Author Topic: overcomplicated wiring for guitar!  (Read 1593 times)

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Offline ELS122Topic starter

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overcomplicated wiring for guitar!
« on: October 10, 2019, 03:06:16 pm »
I am trying to make a circuit for a guitar that would be able to get every possible sound out of 3 "humbucker" pickups. it uses 3 4 pole 6-way rotary switches 3 volume controls that and tone control that is meant to be switchable from high pass to low pass. the tone control really seems that it would be a problem and hard to make it work and also would mixing a p90 pickup whit a humbucker work?
here is the public schematic for it: https://easyeda.com/evalc2636/all-config-pickups
« Last Edit: October 15, 2019, 03:04:17 pm by ELS122 »
 

Offline 001

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Re: will this work?
« Reply #1 on: October 10, 2019, 03:57:15 pm »
I am trying to make a circuit for a guitar that would be able to get every possible sound out of 3 "humbucker" pickups. it uses 3 4 pole 6-way rotary switches 3 volume controls that and tone control that is meant to be switchable from high pass to low pass. the tone control really seems that it would be a problem and hard to make it work and also would mixing a p90 pickup whit a humbucker work?
here is the public schematic for it: https://easyeda.com/evalc2636/all-config-pickups

Oh boy
All guitar guys I hear for last 40yrs were equipped with stock or duncan humbuckers since all additional wirings kills  sound ( signal/hum ratio is bad).
 

Offline Benta

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Re: will this work?
« Reply #2 on: October 10, 2019, 04:47:27 pm »
With all those switches, you won't have time to play the guitar.   :-DD

Personally, I found the Stratocaster switch brilliant (in both senses).

 

Offline ELS122Topic starter

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Re: will this work?
« Reply #3 on: October 10, 2019, 06:28:35 pm »
ok, so I updated the schematic, remove the middle pickup. put a WORKING tone control and did some other stuff. I want to make this circuit work whit only 2 rotary switch but that would probably mean having to put like a 20 way 8 pole switch in my guitar which wouldn't fit very well I think!
https://easyeda.com/evalc2636/all-config-pickups
 

Offline SiliconWizard

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Re: will this work?
« Reply #4 on: October 10, 2019, 07:04:32 pm »
Why not, Brian May had guitars with many switches, so you're not first. ;D (He even has a shop now, so you can take a look: https://shop.brianmayguitars.co.uk/ )
 
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Offline ELS122Topic starter

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Re: will this work?
« Reply #5 on: October 11, 2019, 02:41:18 pm »
So this is my new design, I just don't know how to add the volume (blend) control for each pickup since I have an in/out phase switch and series/parallel switch meaning I can't have a ground on the volume control so  |O  :palm:  and the new circuit is on sheet 3 here: https://easyeda.com/evalc2636/all-config-pickups
 

Offline ELS122Topic starter

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Re: overcomplicated wiring for guitar!
« Reply #6 on: October 15, 2019, 03:09:14 pm »
so I changed some things over time, figured out I think the volume/blend control for it and got pretty clever (I think) tone controls utilizing the volume pot also for tone.
so my question was would the 'blend' control work? and the tone controls are a WIP so I'm also not sure about those! if the blend control doesn't work can you give me some suggestions on how to have a way to blend between the pickups? cause I don't want to have like 30 knobs on my guitar. it is designed to use all and no more knobs that are already in place!
schematic is on sheet 3 btw:https://easyeda.com/evalc2636/all-config-pickups
 

Offline SiliconWizard

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Re: overcomplicated wiring for guitar!
« Reply #7 on: October 15, 2019, 03:11:29 pm »
Use stacked pots.
 
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Offline ELS122Topic starter

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Re: overcomplicated wiring for guitar!
« Reply #8 on: October 15, 2019, 03:18:33 pm »
Use stacked pots.
WOW. HOW can I have NEVER thought of that. I think I just forgot about them thanks for reminding me of those!

but the tone is still a question
 

Offline ELS122Topic starter

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Re: overcomplicated wiring for guitar!
« Reply #9 on: October 15, 2019, 03:33:03 pm »
actually no... those stacked push-pull DPDT 500k/1M pots are really hard to find. I found a few on some shady websites that I wouldn't trust buying. I'm gonna look somewhere else for them.  :-//
 

Offline ELS122Topic starter

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Re: overcomplicated wiring for guitar!
« Reply #10 on: October 15, 2019, 04:00:00 pm »
ok so I found some stacked push-pull type pots on amazon so I'll probably be okay whit that!
 

Offline Bassman59

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Re: overcomplicated wiring for guitar!
« Reply #11 on: October 15, 2019, 05:25:35 pm »
ok so I found some stacked push-pull type pots on amazon so I'll probably be okay whit that!

Stewart-MacDonald has a selection of push-pull (and other) pots.

Probably pricier than Amazon but they offer excellent customer service.
 

Offline ELS122Topic starter

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Re: overcomplicated wiring for guitar!
« Reply #12 on: October 15, 2019, 05:49:43 pm »
they don't have double ones tho, bourns pro audio had those but they don't sell them anymore. AFAIK no one is making these push-pull stacked pots anymore. I bought prebought ones from eBay. paid 20$ for one of them so it wasn't cheap but I needed only 1
 

Offline ELS122Topic starter

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Re: overcomplicated wiring for guitar!
« Reply #13 on: October 16, 2019, 04:21:31 pm »
So would this tone circuit work for what I'm building?
 

Offline Bassman59

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Re: overcomplicated wiring for guitar!
« Reply #14 on: October 16, 2019, 05:02:42 pm »
So would this tone circuit work for what I'm building?

What are you trying to achieve, exactly? I find I just leave my tone controls wide open (no roll-off) and I switch to the neck pickup for a darker sound.
 

Offline ELS122Topic starter

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Re: overcomplicated wiring for guitar!
« Reply #15 on: October 16, 2019, 05:53:14 pm »
I want the volume control to bleed of low frequencies while keeping the high frequencies. and I want the tone control to start bleeding of the treble when you start to turn it and at the last 1/4 turn, I want it to start bleeding out the mids. so basically I want a variable capacitor from a potentiometer.  so basically the volume control I have figured out, I just need help whit the tone control bleeding of high and then mid frequencies

and yes I know it's overly complicated and it's because I don't want to have 50 knobs for each thing. I want it to look stock while being as versatile as it can be!

note: this description doesn't apply for this circuit cause I gave it a little thought and wondered why did I need a tone control that bleeds of low frequencies if I already have one  :palm:

oh and the volume has a slight mistake, I need to connect the tone circuit to the wiper of the pot!
 

Offline ELS122Topic starter

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Re: overcomplicated wiring for guitar!
« Reply #16 on: October 17, 2019, 03:00:56 pm »
what would adding a resistor across the capacitor do? I've seen something like that done before
 

Offline ELS122Topic starter

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Re: overcomplicated wiring for guitar!
« Reply #17 on: October 17, 2019, 03:56:39 pm »
ok this will probably be my final design, I might use a 7 trow switch so I can completely turn of each pickup or disassemble the blend pot and put some insulation at the end of each element so the pickup can be switched of meaning that only 1 would be active!
https://easyeda.com/evalc2636/all-config-pickups
 


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