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Private member DiscussionGeneral Business

Fender, Schmender

Since most of us fix or make guitars, we have probably heard something about the cease and desist letters Fender has sent out concerning the Stratocaster. I thought I would offer some thoughts. As always, caveat emptor. There are three basic ways to protect intellectual property under Federal law. Patent, trademark, and copyright. Each protects different things, and has different underlying legal theories. Lets begin with pate…

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There is also a time limit to both Patents and Copyright (and Trademarks, though Trademarks can be renewed). Don't know how long they last in other countries, but Canada is normally 20 years. Copy…
Private member DiscussionElectric Repair

Gretsch Rally Hell

Just sharing some info to procrastinate my nth attempt at getting this thing together. and some venting. If you get one of these in with electronic issues, estimate high. Customer brought in a Gretsch Rally in pieces that he picked up from the last repairman (who died), and just wants it to play. Minor binding repair and a weirdly-angled zero fret were relatively easy to deal with. The dead electronics are the main problem.…

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I would even consider using 2.5mm TRS or TRRS connectors. (Similar to what Guitar Fetish uses on their pickups.) That would allow modularity of the components, and even easier installation. Only drawb…
Private member DiscussionElectric Repair

Double Humbuckers - Schematic?

Friends, I am looking for a wiring schematic that shows how to set up 2 humbuckers, each with their own Volume pot -- no Tone in this circuit. Everything I have has some type of Tone control in the circuit. Any suggestions? Thanks!

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i erased the tones. if you are leaving a switch out the output hot goes to both middle lugs of pots
Private member DiscussionElectric Repair

Fender P Bass-Plus -- Switch short?

Friends - I have an unexpected problem with my 1989 P Bass-Plus. I suspect that the Series-Parallel switch is grounding out (ie, short circuiting) when the 3-position pickup selector is in the P pickup position (disengaging the J pickup and all 3 pickups). I am waiting for feedback from Fender as to whether there is both a wiring diagram for this bass and the possibility of getting a direct replacement switch. Has anyone worked on these…

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Thank you for the update. I had completely overlooked the selector switch. Sorry to run you down the wrong rabbit hole, but at least you got practice troubleshooting and a nice switch for a future pr…
Private member DiscussionElectric Repair

Chinese Bass Preamp Installation

So, I have a chinese or DIY like 2 band bass preamp installed on a one pickup Ibanez bass. However, I'm stuck in the process of getting it connected. Basically the preamp has these connection cables: Red - 9v Black - Ground White - preamp out Blue - preamp in Yellow - Treble (?) Orange - Bass (?) The circuit has 1 pickup,1 vol, 1 concentric (bass/treble). I'm stuck connecting the concentric pot. Could you help me with that, please?

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Thank you so much, Gerry! Your help was very important. Long story short, it worked based on the G&L circuit with a little mod. I appreciate your help.
Private member DiscussionElectric Repair

Strat mini switch diagram

Hey y’all, I’ve got a customers Strat in, and it had a 30 year old preamp or boost circuit in it that died. So we’re gutting it and replacing it with a standard Strat kind of layout. However, the system was done with individual mini switches for each pickup. The customer would like it to function similarly. I’ve tried to do up the wiring from scratch but haven’t had luck getting it to work as I want. To put it simply, we just want it to be…

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Hey JD, I found this one on the Seymour Duncan Wiring Diagrams page. I believe this should be what you're looking for. I'll also leave a link below to the main Seymour Duncan Wiring Diagrams page, sin…
Private member DiscussionElectric Repair

Variation on the Gilmour neck PU always on Strat Mod (series linked)

Hi there! I am trying to find an schematic to make a circuit I'd like to try. That would be the Gilmour neck PU always on Strat Mod but in a way that connects that extra pickup in series with the rest instead of paralel like in the original gilmour circuit. The thing is I don't even know if it possible to do it that way or how many switches woud you need to do it in the simplest possible way. If you have any feedback, clues, tips or whate…

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I should mention for completeness that it is possible to rewire the internals of the pickups in order to add a separate wire to act as the pickup's ground/shield. It tends to be a pretty fiddly job th…
Private member DiscussionGeneral

Wiring help with unorthodox tele setup

Hey all, I could use some help with wiring up my telecaster. I'm fully aware this might be weird, but I thought it'd be a fun side project. So to get to it, first is the pickups. I plan on having a Staple P90 in the neck, a bill paisley secret agent pickup in the middle, and a normal tele pickup in the bridge. I'd like to have it wired mostly normal on a 3 way switch, where it's Neck, Neck + Bridge, Bridge. I'd also like the Neck P90 to…

