp and cable. If there is something loading the output more than normal, it could be affecting the taper of the pot. If it still acts the same, try a linear pot for the volume control. Most people dislike the action of a linear as a volume control. Most of the change in volume occurs toward the counter-clockwise end. But if you're accustomed to Gibson guitars, this will seem more familiar. They use 300k linear pots for volume on most of their guitars.
It does sound like the guitar may be feeding into some excessive load,such as a medium or low impedance line input instead of a high impedance amp input, or something with the same effect loading the guitar. This would explain both the volume drop off and tone loss.
But if you have controls that are basically working better, then a treble bleed circuit can help keep the tone, and also has the effect of making the volume taper less steep.