I just can't stop: Mighty-Morphin Volume control.
- Thread starter Artie
- Start date
fatigueofheart
New member
Re: I just can't stop: Mighty-Morphin Volume control.
or this forum...
or this forum...
Zhangliqun
Questionologist
Re: I just can't stop: Mighty-Morphin Volume control.
Well, it's not just a Spin-A-Split, it's a master volume for a single coil that then turns into a Spin-A-split past the center position. If I understand correctly, it turns the first coil from silent to full at the center position, then adds in the second coil from the center position to all the way up.
I think a better idea (hard to top Art-meister but here goes) would be a push/pull pot that switches the function of the pot from normal volume for the full-on humbucker to Spin-A-Split. Still a bit limited but not quite AS limited...
But for sheer versatility, to me the best is just to have separate pots for volume and Spin-A-Split.
ArtieToo said:
Well, it's not just a Spin-A-Split, it's a master volume for a single coil that then turns into a Spin-A-split past the center position. If I understand correctly, it turns the first coil from silent to full at the center position, then adds in the second coil from the center position to all the way up.
I think a better idea (hard to top Art-meister but here goes) would be a push/pull pot that switches the function of the pot from normal volume for the full-on humbucker to Spin-A-Split. Still a bit limited but not quite AS limited...
But for sheer versatility, to me the best is just to have separate pots for volume and Spin-A-Split.
JacksonMIA
Lemur-buckerologist
Re: I just can't stop: Mighty-Morphin Volume control.
Did you ever try this, Artie?
Did you ever try this, Artie?
Artie
Peaveyologist
Re: I just can't stop: Mighty-Morphin Volume control.
Not yet. :yell: Something keeps coming up. I'll get it done this week for sure. I think . . .
Artie
Edit: There's no time like the present. I'm gonna go do this right now. I'll be back shortly.
JacksonMIA said:
Not yet. :yell: Something keeps coming up. I'll get it done this week for sure. I think . . .
Artie
Edit: There's no time like the present. I'm gonna go do this right now. I'll be back shortly.
Last edited:
Artie
Peaveyologist
Re: I just can't stop: Mighty-Morphin Volume control.
Ok . . . it works, but not as expected. I have it wired so that it comes up to full volume as a single, then morphs into a humbucker. The problem is, as I barely come off of the detent, I immediately hit about 90% humbucker mode, then go to full 'bucker as I complete the rotation. The change in sound from just off of the detent, to full clockwise, is very subtle.
Here's what I think the problem is. Normally, a pot has approximately 300 deg's of rotation. If we cut that in half, I've got 500k in 150 deg's. That's 3.3k in 1 degree of rotation. Apparently, 3.3k is more than enough to isolate the red/white from ground.
I'll play with some numbers and see if I can somehow skew the taper of the second pot, but right now . . . this mod is a bust. :yell:
Artie
Edit: btw - I'm using my Duncan Distortion as my test case.
Ok . . . it works, but not as expected. I have it wired so that it comes up to full volume as a single, then morphs into a humbucker. The problem is, as I barely come off of the detent, I immediately hit about 90% humbucker mode, then go to full 'bucker as I complete the rotation. The change in sound from just off of the detent, to full clockwise, is very subtle.
Here's what I think the problem is. Normally, a pot has approximately 300 deg's of rotation. If we cut that in half, I've got 500k in 150 deg's. That's 3.3k in 1 degree of rotation. Apparently, 3.3k is more than enough to isolate the red/white from ground.
I'll play with some numbers and see if I can somehow skew the taper of the second pot, but right now . . . this mod is a bust. :yell:
Artie
Edit: btw - I'm using my Duncan Distortion as my test case.
Last edited:
JacksonMIA
Lemur-buckerologist
Re: I just can't stop: Mighty-Morphin Volume control.
Interesting. It would still work to split your bucker, but that's a lot of trouble to keep from adding a push/pull or a mini toggle. Do you think you could help it out a little with a resistor in parallel? I'll leave it to you to figure out the math for which one.
Would it work better going the other way? Volume up to a full bucker and then morph into a single coil? Just throwing out ideas. Maybe I should get my soldering iron out and try it myself. :smack:
Interesting. It would still work to split your bucker, but that's a lot of trouble to keep from adding a push/pull or a mini toggle. Do you think you could help it out a little with a resistor in parallel? I'll leave it to you to figure out the math for which one.
Would it work better going the other way? Volume up to a full bucker and then morph into a single coil? Just throwing out ideas. Maybe I should get my soldering iron out and try it myself. :smack:
Artie
Peaveyologist
Re: I just can't stop: Mighty-Morphin Volume control.
Thats what I was doing at work today, (between fixin' stuff), was to calculate different resistors in parallel. Unfortunately, they all make the problem worse. There's no way to get the kind of taper I need. (At least, none that I could figure out.)
Morphing to single might work better, but then you lose the smooth transition of going from soft to louder to ballsier. The peak output is in the middle.
I'm still going to mess with this some more, but it doesn't look promising.
Artie
Thats what I was doing at work today, (between fixin' stuff), was to calculate different resistors in parallel. Unfortunately, they all make the problem worse. There's no way to get the kind of taper I need. (At least, none that I could figure out.)
