Multimeter JB readings when installed question

[Edward203]

Hi,
I finally rewired my guitar for passives (JB / 59). I opted for the 3 way switch with the push pull on the tone knob.

I checked the JB out of the box and it read 17.2, after I installed it reads 16.5. Just wondering if I should be concerned about it and if it is because I have the push pull option. I checked several times and that is the average since the readings seem to vary over different periods of time. Thank you!

 

[Jacew]

Re: Multimeter JB readings when installed question

When you measure pickup installed you get volume pot in parallel with it:

500 * 17,2 / (500 + 17,2) = 16,63 kohm

So readings are correct.

 

[Edward203]

Re: Multimeter JB readings when installed question

Oh! Thank you!

 

[Clint 55]

Re: Multimeter JB readings when installed question

Temperature and I think the meter itself being finicky also causes readings to vary.

 

[Edward203]

Re: Multimeter JB readings when installed question

If I switch to the regular wiring with no split coils will I get a different tone from the humbuckers? Will the reading be consistent installed or not installed?

 

[beaubrummels]

Re: Multimeter JB readings when installed question

If I switch to the regular wiring with no split coils will I get a different tone from the humbuckers?

When humbuckers are in full humbucker mode, the split coil switch is not doing anything, so the tone should be the same.

Will the reading be consistent installed or not installed?

No, because when installed, the volume pot, tone pot, all play a partial role in affecting the resistance measured at the jack.

 

[Edward203]

Re: Multimeter JB readings when installed question

Thanks, so the tone is the same in the humbucker mode regardless if the wiring had the split coil or not? At least for the diagram I used.

I'm confused about this, I guess this doesn't apply to my situation since there is a three blade switch and a push pull https://www.seymourduncan.com/faqs/what-are-series-and-parallel-wiring

https://www.seymourduncan.com/faqs/...es-between-coil-splitting-and-parallel-wiring

 

[beaubrummels]

Re: Multimeter JB readings when installed question

In the wiring diagram you posted, there is no shift from series to parallel, either of the coils on individual pickups, nor of the pickups relative to each other.