Jazz Bass Pickup Broken?

EagleMoon · #1 01-03-2008, 01:48 AM

I dropped an SX jazz pup on the floor the other day and it the magnet broke in half, almost exactly in the middle. Is it history or will it still work?

GlennW · #2 01-03-2008, 05:35 AM

They come that way, and are held together with a piece of tape. It should work fine as long as you don't flip one of the magnets when you put it back.

Edit: The bobbin is glued to the cover preventing disassembly, trying to take it apart can screw it up.

rutty24 · #3 01-03-2008, 05:40 AM

by dropping any magnet you will dramatically reduce the magnetic field that it produces. they do come that way yes but be very very careful. the output will have reduced significantly.

GlennW · #4 01-03-2008, 05:46 AM

People have smashed guitars, and the pickups still worked.

Frankjohnson · #5 01-03-2008, 05:48 AM

Quote:

Originally Posted by rutty24

by dropping any magnet you will dramatically reduce the magnetic field that it produces. they do come that way yes but be very very careful. the output will have reduced significantly.

what????????//

I don't thing so

nothing "falls out of it"

fullrangebass · #6 01-03-2008, 06:06 AM

If the magnet cracks it's not the same anymore

laboitenoire · #7 01-03-2008, 06:21 AM

Technically, if a magnet experiences a hard impact, it can de-magnetize. However, I'm pretty sure it takes more force than just dropping it a few feet (which isn't the same as hitting it with a hammer).

rutty24 · #8 01-03-2008, 06:23 AM

frankjohnsen..... i do not lie. the dropping of a magnet on the floor will reduce the magnetic field. unfortunately thats a fact. however eaglebass might get away with it. as its only repeted knocks that will remove magnetic field. its all about electrons and s**t all i remember from A level physics was that if you drop a magnetic the field strength is reduced. thank you laboitenoire you are right. you can never be too careful though. it should be fine

Phil Mailloux · #9 01-03-2008, 06:34 AM

Quote:

Originally Posted by rutty24

by dropping any magnet you will dramatically reduce the magnetic field that it produces. they do come that way yes but be very very careful. the output will have reduced significantly.

I somehow doubt this thing with the magnet losing it's charge after dropping it. Even if it did lose magnetic charges there's no way in hell the pickup would lose output because of it. Your output is determined by the amount of wire in the coil.

Frankjohnson · #10 01-03-2008, 07:34 AM

The SX Jazz pups have two magnets taped to the back. I opened mine up and inspected them.....reinstalled.....they were fine. I have had 3-4 set of pups in tehre now. the Kalamazoo pups are nice and have bar magnets.

These SX pups are still ok.

So.....what would happen if you put stronger magnets on the back of these things.?

EagleMoon · #11 01-03-2008, 12:02 PM

I just looked at the pickup again. I guess it was the rough edges of the glue that had held them together that made it look like it was broken. I didn't realize that they might come that way.

T-Bird · #12 01-03-2008, 02:25 PM

Hi.

To the OP. Just glue the magnets back exactly as they came off, chances are that You won't find any difference in the tone or the volume in one way or the other.

While the mechanical impact will reduce the magnetic strenght of metallic alloy magnets, the same isn't true with sintered varieties. The sintered bars just chip and/or break in two and all the chips and individual pieces have somewhat relative strenght to the size of the particle as the orientation stays the same (obviously).

If there's doubt just magnetize a nail with a bar magnet (or a speaker magnet) and perform a before- and after pounding test with iron shavings or a tube TV-set

.

Then break a sintered bar magnet (or an toroidal speaker magnet) in two and test the pieces as in the first experiment and find out. One can then pound the other half to a magnetic powder an it still distracts the e-rays on the idiot-tube.

And yes, the magnet strenght has quite a lot to do with the power or output of the pickup

.

The adjustable strenght magnet pick-up was around some time ago IIRC mid 80's, but as the combination is what counts, not the individual pieces, so that idea died quite quickly.

Just my 0.02€ as usual.
Sam

Frankjohnson · #13 01-04-2008, 08:00 AM

But it wasn't broken................it was a two piece magnet......