PJ - Series/Parallel wiring

[Serginhobass]

Hey everyone! 

 

I’m planning to rewire my Yamaha BBP35 (PJ configuration) and would love to get some feedback from those more experienced with bass wiring.

 

Here’s what I’m aiming for:

Volume: 250K push-pull pot (for series/parallel switching between P and J pickups)

Blend: CTS EP-6386-000 500K MN taper pot

Tone: ToneStyler Bass 10

 

My goal is to have:

• Push in → pickups in parallel (standard PJ setup)

• Pull up → pickups in series (fatter, more powerful tone)

 

I’ve drawn up a wiring diagram showing how I think everything should connect, and I’ll include some photos of the pots I’m using.

 

Before I start soldering, I’d really appreciate any feedback or corrections, especially around:

• Whether my series/parallel switch wiring looks correct given both pickups only have two wires

• How best to ground the blend pot and push-pull pot to avoid hum

• Any other improvements or common pitfalls I should watch out for

 

Thanks in advance for taking the time to look! I know a few of you have done similar PJ rewires, and I’d love to learn from your experience. 🙏