P-90 neck, regular Tele bridge, 250K or 500K pots? wiring diagram?

Discussion in 'Tele-Technical' started by old wrench, Apr 8, 2020.

  1. old wrench

    old wrench Tele-Afflicted

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    I'm hoping someone can point me in the right direction :).

    I'll be wiring up my Brotherhood Build soon, and I'm not sure how to do it.



    I'm using a Fralin P-90 at the neck, for which Fralin recommends 500K pots.

    I'm using a Cavalier Fat Lion at the bridge, which I think will work best with 250K pots. It's got a higher wind count than the vintage pickups I usually use, and I want to preserve the highs and bite as much as I can.

    I'm using a 4-way switch and the traditional one volume and one tone controls.

    I've got both 250K and 500K pots on hand.


    Can someone make some suggestions or point me towards a wiring diagram that will work with this mix?


    .
     
  2. eallen

    eallen Tele-Afflicted Silver Supporter

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    I always use 250k when doing a combo something other than single in the neck with good reults.

    In my wacked out non-scientific theory, If the 250K bleeds off unwanted highs, Then they are highs I am ok with not having anyway.

    Eric
     
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  3. kbold

    kbold Tele-Afflicted Silver Supporter

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    500K pot IMO. Matches the Fralin, and will give more highs and bite to the bridge than a 250K.
     
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  4. bo

    bo Poster Extraordinaire

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    What kbold said. You can always reel in the shrill with a good tone control.
     
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  5. E5RSY

    E5RSY Doctor of Teleocity

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    Last edited: Apr 8, 2020
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  6. beyer160

    beyer160 Friend of Leo's

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    Use 500k pots, but with a 270k resistor from the bridge hot lead to ground to make the bridge pickup "see" the same load as using 250k. Fender did this in the Fat Telecaster (see #17 on the diagram):

    https://p4.zdassets.com/hc/theme_assets/549136/200076499/010-8000_02B_SISD.pdf

    Screen Shot 2020-04-08 at 5.39.51 PM.png

    With 500k pots alone the bridge pickup winds up really screechy, and you can't EQ the neck and bridge separately.
     
    Last edited: Apr 8, 2020
  7. mjstamos

    mjstamos Tele-Meister

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    I did this with Frallin under wound P90 and Fender 62 AVRI bridge pup, used Obsidian wire 3 way solder less with 250k pots. Sounds Killer![​IMG]
     
    Last edited: Apr 8, 2020
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  8. old wrench

    old wrench Tele-Afflicted

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    Thanks very much for the helpful suggestions everybody :).




    This is really what I was looking for :), thanks @beyer160 !

    I remembered seeing something like this in the past, but I couldn't recall the details about how the added resistor was wired in.

    I'm so used to the controls on an LP where I can dial in my tone for each pickup. But, I do like the sound of a good Tele bridge pickup and the way a nice light Tele feels.


    .
     
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  9. bgmacaw

    bgmacaw Friend of Leo's

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    I went with 250k's on this significantly modified SX Tele copy. Another option I've been using a lot in more recent builds where I have mixed pickups is a 500k no-load with a .047mfd orange drop.

    modded_SX_STL-50.jpg
     
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  10. schmee

    schmee Doctor of Teleocity Silver Supporter

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    I prefer 250k with P90s
     
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  11. Ess Eff

    Ess Eff Tele-Holic

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    Be aware, the problems arise on the in between positions. Getting those to sound good is the challenge.... and with a 4way switch you have more in betweens.
    .
     
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  12. moosie

    moosie Doctor of Teleocity Ad Free Member

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    Beyer, you need a 500k resistor in parallel with a 500k pot, to emulate 250k. 500 and 270 = 170k.

    @old wrench, there are two ways, depending what you want for the middle position.

    Here are two diagrams, both with a humbucker, but it's the same wiring in this case for a P90. (No humbucker splits, or parallel here).

    Screen Shot 2020-04-08 at 11.41.09 PM.png Screen Shot 2020-04-08 at 11.41.01 PM.png
     
  13. moosie

    moosie Doctor of Teleocity Ad Free Member

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    Here's an example for a 4-way:


    Screen Shot 2020-04-09 at 01.08.16 AM.png
     
  14. stephent2

    stephent2 Poster Extraordinaire

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    Hi, Haven't logged in for awhile, but apparently I'm timely. The p90 i use in the t90 model is fairly low output, 6.25k and it's mated w/ a 10k bridge pickup. Budz pickups always and we've massaged this pickup pair since 2007.

    E5RSY is correct, this model has always used a 280k volume pot from RS Guitarworks and a 250k tone pot,.. the 280k works perfect w/ my Budz custom pickup combination.. Never too brittle at full blast and a usable, predictable sweep. For some unfathomable reason RS Guitarworks now only offers this CTS superpot in splitshaft and they got a little defensive when I asked why. I've never been a fan of the brass sleeve to convert a split to solid. But as far as I know they are the only game in town for that pot, which I've always been happy with, has a good solid feel and good taper.


     
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  15. tfarny

    tfarny Friend of Leo's

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    I would just use a 500k since, first of all, P90s can be muddy and second of all you say you want to preserve highs. Since you have both kinds you can try one for a while and then swap it out for the other one if you like. Just use your ears there is no right or wrong answer.
    PS you might not find it makes all that big a difference once the drums and bass kick in.
     
  16. Ess Eff

    Ess Eff Tele-Holic

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    You don't seem to under stand the issues involved. It has to do with the balance of tone between the two different pickup types.

    Read here...
    https://www.fralinpickups.com/2017/10/23/mix-single-coils-humbuckers/
    .
     
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  17. trev333

    trev333 Telefied Ad Free Member

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    I'd try a 250K V pot with a TBX tone pot..... the bottom half of the sweep is like a normal tone sweep...

    the top half takes the mud out of any neck pickup..... :)
     
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  18. tfarny

    tfarny Friend of Leo's

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  19. Rjelecaster

    Rjelecaster Tele-Meister

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    I have an alinico 7.8 KOHM P90 in the neck of a tele that I like much better after I changed to a 500 kOhm volume pot. Now it's almost got a strat neck like clarity on the high strings with a bit more ooomph on the low strings.

    @moosie , your second schematic would allow one to have the equivalent of a 250 KOhm volume pot for the bridge pickup while maintaining 500 k for the M+N and N? That should negate the ultra dark tone mentioned on the fralin site linked by @Ess Eff , correct?
     
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  20. Rjelecaster

    Rjelecaster Tele-Meister

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    Found some resistors, will try this out
     
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