So I opened my 2006 Hwy1 Jazz Bass and I found out that the 250k tone pot has two caps, one standard .02uF on the 3rd lug to ground and a second one between lugs 1 and 2 wich is 100nF. Has anyone know how this works or how's changing the tone? Thanks!!
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Help with this 2 capacitor tone pot
- Thread starter fede_carbonero
- Start date
Does the tone control work normally? Seems like the in-line (100 nF) cap would really reduce the tone control's effectiveness.
My vote: remove the 'extra' cap.
This looks like a 'treble bypass cap' and they're sometimes installed on volume controls to help preserve some treble when volume controls are turned down. Why someone put it on a tone control, I have no idea unless they wanted a very subtle tone control.
My vote: remove the 'extra' cap.
This looks like a 'treble bypass cap' and they're sometimes installed on volume controls to help preserve some treble when volume controls are turned down. Why someone put it on a tone control, I have no idea unless they wanted a very subtle tone control.
I believe your bass has the GreaseBucket Tone Circuit. It is supposed to cut treble without adding bass when you roll off the tone pot. Some people like this feature and some do not. I just picked up a 2012 American Special NOS that has this circuit. I'm still not sure if I will leave it as is or have it rewired like an original PBass.
Thanks, I haven't played it yet because I bought this bass for really cheap but the neck was so messed up, also waiting for new strings. I guess I can try it later and see if the extra cap makes the difference or not
For it to be greasebucket, there will also be a resistor between the tone pot and ground...
Thats true.. I read that the greasebucket was introduced for the Hwy1 strats, my bass is a Hw1 so it would make sense (?)
Thats true.. I read that the greasebucket was introduced for the Hwy1 strats, my bass is a Hw1 so it would make sense (?)
The idea is to eliminate the resonance associated with a standard tone control when fully backed off. I actually quite like the 'politeness' of the greasebucket, so I installed a switchable one in my PJ. Here's the complete diagram...
