Post by bobpittman on Sept 26, 2007 14:48:04 GMT -5
I want to rewire a Les Paul Studio so the volume controls are decoupled when the selector switch is in the middle position. When I rewire it the usual way, the volume controls work independently but the sound is thin. If I remove the grounding on the volume pots, it is better but I cannot turn the volume completely off. (I got these suggestions from the GuitarNuts website)
Are there any other options for wiring to have the volume controls independent when the selctor switch is in the middle position?
............... Are there any other options for wiring to have the volume controls independent when the selctor switch is in the middle position?
The short answer is no, not without some fancy footwork and more than a modicum of head-scratching.
In brief, the current selector cannot choose to disconnect anything except one of the two pickup's hot leads. Modifying it may be possible, such that it can also control the volume pot ground connections, but that's messy, both to contemplate and to carry out.
The longer answer is yes, if you're willing to make some changes to your axe. If that's feasible for you, then you could substitute a rotary switch with several poles that would then let you make or break multiple connections at the same time. ChrisK has more than a few suggestions on that score, ask him politely for further details, and you won't be disappointed.
Last Edit: Sept 27, 2007 21:55:14 GMT -5 by sumgai
Rule #1: All Lives Are Final. Make sure that the life you have just been issued is appropriate for your needs, before departing the womb.
Rule #2: In case you don't like the life you have, see Rule #1.
While this response may seem to be brash and somewhat condescending, it is not directed at anyone in particular, especially you bobpittman. You did the favor of asking the question and prompting me to think aboot it and respond.
Rather, it is a response in general to a question oft asked, as to which I have never understood why.
When I rewire it the usual way, the volume controls work independently but the sound is thin.
What does "thin" mean? Not enough bass?
Does it become "thin" once a volume is turned down a little bit?
If I remove the grounding on the volume pots, it is better but I cannot turn the volume completely off.
Yep, cuz' it ain't a pot, but a rheostat now.
I want to rewire a Les Paul Studio so the volume controls are decoupled when the selector switch is in the middle position
This is a question that many have asked and I've until now neglected to counter with why?
In the middle position, both of the pickups are supposed to be on to some degree. Otherwise, it would be called the neck or bridge position. Now, to be fair, there is indeed merit in having only the bridge or neck selected at a reduced volume level for remote amp control.
So, either the initial/regular way of wiring with inter-coupled (this was just an opportunity to use inter-coupled in a sentence) is actually OK (cuz' if'n one pickup volume was turned down enough to affect the other pickup in the middle position, that there pickup position would be called (nearly) off and moot in the position specific thereto.
If the usual way of rewiring to eliminate inter-coupling is too "thin" (depending on the definition thereof), there may be ways of padding the volume pots with bypass caps to effect treble preservation like the, uh, well known treble preservation mod for volume controls.
If the two-terminal (removed grounding/rheostat) mode is better, then use it since all the way off is not of use/needed in the middle position (by my definition of middle as in both to some degree), nor in the position specific to that control/pickup (as in nearly off and moot).
Now, getting back to the initial/normal way of LP wiring (the wiper's go to the selector), if one can find a value of resistance attached in series to the normally grounded lug of each volume pot that effects the minimum level desired vs the maximum inter-coupling desired, one can effect the best of both worlds (well all three if'n yer not on a tone diet).
In a related vein, some oft indicate that their tone controls have too much effect when turned all the way down. Fender have even gone so far as to """""invent""""" the GreaseBucket tone control to alleviate such tonal debauchery (it basically has a 5 to 10 K resistor in series with the tone pot ground lug). However, after much research and petition to the potentates of potentiometers, I have been informed that one is free to set them at any position so desired, even those not at the extremes of rotational possibility.
If such end of rotational travel effect limitation IS needed for easy performance registration of said controls, then the use of such padding resistors may well be in order.
While the LP style of controls does have three selectable positions, there are at best only two mutually exclusive modes possible. One can set the level and tone of either pickup or one can set the level and tone of one pickup and the middle blend. Only if really lucky, can one find true happiness with all three positions.
When I need more flexibility in one tune, I use either my Godin 3-voice guitar with my VG-88, or my Variax.
Hmmm, an interesting "opportunity" has occurred to me. If the three-pickup LP selector switch is used with two pickups, which is equivalent to the pretentious DPDT ON-ON-ON/DPDT Center-ON/SP3T Center-ON switch www.stewmac.com/freeinfo/I-1228.html then, when placed in either end position, an additional circuit selection effect can be realized. As to exactly what that might be.....? I'll have to knoodle a bit.
....here's a thought.
Presumed 1. Not used/full-on bridge 2. Output jack 3. Neck pot output 4. Bridge pot output 5. Output jack 6. Not used/full-on neck
If that there unused terminal on each end of the aforementioned switch is connected directly to the output of the other pickup, a full-on effect (as in bypasses the volume pot unless turned way down) can occur. Conversely, if this is connected to the top tone pot lug, when the tone pot is at "10" (I really don't care/want to hear if'n yers "go to 11" unk) a full-on effect will occur. This will work best with the rheostat mode as no inter-coupling will occur. And, if the tone pot method is used, it will function as a volume pot at the beginning of its travel and a tone pot thereafter.
Last Edit: Sept 27, 2007 19:48:57 GMT -5 by ChrisK
Post by bcrichfan86 on Jul 1, 2008 10:57:00 GMT -5
You know I think I actually wrote a topic VERY similar to this, I wrote about wanting my bc rich warlock wired to 2 volumes and 1 tone, it turned it to be an expensive experience. I switched out my EMGs for a pair of Seymour Duncans (dimebucker and jazz) cause I thought maybe cause my other pickups were active, they couldn't give the sound I wanted which was to have it in the middle position, turn one volume down and still be able to still hear the other pickup. Well since I didn't know alot about wiring then, I asked my guitar tech to switch to passive and have it wired like a "les paul" cause I thought thats how a les paul is wired....I got the same result once I got it back.
Later on I did some research and didn't like the passive tone, but read that I could've kept my emgs, but should have told my guitar tech to have it wired like an "explorer", cause after getting EMGs back in my guitar i had it wired like that I was VERY VERY glad to have what I wanted.
In short, just wire your guitar like a gibson explorer does.