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Hey Bryan This is a little unusual but I think it should be possible. The bridge and neck are wired to the 3-way as usual. There's a fixed 470K resistor between the bridge and ground. Using a 500K pot…
Private member DiscussionElectric Repair

2 volume wiring - strat

I recently did a rebuild on a Strat where I went with 2 pickups and a 3 way switch. Goal mess to have an independent volume for each pickup and a master tone. I also added a coil split for the bridge. I went pickups direct to volume pots, pots to the blade switch, and out of the switch to the tone, then to the jack. Issue is the volumes are not fully independent. When in the middle position if I cut the volume to either pickup it acts a…

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Try connecting your pickup hot wires to the middle lug of each volume pot. The output wire from volume pot to switch will then come from lug 3 on the pot. Essentially swap the IN and OUT wires on the…
Private member DiscussionAmps, Pickups, and Pedals

Grease Bucket Circuit Woes

I've done the Fender Grease Bucket Circuit mod on a lot of Strats and it always works. A customer recently brought in a 335 kit for wiring. It got 3-TV Jones humbuckers, each wired to a Seymour Duncan Triple Shot Mounting Ring, 3 separate volume controls and a master tone with the Grease Bucket circuit. My client wanted to see a clear diagram of the wiring, so I got GuitarElectronics.com to generate one. I've used them several times in…

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One other thing (although you've probably already taken care of it): Those caps and resistor can present a lot of exposed hook-up wires. Make sure everything around there is well insulated so that not…
Private member DiscussionAmps, Pickups, and Pedals

Low output from Gibson 498T

I've got a bit of a head-scratcher here. Gibson 498T bridge pickup with low output and thin sound. It ohms out to spec (14K), each coil individually measures fine but in situ it is very weak compared to the much lower output 490R in the neck. I even tried wiring it to it's own pot and jack outside of the circuit and it's still super weak compared to the neck. Any thoughts?

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sounds like the coils are out of phase with each other, or you have a dead magnet (unlikely)
Private member DiscussionElectric Repair

Curious Grounding Issue...

Hello fellow Looths, I had a question in regards to a curious issue from a customers guitar. The guitar was brought to me in part because the customer was having an issue where the guitar was intermittent and would ground out. It's a partscaster with an HH pickup configuration, one volume, one tone, 5 way switch, and the tone control splits the humbuckers. The pickups are quick connect Dimarzio's. I took the pickguard off and noticed tha…

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if it is the jack blade making contact with the shielding inside the jack hole, then you could try a puretone jack. It's got a smaller footprint and two smaller blades that contact the tip rather than…
Private member DiscussionAmps, Pickups, and Pedals

Troubleshooting Intermittent Pickup Output Drop

Hi. I recently got a strat where the middle pickup cuts out intermittently. I cleaned and, using a multimeter, tested all the components. As far as I can tell the pickup itself has an internal break somewhere. After testing the components I wired the middle pickup directly to an output jack. Tapping the top of the pickup caused the output to toggle on and off. I also re-soldered the leads at the pickup eyelets but that didn't resolve the…

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Ran into a similar issue recently with a dimarzio humbucker where it was going dead every now and then. The issue was a broken wire somewhere in the winds, it only worked when the pickup was in a spec…
Private member DiscussionElectric Repair

3 way rotary switch, volume & tone

Any electronic wizards know how this switch would be wired for a simple volume / tone circuit for two single coil pups? I cannot find a good answer using the internet search so far. A diagram for dummies would be amazing.

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Quick and dirty sketch. Think this'll work. You only need two of the three poles and you can think of those like the two sides of a standard Tele-style three way lever switch — there's a common lug an…
Private member DiscussionElectric Repair

50's 60's & 70's Japanese Guitar Database/Schematics

Someone in a Facebook group shared this site www.saturn-guitar-circuits.com and I wanted to pass along to this group. It's a non-comprehensive collection of the guitars coming out of post WWII Japan. The circuits are easy and nothing we haven't seen before. What's more interesting to me are the catalogued instruments. Being able to look at a pictorial guide and know the difference from something made in the Fujigen factory vs. Matsumoku…

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Great resource! I just found one I was wondering about. Thanks for posting this.