Alternate Reality XII - 4-way switch?

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akpasta
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Alternate Reality XII - 4-way switch?

Post by akpasta » Sun Nov 15, 2020 4:08 pm

Hi All,

I have a vintage XII and love the 4-way rotary switch. The first three settings on the switch are your normal 3-way (neck, both, bridge) but the 4th is like out of phase or something and sounds kinda slinky and sharp, which I hated at first but have come to really like for for certain sounds especially cutting through a mix.

I bought an Alternate Reality reissue XII, switched out the dull pickguard and installed some Curtis Novak pickups and they sound awesome of course. Here's a photo - https://drive.google.com/file/d/1nf8wQv ... sp=sharing

I accidentally wired the middle setting of the 3-way switch like the 4th position on the vintage 4-way, and I like it, but I also need the sound of both pickups normal. So I'd like to wire up a 4-way switch just like the vintage xii.

I'm pretty novice at wiring up guitars. Does anyone have advice on what kind of switch I could pop right into the pickguard, without having to route anything underneath?

Thanks!

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timtam
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Re: Alternate Reality XII - 4-way switch?

Post by timtam » Sun Nov 15, 2020 7:35 pm

IIRC the 4th position on the vintage XII is the two pickups in parallel but out of phase (in addition to the 'usual' two in parallel option).
https://en.wikipedia.org/wiki/Fender_Electric_XII
https://www.fender.com/articles/gear/ri ... ic-guitars

From what you describe it's possible that you might have wired your 3way in parallel / out of phase, ie thin, quacky ? If you swap the hot and ground from one pickup at the switch you'll hear what the opposite phase sounds like. It will be fuller if you were originally OOP.

Vintage wiring of the 4way is described in the resources below. The rotary switch I believe is 2P4T.

https://www.vintageguitarandbass.com/fe ... t_1968.php
https://www.offsetguitars.com/forums/vi ... 29&t=17272
https://www.offsetguitars.com/forums/vi ... 105#p59948

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Bradley-Jazz
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Re: Alternate Reality XII - 4-way switch?

Post by Bradley-Jazz » Mon Nov 16, 2020 2:17 am

If you can't find the proper switchcraft type rotary switch (like I couldn't), you can use a much cheaper plastic rotary like this Alpha. https://www.ebay.co.uk/itm/Alpha-Make-B ... SwTd9fXKay. I then put a nice Dakaware switch lever on. Works well, if probably not quite the feel of an original switch.

I used this wiring diagram - [/url]https://www.offsetguitars.com/forums/vi ... 576845[url]

This gave me the three regular positions plus the out of phase, although the two both-on positions sit next to each other in the centre of the switch rotation. Not problem for me, but be aware if you want exactly the same as a vintage XII.
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matbard
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Re: Alternate Reality XII - 4-way switch?

Post by matbard » Wed Nov 18, 2020 12:10 am

You can't find the original switch as it was custom made for Fender in the '60s.

I found an original one on DevilBay years ago, when I completed my Electric XII replica.

The original switch, as said before has these functions:

1 - neck pickup
2 - both pickups in parallel, in phase
3 - bridge pickup
4 - both pickups in parallel, out of phase

You can easily wire an Alpha 4-way rotary switch to achieve the same functions, but not in that sequence.

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daCod
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Re: Alternate Reality XII - 4-way switch?

Post by daCod » Wed Nov 18, 2020 5:14 am

here's the switch i used in mine...

https://www.amplifiedparts.com/products ... 4-position

and here's the diagram i worked off of. worked perfect!

Image
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Bradley-Jazz
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Re: Alternate Reality XII - 4-way switch?

Post by Bradley-Jazz » Wed Nov 18, 2020 9:33 am

here's the switch i used in mine...

https://www.amplifiedparts.com/products ... 4-position

and here's the diagram i worked off of. worked perfect!
Yep, that's the diagram I used, also successfully.

Your switch is much more solid looking than mine though - I couldn't find suitable metal switches in the UK or EU.
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akpasta
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Re: Alternate Reality XII - 4-way switch?

Post by akpasta » Wed Nov 18, 2020 9:41 am

Awesome! I bought that switch and found the lever on reverb. I’ve never wired up one of these, can anyone share a photo of what it looks like actually wired up? How do you jump the same wire from post to post like the above diagram?

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Re: Alternate Reality XII - 4-way switch?

Post by Bradley-Jazz » Wed Nov 18, 2020 9:50 am

Awesome! I bought that switch and found the lever on reverb. I’ve never wired up one of these, can anyone share a photo of what it looks like actually wired up? How do you jump the same wire from post to post like the above diagram?
I don't have a picture, but for the adjacent links, I used bare solid wire (e.g. offcuts from capacitor legs) and threaded it through the holes in the legs before soldering. Where it straddled another connection, I either used a little bit of regular insulated wire (fiddly), or the bare wire, but with some heat shrink insulation around it. I also put heat shrink on as many of the incoming/outgoing connections as possible, just to be on the safe site.

On the switch I used, the legs were also flexible enough to gently bend some in and some out to give more clearance as one wire would pass another.
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