Description
Skip the solder fumes and get straight to playing. This Emerson prewired kit hands you a complete, ready-to-drop-in wiring harness built to J-Bass spec, so your next pickup swap or electronics refresh takes minutes instead of an afternoon hunched over a breadboard.
At the core are three CTS 250K solid-shaft potentiometers paired with a Switchcraft 1/4″ mono output jack — the same combo that’s lived inside countless Jazz Basses for decades. Emerson pairs them with their own 0.047uf paper-in-oil capacitor, a tone-cap choice favored for smoothing off harshness without smothering low-end growl, plus a volume mod for tighter control over your signal.
Every connection is hand-soldered using 22 AWG vintage-style push-back wire, giving the kit an old-school look under the hood and keeping things easy to trace or modify later. The jack connections get heat-shrink insulation over the solder joints, which cuts down on shorts and keeps the harness reliable for the long haul.
One thing to note before you order: if your bass is an import with metric-sized pot holes, the US-spec pots here may be a touch too snug. A quick reaming of the pickguard holes (and US-spec knobs) will get everything fitting properly.
- (3) CTS 250K solid shaft potentiometers, .250″ shaft
- (1) Switchcraft 1/4″ mono input jack
- (1) Emerson Custom 0.047uf paper-in-oil capacitor
- (1) Volume mod
- Wiring diagram included





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