Wiring guides. Pickup simulations. Tools.
For musicians who make things.
Started with a question about pickups. Ended with a circuit topology nobody’s documented for bass.

I Simulated 30 Jazz Bass Pickups So I Wouldn't Have to Buy Them All
Python pickup simulator ranks 30 Jazz Bass pickups by brightness. Seven with measured RLC data, twenty estimated. DC resistance is the wrong number. Inductance predicts tone.
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Five Pickups, One Sound: Which Jazz Bass Pickup Gets You There?
You already know what you want to sound like. Five hum-cancelling Jazz Bass pickups, mapped across three playing modes, with the charts to prove which one gets closest to your target.
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Jazz Bass Master Blend Wiring: Series/Parallel + Greasebucket + Buffer
Jazz Bass master blend wiring with series/parallel switching, Greasebucket tone, and onboard JFET buffer. Three knobs, nine sounds, cable-immune. Optimized for Fralin, Model J, and Aguilar. Every solder joint numbered.
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The Model J Filter Build: A Passive Q Circuit for Coil-Parallel Bass
A Jazz Bass harness that replaces the tone pot with a passive resonant filter. Two components shape the Q of a coil-parallel pickup to match a stock single-coil curve. Three coil modes, one knob, no active preamp.
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