amigauser
Rookie Solder Flinger
Posts: 5
Likes: 0
|
Post by amigauser on Apr 8, 2014 23:53:35 GMT -5
Hi Guys,
New member with a question.
I recently brought a Chapman ML1 which I have taken all the electronics and pickups out of.
I have put in a Seymour duncan Custom in bridge, vintage rails in mid, cool rails in neck.
The volume is a push pull pot.
I guess my question is how should i wire this up, seeing as I have the push/pull pot.
I was thinking for normal in position (pot in), switch down=bridge pickup, switch mid=middle pickup, switch up=neck pickup
For the pull position (pot out) , can I have switch down=bridge/mid, switch mid=all 3 pickups, switch down=mid/neck?
If not what is the best way to use the pull position and if so can anyone suggest any wiring diagrams.
Thanks in advance.
|
|
|
Post by JohnH on Apr 9, 2014 4:06:37 GMT -5
Hello and welcome to GN 2.
I think there may be a shortage of switching power. You could do N, N+B, B on the 3-way, then use the push pull to add M?
|
|
|
Post by newey on Apr 9, 2014 11:44:41 GMT -5
amigauser- Hello and Welcome to G-Nutz2!Was this how it was wired originally? I ask because a Strat/Tele lever switch could do that wiring for three pickups, but a 3-way toggle type switch (like on an SG or LP, for example) cannot. So, before we go down the garden path here, we should be clear about what sort of switch you have. JohnH's idea of using the P/P as a mid on/off switch is a good one regardless, however, of the type of 3-way switch. It's simple to do, and doesn't involve any more flipping of switches to get the sounds you want than what you have proposed. And, if your 3-way is a toggle type, it is probably the best that you can do anyway. I also see that amigauser is another Oz resident. You're in good company, ami, the Aussies probably already outnumber us Yanks around here!
|
|
amigauser
Rookie Solder Flinger
Posts: 5
Likes: 0
|
Post by amigauser on Apr 9, 2014 17:55:11 GMT -5
Haha good to see some fellow Aussies around. Thanks heaps for the replies.
Yes this has a standard gibby 3-way toggle switch, nothing fancy.
Was just looking at my switching options. Might even take out the push/pull now and just go standard, bridge / mid / neck config and keep it simple for this guitar.
Just exploring options, seeing as it already has the push / pull in there.
Be nice to be able to split the mid/neck somehow.
Open to ideas and advice
|
|
amigauser
Rookie Solder Flinger
Posts: 5
Likes: 0
|
Post by amigauser on Apr 9, 2014 18:17:12 GMT -5
After some thought I like what JohnH suggested. Works for me, and doesnt sound complicated.
Would you guys have a wiring diagram for that config?.
The 3 pickups are all 4-conductor seymour duncan types.
|
|
|
Post by newey on Apr 9, 2014 21:04:30 GMT -5
It's still not exactly clear to me how you can get the middle pickup in the center position if it's a regular 3-way toggle switch, since the center position is always N + B on those switches. Unless I'm missing something, JohnH's idea is the only way to get your specified choices with that switch. The toggle is wired for N/N+B/Br, just like any of thousands of 2 HB guitars with a toggle. The P/P pot just turns the middle pickup on/off, in conjunction with whatever is selected by the 3-way toggle.
You won't get the middle pickup by itself with this scheme, though. There is a potential fix for that, however. You could have the middle pickup bypass the master volume and tone, so that you could turn the middle pup on with the P/P switch, then turn the volume down to 0 on the other 2 pickups.
To wire JohnH's idea, as I noted, the 3-way gets wired as standard. The P/P would be wired on only one side, using either the 3 right hand lugs, or the 3 left-hand lugs.
On the P/P, wire from one upper lug to the + output, or to the CW lug of the volume pot if you want the pots to affect the mid pickup. Middle lug of the P/P is the + from the mid pickup ( - mid lead goes to "ground"), and the bottom lug of the P/P is grounded.
Thus, pulling up on the P/P connects the mid + to output +, either directly or through the pots. With the P/P down, the mid pup + is shorted to ground (thus eliminating the "hanging coil" issue).
|
|
amigauser
Rookie Solder Flinger
Posts: 5
Likes: 0
|
Post by amigauser on Apr 9, 2014 21:39:38 GMT -5
Thanks heaps Newey.
To be honest im not worried about running the middle pickup on its own. Never do that even on my strats.
So with JohnH's solution and your wiring scheme, with the push pull up, it is possible to have neck/mid together as long as its wired correctly as per your instructions and the 3-way is in the Neck position?. I would like the volume to control the mid as well, so I will put it to the volume pot instead of straigth to output as you described.
Thanks again.
|
|
|
Post by newey on Apr 9, 2014 22:20:37 GMT -5
Yes, and in the center position on the toggle, the P/P gives you all 3 pickups in parallel, N+M+B.
Best would be if you sketch it out before wiring, so we can double check your work.
|
|
amigauser
Rookie Solder Flinger
Posts: 5
Likes: 0
|
Post by amigauser on Apr 9, 2014 22:59:10 GMT -5
Here we go mate. Have I got this right?. This image is the standard way I should wire up everything without the mid pickup?. Here is how I should wire up the push pull pot bringing in the middle pickup?. I am assuming it matters which side of the p/p I put these wires on?. I want the pull up position to engage the middle pickup / down for normal operation. Have I got the right side here?. Thanks again.
|
|
|
Post by newey on Apr 10, 2014 5:16:06 GMT -5
Very good for a first attempt, except for 2 things:
First, if you want to have the volume and tone on the middle pickup, you want to wire the output from the P/P to the CW lug of the volume pot (the same place where the toddle switch center lug is connected). The center lug of the volume pot connects to output, so if you connect the P/P there, you'll be bypassing the pots.
Second, you need to reverse the upper and lower wires on the P/P if you want the middle pup to be "on" with the knob pulled up. It doesn't matter which side of the P/P you use ("sides" meaning right versus left), as both sides are identical.
Each side, right and left, is a separate pole. Here, you're only using one of the two poles. For each side, the center lug is the common lug.
With the knob pushed in, each of the two center lugs connects to the lower lug on each side (we'll call the lugs furthest away from the shaft of the pot the "lower" lugs). Pulled out, the center lugs each connect to the upper lugs on each side (the lugs closest to the shaft of the pot).
So, bottom lug gets grounded to short the middle pup when the knob is down, upper lug goes to output so the mid pup operates when pulled up.
|
|