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Post by andeeeroooo on Feb 18, 2021 1:01:00 GMT -5
Is there a forum called Bass Nutz somewhere that I should be looking at? Lol Seriously, have some questions about wiring and pot sizes....
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Post by andeeeroooo on Feb 18, 2021 1:05:40 GMT -5
What are typical volume pot sizes for a bass, specifically one with a J Bass 2x P-up configuration? I think I saw 1500 on it, would 1500k Ohms be correct for a bass guitar? Thanks
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Post by newey on Feb 18, 2021 6:54:14 GMT -5
andeeerooo- Hello and Welcome to G-Nutz2!We tolerate bass players around here just fine. Some of us even are one . . .  Pot values for basses are no different than guitar pots. I didn't check Fender's website (they have OEM wiring diagrams, BTW) but I'm pretty sure a stock J-Bass comes with 250KΩ pots for all 3 controls. The pot values are largely the same because, electrically, bass pickups are pretty much the same as guitar pickups. (I have a P-Bass to which I added a Strat pickup in the neck position, works just fine). Pot values are also a matter of personal preference to a large extent, at least within a range of values (roughly, between 100K and 1M Ohms). With the pot turned all the way open, a 1MΩ pot will sound very bright, lower values from there will "darken" the tone (some would say "muddy it up"). 1500K would be 1.5MΩ, that's higher than I've ever seen on any guitar or bass, not to say it hasn't been done. It would be extremely bright, the word "ice pick" comes to mind, at least for a guitar. As with most things in life, there is a trade-off here. As you increase the pot's value, it reduces the range of variation you have by turning the knob. If you were to use, say, a 3MΩ pot, in addition to being very bright, it would also have almost no range of variation as you turned the knob down- at some point it would be like an on/off switch, all or nothing. A lower pot value, OTOH, allows more control as you turn the knob, it's more incremental. A 1.5M pot wouldn't be like an on/off switch, but it would have all of the action in a very small range as you turn the knob, making it hard to "fine-tuned" one's adjustment. Also, note that everything I said above applies only to passive pickups. Active pickups are another topic entirely. Just as with guitars, basses with active electronics will typically use pots with much lower resistance values, on the order of 25K-50KΩ. |
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Post by frets on Feb 18, 2021 16:58:08 GMT -5
Hi Andeeee,
I wire many basses and would be happy to help you with a P Bass wiring. As Newey pointed out, they do use 250k tone pots.
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Post by andeeeroooo on Feb 21, 2021 14:45:34 GMT -5
Hey thanks for your responses, I appreciate it.
I actually went ahead and replaced it with a 500k pot for volume, seems to work out fine. Thanks for the information about what the pot value relates to.
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Post by andeeeroooo on Feb 21, 2021 14:56:02 GMT -5
By the way , I’m also looking to re-wire a single humbucker guitar, (Epiphone LP junior) I thought it would be cool to incorporate as many tone switching features as possible ( coil split, phase or series-parallel, tone cap switching like mini-varitone). I have been looking for a diagram for something like this, but haven’t really seen anything. Any suggestions? My thought was to use 2 push-pull pots to replace volume and tone knobs, and add a mini toggle switch in between them as well. Any help would be appreciated.
Thanks!
I will repost this as new thread in the right spot, too.
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