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FDP Forum / Fender Guitars: Telecasters / Is there any reason this Tele wiring won't work?

LeftyMeister
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Buckeye Country, USA

Tone is in the lingers
Mar 2nd, 2019 06:06 PM   Edit   Profile  

For my latest FrankenTele with 3 pickups, I put a P90 in the neck and it's a little dark for my tastes with 250K pots. I like the tones of the bridge and middle so I don't want to go to an all-around higher value. I need to go 500K for the neck but I don't want to install another pot, so I had an idea to just use a 500K resistor in place of a tone pot for the neck. I also want to maintain the bridge toggle for 7 pickup combinations.

Am I thinking clearly on this or, with a 250K volume, will it even make any difference?

Tele 5-Way with 2 Tones & Toggle

Peegoo
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Just beyond Mars

there's a world of fools
Mar 2nd, 2019 09:22 PM   Edit   Profile  

"just use a 500K resistor in place of a tone pot"

If you mean you want to remove the pot and permanently install a 500K resistor, that won't work.

Pinetree
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Who wants Honey?

Mar 3rd, 2019 01:23 AM   Edit   Profile  

Changing the pot is 5 minute job.



Plus the hour and a half drive over to my house.




LeftyMeister
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Buckeye Country, USA

Tone is in the lingers
Mar 3rd, 2019 05:32 AM   Edit   Profile  

"If you mean you want to remove the pot and permanently install a 500K resistor, that won't work."

I want to give the neck a separate 500K resistor while maintaining the existing pot for the bridge. I don't need tone control for the middle pup.

If it won't work, I'm curious as to why not. A pot is just a variable resistor with a wiper.

Piney, I'll be right there. :)

The problem is that I have no room for another pot on my control plate.

Leftee
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VA

Toxic Humility
Mar 3rd, 2019 06:25 AM   Edit   Profile  

If you could do without the tone pot, you could convert that control to a volume pot for the neck pickup.

LeftyMeister
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Buckeye Country, USA

Tone is in the lingers
Mar 3rd, 2019 06:54 AM   Edit   Profile  

I really need the tone control to roll it off for the bridge pickup. I like to dial it down with dirt but need it brighter for chicken-picken.

Peegoo
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Just beyond Mars

there's a world of fools
Mar 3rd, 2019 07:29 AM   Edit   Profile  

How it would sound depends on the pickup and on the amp.

A pot is actually a voltage divider and does not really behave like a resistor because it's not a fixed resistance.

The best thing to do would be to try it and see if it gets you the tone you're after.

Te 52

Laws of Physics

strictly enforced
Mar 4th, 2019 03:23 PM   Edit   Profile  

There are some problems with your drawing.

First, I assume you are using a Strat-style 5-way switch, but the drawing doesn't reflect that. A Strat switch only has 4 lugs per pole, you show 6.

Second, If the purpose of your "Bridge" switch is to add the bridge pickup to get N+B and N+M+B, it is in the wrong place.

Third, you show the negative leads of the pickups going through the tone cap to ground, they should be grounded directly.

As shown, the fixed "Neck Tone" control will affect both the N and N+M positions, the M position will have no tone control. Is that what you wanted? If you want more options for which tone controls are active in which positions, you could go to a 5-way 4-pole Superswitch.

Nothing wrong with using a discrete resistor for a fixed-value tone control, tone pots are wired as variable resistors, not voltage dividers.

Like you, I am not sure that the combination of a 250K volume pot and a 500K neck tone fixed resistor will brighten up the P90 enough to satisfy you.

If you think that a 500K might be too much or too little resistance, you might consider using a miniature trim pot wired as a variable resistor for your "Neck Tone." Once you dialed in the value you wanted you could tape off the leads and leave it in the control cavity.

Link is to a revised version of your drawing.

custom wiring 20190304

(This message was last edited by Te 52 at 06:33 PM, Mar 4th, 2019)

LeftyMeister
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Buckeye Country, USA

Tone is in the lingers
Mar 4th, 2019 03:41 PM   Edit   Profile  

"A pot is actually a voltage divider and does not really behave like a resistor because it's not a fixed resistance."

Right! My idea is that I'd never need to reduce the tone of the neck pickup, therefore, would never need to divide the voltage. IOW, the voltage would always be fixed.


Leftee
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VA

Toxic Humility
Mar 4th, 2019 04:15 PM   Edit   Profile  

The volume pot is the voltage divider. Not so the tone pot.

The volume pot value will have the biggest impact on the tone, with that pot turned all the way up. Less signal is shunted to ground through a 500k pot as opposed to a 250k. It yields more output and generally brighter tone.

LeftyMeister
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Buckeye Country, USA

Tone is in the lingers
Mar 4th, 2019 04:28 PM   Edit   Profile  

Correct, Eric! I suspected the volume pot played a big part...thus my original question if it would make a difference.

Regarding the wiring, I don't see a reason it won't work. The only downside would be when the bridge and neck are on at the same time, which would put the two pots in parallel and darken the tone.

Mick Reid
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Australia

American-made in Oz!!
Mar 4th, 2019 04:49 PM   Edit   Profile  

If it's just the tone of the neck pickup that's bothering you and the rest of the pickups & switching is to your satisfaction, you could try a high-pass filter in series with the lead to the switch (see my link).

I've used this for "muddy" neck humbuckers.

You can play around with the cap value, but the one shown is a good start and worked well for me.

de-mud mod

LeftyMeister
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Buckeye Country, USA

Tone is in the lingers
Mar 4th, 2019 05:10 PM   Edit   Profile  

Thanks, Mike. That looks like an easy solution.

Leftee
Contributing Member
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VA

Toxic Humility
Mar 4th, 2019 05:21 PM   Edit   Profile  

That’s cool! I’d do that!

LeftyMeister
Contributing Member
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Buckeye Country, USA

Tone is in the lingers
Mar 9th, 2019 12:21 PM   Edit   Profile  

Mick, I installed your fix and it indeed de-mudded the P90. Thanks! It's much sweeter now and has that woman tone (whatever that is).

I also replaced the flimsy (supposedly genuine Fender) control plate with a thicker one. I'm happy now and shouldn't need to open 'er back up anytime soon.

Leftee
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VA

Toxic Humility
Mar 9th, 2019 12:34 PM   Edit   Profile  

Nice outcome!

LeftyMeister
Contributing Member
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Buckeye Country, USA

Tone is in the lingers
Mar 9th, 2019 02:23 PM   Edit   Profile  

Te 52, I apologize that somehow I missed your post. Thanks for the thoughtful response. Comments...

I showed the 2 & 4 positions to represent the 'tween sounds. That's why I show no connection points to them but instead just the Y.

You're correct the bridge switch is shown in the wrong place. The way I had it wired, the switch would only work when the 5-way was in the bridge position. lol!

Good point on the tone cap and grounds. That was an oversight on my part.

I intended not to have any tone control for the middle pup since I always play it at max.

I thought about a trim pot but, with the mini switch, my control cavity is already packed.





FDP Forum / Fender Guitars: Telecasters / Is there any reason this Tele wiring won't work?




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