How do a pickup "dies"?

[JakeBluesRocker]

I have the opportunity of buy a vintage 86 Alnico 2 pro "Bridge" it says "APH1BJ" but the strange thing is that it reads 7.83 k ohms in place of what it supposedly should be.(8.50?)
I another thread some members of several forums have talked with me and all of they said the same
"IT IS A BRIDGE NOT A NECK PICKUP,IT SHOULDN'T READ THAT.
talked to some SDForum members and they all told me:
1. no backlogo, small tag without winder from late 70 up to 1981
2. no backlogo, small tag with winder initial from 1981 to 1983
3. big backlogo without MiA, small tag with winder from at least 1983 to 1987
4. small backlogo with MiA, small tag with winder from 1987 to 2002
5. small backlogo with MiA, large tag with SN and Model from 2002 to ?
6. small backlogo with MiA, large tag with date from ? to now

"How to identify a Bridge or neck vintage aph?",easy:
Bridge= APH1B
Neck=APH1N
An after that it MUST say who was the winder,in your case MJ."

My biggest concern is if it will die or if it is already damaged.

 

[captain tightpants]

I wouldn't put too much stock into what the DC resistance "should" be. Guitar pickup resistance figures can be all over the map for a number of different reasons. 7.83k should be well within normal tolerances.


edit: in fact, I just checked the Duncan website, the DC resistance figure for a normal (not the Slash model) APH1 bridge model is listed at 7.85k. The pickup you are looking at would essentially be dead on.

The Slash model is listed at 8.53k.

Scroll down to find the humbucker model listings.

http://www.seymourduncan.com/comparetones

 

[JakeBluesRocker]

I wouldn't put too much stock into what the DC resistance "should" be. Guitar pickup resistance figures can be all over the map for a number of different reasons. 7.83k should be well within normal tolerances.


edit: in fact, I just checked the Duncan website, the DC resistance figure for a normal (not the Slash model) APH1 bridge model is listed at 7.85k. The pickup you are looking at would essentially be dead on.

The Slash model is listed at 8.53k.

Scroll down to find the humbucker model listings.

Seymour Duncan

And should it sound "the same" as a 8.50,I know it is really subjective but should it be the same?

 

[captain tightpants]

And should it sound "the same" as a 8.50,I know it is really subjective but should it be the same?

Not sure what you are asking.

It should sound like a normal APH1 pickup. The 8.50 figure is for the Slash model, which a a new model.

7.83k is perfectly normal.

 

[JakeBluesRocker]

Not sure what you are asking.



7.83k is perfectly normal.

More output=more bite?Thats essentially why i am looking for a vintage alnico pro or sig

 

[captcoolaid]

Okay Seymour is famous for magnet manipulation so I would just get it and put it in the bridge.

A pup can lose some DC if the coil loosens or can lose output with a mag discharging over time. There are probably other factors but these are the most common.

 

[captain tightpants]

Ahh, I gotcha. I can't actually help you with that, I have no idea what the real world differences are between the two.

There isn't a huge amount of difference between 7.8 and 8.5, but yeah the Slash should be slightly hotter sounding. Could very well be a little darker sounding too as higher resistance often comes with a slight loss in highs, but that's just in general. As i said, I have no experience with the Slash model, and very little with the regular Aph1. And as Rayne said, Seymour is a master of magnet manipulation, he could easily compensate for a loss of highs.

Personally, all things considered I'd go for the older pickup (just cuz), but I don't really think you could go wrong either way.

 

[JakeBluesRocker]

What would I do without you guys?

 

[SKATTERBRANE]

Temperature greatly affects a DCR.

 

[Luckynumber3]

Temperature greatly affects a DCR.

So, could a pickup seem to have more output if you went from the snowy mountains to death valley?

 

[SKATTERBRANE]

So, could a pickup seem to have more output if you went from the snowy mountains to death valley?

I think I have explained here that DCR is not output many, many times. If you add resistance to a circuit you REDUCE output! In the snowy mountains the SAME pickup will have a lower DCR and thusly MORE output. In Death Valley, it will have a higher DCR and so, LESS output.

Output is determined mostly by how many winds in the coil and the strength of the magnet. DCR is determined by number of winds, the material used in the wire, (and how pure it is) and the thickness of the wire. Two pickups with the same magnet with the same amount of winds, using different guages of wire will have different DCRs and in that case the one with the thinner wire will have a higher DCR, but slightly less output.

I am going to promise myself to never engage in this subject again.

 

[LtKojak]

I am going to promise myself to never engage in this subject again.

C'mon, I know and you KNOW that's not humanly possible.

 

[SKATTERBRANE]

Maybe you are right, but I am going to give it a strong effort!