Morphing to single might work better, but then you lose the smooth transition of going from soft to louder to ballsier. The peak output is in the middle.
I'm still going to mess with this some more, but it doesn't look promising.
Artie
Zhangliqun
Questionologist
Re: I just can't stop: Mighty-Morphin Volume control.
Did you ever get around to a wiring diagram for the Adjust-A-Mud? That's the one that really got my attention...
Did you ever get around to a wiring diagram for the Adjust-A-Mud? That's the one that really got my attention...
Artie
Peaveyologist
Re: I just can't stop: Mighty-Morphin Volume control.
Yeah, its in another post around here somewhere. But I can summarize what I ended up with. Making the mod adjustable proved not to be of much benefit. But the mod "straight-up" was killer. Its just a 500k resistor and .01uf cap in parallel with each other, in series between the red and white wires. Like this:
I have both my Distortion neck and 59 neck modded this way. I'll never go back. Anyone with a 59 neck, who thinks they're muddy needs to try this. I really believe its that good. I'll try to post a short clip later. I have a little bypass switch on the one on my 59.
Artie
Zhangliqun said:
Yeah, its in another post around here somewhere. But I can summarize what I ended up with. Making the mod adjustable proved not to be of much benefit. But the mod "straight-up" was killer. Its just a 500k resistor and .01uf cap in parallel with each other, in series between the red and white wires. Like this:
I have both my Distortion neck and 59 neck modded this way. I'll never go back.
Anyone with a 59 neck, who thinks they're muddy needs to try this. I really believe its that good. I'll try to post a short clip later. I have a little bypass switch on the one on my 59.Artie
Last edited:
FretFire
SingedFingerologist
Re: I just can't stop: Mighty-Morphin Volume control.
Pretty cool, but that's just a center-detent pot isn't it? The blend pot I had in my strat wasn't stacked like that, and didn't have a stop in the center. It was a no load at 10, and was soley for wiring up to the bridge and neck pickups for gradually bringing them in when the respective pickup was NOT chosen via the selector switch. It was just a non-Fralin branded CTS blend pot.
Pretty cool, but that's just a center-detent pot isn't it? The blend pot I had in my strat wasn't stacked like that, and didn't have a stop in the center. It was a no load at 10, and was soley for wiring up to the bridge and neck pickups for gradually bringing them in when the respective pickup was NOT chosen via the selector switch. It was just a non-Fralin branded CTS blend pot.
Zhangliqun
Questionologist
Re: I just can't stop: Mighty-Morphin Volume control.
Much appreciated Artie, but I did see that one earlier and it's a schematic, not a wiring diagram and I confess I'm not too good with schematics. I need to see what wire goes to what lug, etc.
ArtieToo said:Yeah, its in another post around here somewhere. But I can summarize what I ended up with. Making the mod adjustable proved not to be of much benefit. But the mod "straight-up" was killer. Its just a 500k resistor and .01uf cap in parallel with each other, in series between the red and white wires. Like this:
I have both my Distortion neck and 59 neck modded this way. I'll never go back.
Artie
Much appreciated Artie, but I did see that one earlier and it's a schematic, not a wiring diagram and I confess I'm not too good with schematics. I need to see what wire goes to what lug, etc.
Artie
Peaveyologist
Re: I just can't stop: Mighty-Morphin Volume control.
Ah, I see. I'll make an actual wiring diagram of this mod with the "adjustable" part, in case you want to try it, but it didn't have much affect from one setting to the other. However, putting in a switch, so that you can A/B the difference is worthwhile. I'll try to get something up tomorrow.
Artie
Zhangliqun said:
Ah, I see. I'll make an actual wiring diagram of this mod with the "adjustable" part, in case you want to try it, but it didn't have much affect from one setting to the other. However, putting in a switch, so that you can A/B the difference is worthwhile. I'll try to get something up tomorrow.
Artie
Zhangliqun
Questionologist
Re: I just can't stop: Mighty-Morphin Volume control.
It's okay, I think I've got it figured out now. But one question: I understand that the resistor apparently shuts out or at least reduces frequencies below a certain level (the mud) but since we want to keep all the treble, what does the cap do?
ArtieToo said:
It's okay, I think I've got it figured out now. But one question: I understand that the resistor apparently shuts out or at least reduces frequencies below a certain level (the mud) but since we want to keep all the treble, what does the cap do?
Artie
Peaveyologist
Re: I just can't stop: Mighty-Morphin Volume control.
Actually, its the cap that passes the highs. Contrast this to a tone control, where the cap passes the highs to ground, here we're passing the highs through - blocking the lows. The resistor allows some of the lows to bypass the cap. We don't want to block all of the lows, just attenuate them a bit.
The 500k value was determined simply by the fact that when I had the 500k pot in there, it sounded best with the pot all the way "up". So I just replaced it with the fixed value.
Artie
Actually, its the cap that passes the highs. Contrast this to a tone control, where the cap passes the highs to ground, here we're passing the highs through - blocking the lows. The resistor allows some of the lows to bypass the cap. We don't want to block all of the lows, just attenuate them a bit.
The 500k value was determined simply by the fact that when I had the 500k pot in there, it sounded best with the pot all the way "up". So I just replaced it with the fixed value.
Artie
