Check the listing for details. Execration . Fender Jazz Bass Push Pull Series Parallel with Blend Knob. Color: Silver, Condition: New. Listed at 90.00 USD. Black, Gold or Chrome plate. Knob Options: Vintage Style Black Modern Style Black, Cream, or White. Master Volume, Tone and blender pot with series activation. Volume boost or tone change at the push of a knob! Arranged volume, blend, tone, and jack. Your volume knob doubles as a series selector when you PULL it up. Blend knob allows you to blend as much bridge and neck you want in parallel mode. Series mode should only be used with the blend pot in its center position. the center position is easy to find due to the blend pot having a center detent. This harness gives you a new tonal spectrum of two single coils in series on your Jazz Bass sounding like one giant pickup. Summary: Normal parallel circuit with blend knob. Pull volume knob for series mode. (One giant pickup sound) Volume pot is an audio taper push pull from CTS Treble bleed, Kinman style. .001 uF cap with a 150k resistor both dipped in protective liquid electrical tape. CTS blend pot 4 pigtails to solder you pickups to. Color coded for easy installation. See photos CTS tone pot, Linear taper 250k Tone cap .047uF dipped in protective liquid electrical tape. Switchcraft 1/4” Jack