Premium 58 Jazzmaster DIY Wiring Kit

ROTHSTEIN GUITARS PREMIUM 58 DIY JAZZMASTER UPGRADE KIT

This premium DIY kit features the exact same components that are used in our famous prewired kits. The only difference is that it will not be prewired. The kit includes the following components:

• CTS Pots: (2) CTS 1M split-shaft 24 mm audio taper (lead circuit), Alpha 1M and 50K linear taper mini pots (rhythm circuit).
• 033 uf SoZo NextGen Blue Molded Capacitor for the lead circuit. These are faithful reproduction of vintage Astron Blue Molded caps. They have great clarity and dynamics.
• .022 uf Mallory Yellow Mustard Capacitor for the rhythm circuit. These reproductions of Mullard Mustard caps are dripping with vintage warmth.
• Treble bleed mod- To prevent the loss of highs as you lower your volume. We use a 1000 pf Mallory 150 series cap in parallel with a 150k resistor.
• Switchcraftt right angle toggle switch with cream switch knob.
• Switchcraft slide switch.
• Switchcraft jack.
• Gavitt Vintage style "push-back" cloth wire in ALL 6 of the vintage correct colors (red, blue, green, yellow, black, and white).
• Bracket (for roller pots).
• Roller Knobs.
• Heat Shrink Tubing.
• Detailed installation instructions, including wiring diagram.

The kit is based on vintage 58 wiring, but includes a couple of subtle, yet important improvements based on our 25 years experience working with and wiring Jazzmasters. The improvements solve a couple of problems, but are still very much faithful to traditional Jazzmaster tone. Specifically, the 2 improvements are:

1. Lead Circuit Volume Pot with Smoother Taper. Vintage Jazzmaster wiring used a 1M linear taper pot for the main lead circuit's volume pot. Linear taper pots certainly have an important place in electronic circuits, but when used in guitar volume pot applications, they behave more like an on-off switch. If you have ever played a guitar with a linear taper volume pot, you will note that rolling the volume knob down past 8 results in a very rapid drop in volume. In the lead circuit, this is particularly problematic if you're the type of player who likes to used volume swells. The simple solution is to use audio taper pot instead, however not all audio taper pots are created equal. The pots sourced for the lead circuit in this kit have a smooth taper that works equally well for both volume and tone.
2. Treble Bleed Mod for Lead Circuit Volume Pot. A common problem you may have noticed when lowering your Jazzmaster's lead circuit volume pot is the loss of high end. The way to remedy this situation is to employ a treble bleed mod (aka volume kit). For more information, please check out our treble bleed mod article here.