Need a wiring guru to double check my diagram

NoOnesFang13

Active member
Its been a long time since I have lurked here, but I'm working on a pretty complicated diagram for my Bass VI type instrument. Its going to have a Hawkbucker in the Bridge, SD Rickenbacker Bass Bridge in the Middle (in the Rickenbacker bridge position relative to scale) and a SD Rickenbacker Bass Neck Pickup. I already contacted the custom shop to see i cant then them on "traditional" baseplates for the mid and neck. Mustang Switches for each Pickup, 6 position rotary switch, blend, and mono/stereo out. Volume is a double gang push/pull for a stereo master volume, tone is a dual concentric pot for individual tone control over either side of the blend pot. The blend pot is intentionally ungrounded to the pins to make the transition smoother, even though it will not fully remove the signal from either pickup in the extreme positions. I could have made it easier on myself by just doing 3 volumes, but i think functionally I like how this layout works more.

Assume all pots are grounded. I wrote out the rotary switch as a matrix to make it easier to read.

Mustang Slider switches are DP3T
Up: split to north coil on bridge and neck, and south coil for middle
Middle: Series
Down: Parallel

Mono (Push)
1 Bridge
2 Bridge--Blend--Mid
3 Mid
4 Mid--Blend--Neck
5 Neck
6 Bridge Mid--Blend--Neck

Stereo (Pull)
1 Bridge (Dual Mono)
2 Bridge (Tip)--Blend--Mid (Ring)
3 Mid (Dual Mono)
4 Mid (Tip)--Blend--Neck (Ring)
5 Neck (Dual Mono)
6 Bridge (Tip) Mid (Tip)--Blend--Neck (Ring)

Thanks for the help!
 

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That will take a little time to analyze, but in the mean time, here's a couple things to think about.

Your 250k blend pot probably won't do much. Normal blend pot wiring treats it as a voltage divider. Your idea treats it as a rheostat, or variable resistor. That means you'll be limiting current, rather than controlling voltage. Since a good pickup provides about a millionth of an amp, on a good day, your 250k in series will do very little. You really need to connect those grounds. Because of that, I'd use a 500k blend pot to minimize pickup loading.

Secondly, converting the Ric bass pup to a standard humbucker base is dirt simple. You'll need these two parts from Mojotone:

Baseplate 53mm

Fiberboard 53mm

The fiberboard is important. It allows you to reuse the original two bobbin mounting screws without poking into the bobbin. Be sure to cut the "ears" off of the fiberboard.

Here's my Schecter Blackjack with the Ric Bass pickup mounted in the neck.
 

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Grounding the blend shouldn't be a problem so that's something I will change. Thanks for the suggestion about the baseplate it will certainly save some money, in which case I could probably just end up using the regular Rickenbacker neck pickup and only order the Hawkbucker from the CS
 
That's actually the Ric bridge pup. The neck pup is completely different.

Oh . . . I see what you meant. If you do the bridge pup in the middle you'll also have to drill a couple holes in the new baseplate and fiber part. But you'll see that if you do it.
 
That's actually the Ric bridge pup. The neck pup is completely different.

Oh . . . I see what you meant. If you do the bridge pup in the middle you'll also have to drill a couple holes in the new baseplate and fiber part. But you'll see that if you do it.
I understood what you meant. And I imagine the Rick Bridge as a neck pickup has a lot of clarity to it. When I originally reached out to SD about it they basically said i had to go custom shop. I probably should have asked on her about it to be fair. I don't really like playing my "normal" basses with a pick but when i looked more into Bass Vi I got some serious GAS. I was originally going to piece together a warmoth short scale jazz bass body and rout it myself, then use one of their bass vi necks. But i eventually found the guitar i ended up buying an Aria J-B'Tone. 30" scale Offset Telecaster kind of guitar. Already routed for a bridge humbucker and under the guard the neck pickup is also a humbucker rout. I need to rout our the middle position, and there is JUST enough room for it to be the "correct" location of a rickenbacker bridge pickup when converting the scale length. When i was considering pickups I had a rough time of it as most people either have traditional bass vi jaguar type pickups, or go high output which I'm not a fan of in general. I also can probably count on 1 hand how many middle pickup positions on normal guitars I have used. I also wanted a different sound than my other basses can do, and it seemed serendipitous that the Duncan Rick pickups were rails and not 4 pole pieces. So the Hawkbucker seemed like a logical fit for the bridge pickup. Unfortunately i couldn't find a single sound sample of that particular pickup, even the Rickenbacker pickups only have a couple videos that have a decent recording.
 
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