Bought Powertrons, Bridge pup is awful. Normal?

Henry

I Bleed Orange
Apr 9, 2014
18,708
Petaluma
The wiring matches stock wiring, it's just all new CTS pots with an upgraded switch.
I would use the TVJ wiring rather than stock if they are different and I believe they are. If the original wiring had the muting issue then you need a new schematic. That happens on my electromatic but not any of my 3 prolines. that may solve your bridge tone issue as well.
 

stevo

Friend of Fred
May 1, 2012
7,072
Atlanta
Definitely audio taper, it's all 920d sells I believe.

I'll have to look them up.

BTW - I get a bit of shelving myself on my 6128 and I have everything exactly to spec per the TVJ wiring diagram. Volume is pretty smooth on individual pickups, but when blended, I can definitely hear the one pickup kick in as I turn it up.

However, I did look on 920d and they say:

"Lastly, our pots utilize a 10% audio taper so that your volume or tone sweep can be slightly shorter. This allows for a faster sweep but still maintain plenty of control to fine tune your sound."

I'm not sure if that has anything to do with it but I also have a custom taper on my pots but not sure if it's steeper or not. I'm thinking about subbing in some Tocos pots on my 6128 to see if that changes the behavior.
 
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stevo

Friend of Fred
May 1, 2012
7,072
Atlanta
Unsolder the pickup from the harness and solder it right to a jack, then you'll know if its in the harness.

And by doing that, you will change the impedance of the circuit significantly - I would expect an audible difference even with a known good harness.
 

kbcarroll

Electromatic
Nov 4, 2010
52
Nashville, TN
1. Measured impedance with this harness, aligns perfectly with TV's spec (5k neck, 7.7k bridge).

2. Compared this harness to the TV jones "tone pot" harness (https://tvjones.com/tone-pot-harness/) and it's identical except for a treble bleed added to the master vol pot. Would not explain why the neck pickup has plenty of top end clarity but bridge does not, though

3. Pickups are quick-connect and I'd rather not butcher that to test a theory :(
 

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wildeman

I Bleed Orange
May 10, 2015
16,122
norcal
And by doing that, you will change the impedance of the circuit significantly - I would expect an audible difference even with a known good harness.
It will tell you if the pickup is something you can work with or not, if it sounds good pure then you can tweak your components to taste. It works for me.
Nevermind.....
 

dokterbart

Electromatic
Aug 9, 2021
39
Amsterdam
Wanna buy one in gold? Or the set? I'm learning the powertrons are just too dark and middy for me. Probably gonna just get some classics.
Just one thing: you told the neck PU was exactly what you wanted. Your bridge PU is not Powertron but Powertron Plus, especially made for ZZTop gitarist, supposed tot have more heavy sound. Just a normal powertron on the bridge could help you out. If you having too much mid tones with a normal powertron there, then you could move to classiic/classic plus.
 


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