Waz's MMB-4

[wazkelly]

Agree with trying blend pot options first as not much room left in control cavity.

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[RalphH]

Here's another wiring option to consider that was employed on the G&L L1000 series basses of the late 1990's. This setup allows two humbucking modes plus a single coil option.

The pickup on the L1000 appears to be wired the same as the GFS, (3 conductor series wired humbucker with centre tap + case braid) so theoretically this should work for you too.

The G&L had a 3 position, 2 pole toggle switch which are quite expensive (and hard to find) so during my experiments I configured a 2 pole, 3 position rotary switch to do the same job. Looks good too.
The rotary switches I've used are only 5 bucks from Jaycar, and the only customising is the reworking of the shaft to accept a fluted knob. And yes- they fit (at least in my case) in the cavity of the MMB bass with a bit of minor sanding.

[Simon Barden]

Surely Position 3 will be out of phase with itself, so give a very thin sound that's probably not bothering with? And as the current flows the wrong way round just one of the coils, then it won't be humbucking (I think).

[WeirdBits]

This should do it for an On-Off-On, series in the middle position and shorts the respective coils when up and down:

[geddyfan]

This should do it for an On-Off-On, series in the middle position and shorts the respective coils when up and down:

Hi Waz...this is what I did on my RC-4 build as well. The result was less than impressive from my POV, but it seems to work. I need to make some adjustments, tho (pickup height)...maybe they'll improve the result when I'm done? We'll see...

[wazkelly]

Thanks Scott, i will give that a go.
Cheers, Waz

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[wazkelly]

Thanks mate

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[wazkelly]

Wired up the DPDT mini switch earlier tonight and that works & sounds best out of all the combinations tried so far.

Thanks guys for all your ideas, guidance & assistance.

Next job is to dig a bit more timber out in the control plate cavity as there is a square plastic terminal block for belcat pre-amp with lots of wires coming and going that is preventing everything fitting in an already cramped space. Don't own a dremel and not keen spending the coin for just this one job. Might have to use a chisel instead unless someone has a bright idea for cutting/recessing at 90 degrees inside a 30mm wide trench which is just on 38mm deep?

For it it sit vertical, thickness is about 6 or 7mm thick whilst horizontally I would need to go about 18 to 20mm deep and drilling in via jack socket hole seems most logical way to go? Will ponder this for a few days before attacking it.

[ozzbike]

Wired up the DPDT mini switch earlier tonight and that works & sounds best out of all the combinations tried so far.

Thanks guys for all your ideas, guidance & assistance.

Next job is to dig a bit more timber out in the control plate cavity as there is a square plastic terminal block for belcat pre-amp with lots of wires coming and going that is preventing everything fitting in an already cramped space. Don't own a dremel and not keen spending the coin for just this one job. Might have to use a chisel instead unless someone has a bright idea for cutting/recessing at 90 degrees inside a 30mm wide trench which is just on 38mm deep?

For it it sit vertical, thickness is about 6 or 7mm thick whilst horizontally I would need to go about 18 to 20mm deep and drilling in via jack socket hole seems most logical way to go? Will ponder this for a few days before attacking it.

Waz,

I have a green shed brand dremel style tool....with a flexible extension....and heaps of fittings.

I am at work....residential care in a community home in Bells Reach.

I am supposed to finish sometime Friday.

I will be home over the weekend....either drop in and grind away...it is permanently setup on my desk....or come borrow the machine.

I only use the sanding attachments...no idea what the rest do. 😎

[DarkMark]

I’m not usually one for product endorsement but I brought a Dremel and it’s my favourite toy at the moment. As an engraving tool it is 100% better than the engraving pen I was previously using.