is this wiring scheme possible?

[Soopnotch]

Hey guys. I'm still dealing with some issues with my new JM, which I made another thread about. But I had another question about the wiring, and if it's possible to change it to something that I had in mind. Hopefully someone can help me out here.

What I would like to have is the rhythm circuit affect BOTH pickups, and have them operate normally in either mode. So essentially, with the switch one way, it engages one set of pots. And with it the other way, it switches to the OTHER set of pots. And the three way toggle would operate normally in both modes. So I would basically have two sets of pots to choose from, allowing me to switch between two different sets of pot values for the entire guitar.

So is this possible using the existing switch? Or would I need more circuitry for this? I'm familiar with wiring, but I've never worked on a JM before so this is new territory for me. Any info would be helpful, thank you.

[Futuron]

Yes, and you only need 1 side of the rhythm circuit switch. Very easy if you start from scratch.

[timtam]

Here's a schematic for that ...


... compared to the standard schematic for reference ...


Wiring diagram here (under "Switch it up"):
https://guitar.com/guides/diy-workshop/ ... t-guitars/
(but the minor changes needed are much easier to see in the schematic)

[MayTheFuzzBeWithYou]

I was interrupted in my reply… so someone was faster.
Anyhow. Here you go: should be the first schematic on the first page.

Shadoweclipse 13‘s Mastery Schematic Page

Lots of useful diagrams!

[Soopnotch]

Ah, excellent. I’m addition to the wiring, I was definitely wanting to upgrade the bridge and vibrato on this Squier, so these are resources are just what I was looking for. Thanks so much!

[B.T.]

Ah, excellent. I’m addition to the wiring, I was definitely wanting to upgrade the bridge and vibrato on this Squier, so these are resources are just what I was looking for. Thanks so much!

Here is a wiring layout I used that adds series/parallel options with push pull pots (on the lead pots).

With that no-load mod on the rhythm circuit's tone pot it makes it pretty versatile. I'll add you could use readily available 250k p/p pots in the lead circuit for more strat/tele type tones and flip it to the rhythm circuit for traditional Jazzmaster tones because with that no-load pot it turns the tone control off much like a 1M pot does at it's highest resistance. If you really wanted 1M with decent CTS push-pull pots in the lead circuit you could swap out the resistance wafers from a set of regular CTS pots, but then you would have dual redundant circuits what's the fun in that?

So with that circuit you are getting both the traditional lead & rhythm circuits in one. If I were to do it again I'd probably setup the phase switch as half-out-of-phase and mess with the values to get really close to that strat inbetweener position honk.

[Soopnotch]

Ah, excellent. I’m addition to the wiring, I was definitely wanting to upgrade the bridge and vibrato on this Squier, so these are resources are just what I was looking for. Thanks so much!

Here is a wiring layout I used that adds series/parallel options with push pull pots (on the lead pots).

With that no-load mod on the rhythm circuit's tone pot it makes it pretty versatile. I'll add you could use readily available 250k p/p pots in the lead circuit for more strat/tele type tones and flip it to the rhythm circuit for traditional Jazzmaster tones because with that no-load pot it turns the tone control off much like a 1M pot does at it's highest resistance. If you really wanted 1M with decent CTS push-pull pots in the lead circuit you could swap out the resistance wafers from a set of regular CTS pots, but then you would have dual redundant circuits what's the fun in that?

So with that circuit you are getting both the traditional lead & rhythm circuits in one. If I were to do it again I'd probably setup the phase switch as half-out-of-phase and mess with the values to get really close to that strat inbetweener position honk.

Another great suggestion. Thank you!

[Soopnotch]

Ok, I had one more request for an idea I’m having trouble figuring it out.

So it’s the standard circuit except the 3 way toggle works normally in both modes. So you can switch between two sets of pots for the neck pickup, but the bridge pickup only uses the lead circuit, and you can switch between pickups normally using the 3 way toggle in both modes.

To describe it another way, with the circuit switch off, the guitar works like a Tele with both pickups using one set of pots. With the circuit switch on, the guitar works like a Les Paul with each pickup using a separate set of pots.

I’ve been trying to sketch this out on a notepad but I can’t seem to figure out how to do it without isolating the neck pickup away from the 3 way toggle at some point.

Anybody have any ideas?

[Futuron]

You can do it but you need a far more capable switch than the dpdt in your guitar. A 4pdt will work.

There are quite a few things that need to change their connection, in order to toggle between your 2 options.

[Soopnotch]

You can do it but you need a far more capable switch than the dpdt in your guitar. A 4pdt will work.

There are quite a few things that need to change their connection, in order to toggle between your 2 options.

Ah ok, I figured it was something like that. Sounds like a pain. Guess I’ll pass on that for now. Thanks!