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Assembling a 'tractor' jazz bass clone/tribute.

IMAGE 2025-10-05 09:05:55.jpg
IMAGE 2025-10-05 09:06:45.jpg
 
I bought a Guild bisonic neck pickup from the USA. I ordered a jazz bass clone that has a ash body and I ordered a maple block neck.

For people who don't know what a 'tractor bass' is. View attachment 7045658View attachment 7045659View attachment 7045660


Berry Duane Allman was a bassplayer in the Allman brothers band. He put a guild bisonic pickup in the front jazz pickup place. It means it has some extra sub bass and the two single coils get somewhat more high end and aggressive. I hope to modify the body and finish the body and neck in nitro. Still waiting for the neck. And I might need some new pots and I am in the process of buying a Fender set of single coil pickups.
To start off I want a volume for the bisonic, volume for jazz pickup 1 and 2. So that are three knobs. Then One knob for tone. Jazz pickup 1 and 2 will go on a stacked potentio meter. And I want a switch so I can route the bisonic to a seperate mono output or to the combined mono output. That way you can either go stereo or go to a 18 or 15 inch cabinet for extra low.

The paint of the headstock was not dry yet. It received a second coat of yellowed clear. After and hour I took it into the shed to do some sanding on the back. I think there is some trash in it. I have to wipe off once cured. Not sure if it needs a third clear coat.
 
Today I bought a vice. My local shop doesn't have plastic grips for the vice. I am in a situation I have to buy everything again in my life. Once I had a lifetime long collection of tools. No more. The big single coil... has more top end than a mud bucker. But it real strength is the booty. The low end. So That's what we want to make a variable.

I allso bought a chisel. To clean up the cavity. The dual jack plate now fits with the two jack chassis.

To make the top end of the jazz bass pickups shine and help it give it low end there is the bisonic pickup. So The end result would be a switch that can take out the bisonic and lead it to a seperate output. And there will be two Q filters with a different Q frequency.

Testscenaria 1.
Volume bisonic
Stacked volume jazz pickup 1 and jazz pickup 2.
Master tone
Jack output

Then add a switch and lead the jack outputs to the two mono jacks on the bottom of the bass. I then can take out (or leave it) the jack chassis from the controll plate and switch it out with a potmeter with Q filter. The master tone capacitor then can be replaced by the guitar q filter.
 
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I ordered a leather strap here with some text. It will arrive between 28 november and 16 december. We'll see.

As you have seen. Here and there are some chips. Not sure if I will (once assembly is finished) take it apart once it plays. So the colour is fresh... I think I will.