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Just rewired my bass-guitar, changed new pots, etc.
From 4 pots, the guitar had actually 2 pots left and only one of them working (neck pickup volume), so I couldn't find out how they were rewired before
I rewired it using a Les Paul schematic which i found here: http://guitarelectronics.zoovy.com/product/WDUHH3T2202 but without the pickup selector switch.
I used 22nF polyester multilayer capacitors which data sheet can be found at the download section of http://www.conis-bg.com/ ,it´s the data sheet for plastic film capacitors,the capacitor model was MPT111 and a 100V version was the one they gave me at the shop.
The independent volumes work great but the tone pots have no effect, i´ll post a picture from the wirings if necessary.
If anybody could help me to in what to do to make the tones work, it would be great, thanks.
Just rewired my bass-guitar, changed new pots, etc.
From 4 pots, the guitar had actually 2 pots left and only one of them working (neck pickup volume), so I couldn't find out how they were rewired before
I rewired it using a Les Paul schematic which i found here: http://guitarelectronics.zoovy.com/product/WDUHH3T2202 but without the pickup selector switch.
I used 22nF polyester multilayer capacitors which data sheet can be found at the download section of http://www.conis-bg.com/ ,it´s the data sheet for plastic film capacitors,the capacitor model was MPT111 and a 100V version was the one they gave me at the shop.
The independent volumes work great but the tone pots have no effect, i´ll post a picture from the wirings if necessary.
If anybody could help me to in what to do to make the tones work, it would be great, thanks.
Hi,
Its most probable the capacitors are not wired in correctly.
A wiring diagram would bew a great help.
🙂 /sreten.
Its most probable the capacitors are not wired in correctly.
A wiring diagram would bew a great help.
🙂 /sreten.
there's a link for the wiring diagram in my previous post🙂 i'll make picture later from the wirings and post it if it helps.
Hmmm,
the wiring as shown should work, ie the tones should work.
http://www.seymourduncan.com/support/schematics/jazz_bass.html
Shows a schematic more suited to not having a pickup selector,
the two tones controls won't work independently unless both
pickups volumes are turned down somewhat, and as at least
one is set fairly loud only one tone control is needed.
🙂 /sreten.
the wiring as shown should work, ie the tones should work.
http://www.seymourduncan.com/support/schematics/jazz_bass.html
Shows a schematic more suited to not having a pickup selector,
the two tones controls won't work independently unless both
pickups volumes are turned down somewhat, and as at least
one is set fairly loud only one tone control is needed.
🙂 /sreten.
Can the problem be in the fact that i'm using 10k linear pots?
It was originally with 10k pots, thats why I replaced them with that ones, but is this too low for a bass guitar?
Also, is it possible that the tine doesn't work because the pot is linear?
It was originally with 10k pots, thats why I replaced them with that ones, but is this too low for a bass guitar?
Also, is it possible that the tine doesn't work because the pot is linear?
I measured the old pots yesterday as the markings were quite unclear. It gave me abou 120K so that must be like a 100K pot. I guess thats what i'll try next. I tried with some 500K linears that I has laying around but they were way too high and it was impossible to make them even to work as independent volumes which I still did with the 10K linears.
Actually both are correct diagrams, and apart from the fact that the Seymour Duncan has a combined tone control, are exactly the same. I think you need the tone cap to be 220 nF not 22 nF. That should work.
If your volume controls work you probably don't need to change them. 250K is specific value for Seymour Duncan pickups, better to keep the pots you have or replace them with ones of the same value.
I think tone would work better with a bigger pot, with 10K you're almost at 90% of the travel of a 100K pot.
the reason 500K would not work is it's too high an impedance for the pickups to be useful. In that sense guitars work well into higher loads (I would experiment with a few pot values and pickup heights to find the tone you like at various positions) and 10K as a volume pot should also work. Maybe you just need a 220 nF + 100 K pot to get a tone control range that suits you.
If your volume controls work you probably don't need to change them. 250K is specific value for Seymour Duncan pickups, better to keep the pots you have or replace them with ones of the same value.
I think tone would work better with a bigger pot, with 10K you're almost at 90% of the travel of a 100K pot.
the reason 500K would not work is it's too high an impedance for the pickups to be useful. In that sense guitars work well into higher loads (I would experiment with a few pot values and pickup heights to find the tone you like at various positions) and 10K as a volume pot should also work. Maybe you just need a 220 nF + 100 K pot to get a tone control range that suits you.
Nope, I have now a log100K pot for the tone and have tried with 22nF and 220nF caps, but no effect at all. The schematic is the one for fender jazz bass, as in the seamour duncan link. I am starting to wonder how necessary the Tone pot will be on my bass as i will probably make an Alber Kreutzer pre-amp with the EQ for it. I am planning on adding a pick-up selector though.
No, with 100K pots, the volumes are however working perfectly.
No, with 100K pots, the volumes are however working perfectly.
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