hauq
Rookie Solder Flinger
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Post by hauq on Apr 28, 2011 1:05:53 GMT -5
I apologize if this is a re-post, I searched through the forums and couldn't find what I am looking for. I need some help with wiring my guitar. Originally I have two double coil pickups, two volume, and two tone pots with a three-way switch. Someone suggested that I could install some push/pull pots in place of the volume pots to enable switching between single coil/double coil. After buying the new switches and trying to install them using this as a basic guide: www.seymourduncan.com/support/wiring-diagrams/schematics.php?schematic=1hum_1vol_splitI realize that I need some more help. I got the bridge pickup switch installed and "working" the volume turns the wrong way and I don't know why. Also the tone doesn't seem to be adjusting the tone but rather the pickup mix. So I made this cheap diagram showing everything where it is in the guitar and I hope someone can draw on it, or explain how it should be wired to work right (unfortunately I cant read electronic blueprints or weird squiggly designs). I want to wire it so I can push/pull the volume for each pickup to switch between single/double coil, and also have the three way toggle switch between neck/mix/bridge [glow=red,2,300]Cheap Thing I made [/glow]
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Post by newey on Apr 28, 2011 6:40:10 GMT -5
hauq-
Hello and welcome to Guitarnutz2!
Meaning it cuts one coil, as it's supposed to do?
It does so because you've wired it left-hand style. It's an easy mistake to make, but luckily, easily correctable. Just reverse the right and left hand wires to the V pot and all will be well.
I'm not sure what to make of this. Do you mean that it does so when the pickup selector is in the center, selecting both pickups? What does it do when only the bridge pickup is selected?
Your diagram doesn't help much, we'll probably need a picture or diagram of your wiring to be of much more help- especially if we're going to help you get the next part right.
You've done the bridge pup, so far so good. However, if you wire the neck push/pull switch exactly the same as the bridge, you will be selecting the same coil there as the one you selected at the bridge, which means that, when both push/pulls are pulled up and you have the selector in the center position to get the "both single-coil" sound, it won't be hum-cancelling.
To get hum-cancelling, you need to have one of the two cut to the other coil (i.e., if the bridge switch cuts it to the screw coil only, the neck needs to cut to the slug coil).
There is a solution to that issue, it's easily done, but it means knowing your wire colors and which ones are wired where originally.
Are these SD pickups (since you're using their diagram)? If so, they should have a diagram showing 2 push/pulls to cut coils on both pickups. This should show you the different wiring for the one so as to select the opposite coil.
It is also (sometimes) possible to modify one pickup to make both screw coils opposite from each other, so that you can have both pickups use the adjustable coil in single-coil mode. But this involves dismembering one of the pickups to flip the magnet around, and is probably more than you want to tackle right now.
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Post by JFrankParnell on Apr 28, 2011 9:04:44 GMT -5
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hauq
Rookie Solder Flinger
Posts: 2
Likes: 0
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Post by hauq on Apr 28, 2011 18:33:27 GMT -5
Thanks Frank, I saw that diagram on there but I was planning on putting the push/pull switches on the volume knobs rather than the tone. Maybe re-thinking that decision now. I have 250K push/pull switches rather than the 500K ones in the diagram, does that matter? I got the bridge pickup switch installed and "working"
Meaning it cuts one coil, as it's supposed to do?
Yeah it cuts the coil but the volume is turning the wrong way, I tried switching the white and the ground from one side to the other and when I tried that I had no volume control it was always maxed And yes, these are Seymour Duncan pickups, they are original with the guitar Here is a diagram showing exactly how it is wired right now (sorry i cant get a picture the wiring is too tight). I haven't yet installed the second push/pull. I hope its clear enough.
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Post by JFrankParnell on Apr 28, 2011 19:04:34 GMT -5
I'll just say that it doesnt matter which pot you put the pull/push on. The pot and the p/p switch are 2 completely unrelated things, they are just glommed together for your convenience. Also, in the SD diagram, the pots are shown from the bottom, therefore, the left/right lugs do make a difference, but the center is the center. If that makes sense. So if you try to switch wires around, keep the wires going to the switch on the center and move the black pup wire to the other side. Then, the unused lug goes to ground (usually soldered to the case of the pot).
I'll let the other guys who know more about humbuckers and splitting, etc, take it from there, esp as concerns the 250/500k question. But, I think youre going to get recomended to get 500k.
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Post by newey on Apr 28, 2011 20:52:40 GMT -5
This suggests that, when you switched them, one of the connections is bad- likely the ground connection. I'd hit both ends of the ground connection with the soldering iron again.
500K pots are the usual for HBs, but there's nothing about that written in stone. You can use 250K ones. It may be a bit darker than the 500Ks; some folks like that, others don't.
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