Messed up with a pickup: can in be saved?

[dpaterson]

Re: Messed up with a pickup: can in be saved?

Not sure how hot a SMALL LIGHTER gets but here’s an interesting link:

https://www.magnetexpert.com/technical-advice-i685/temperature-effects-on-magnets-i683

P.S.

Looks like you got a real problem:

https://sciencing.com/temperatures-do-lighters-burn-8475271.html

P.P.S.

You might wanna take those blistering “hot” solos down a notch!!! LOL!!!

 

[Adieu]

Re: Messed up with a pickup: can in be saved?

Jimi Hendrix School of Pickup Voodoo

"DEGAUSS & ARISE...ARISE, I SAY!!!" ....now it all makes sense!

 

[dpaterson]

Re: Messed up with a pickup: can in be saved?

I just mentioned this on another thread (thought it could have been Malmsteen but clearly it was Jimi Hendrix).

Nice post!!! LOL!!!

 

[Adieu]

Re: Messed up with a pickup: can in be saved?

Malmsteen?? That pic's a classic

Quick cheatsheet for iconic 20th century pop culture images:

Summoning flames from guitar - Hendrix
Round glasses, hair - Lennon
Bottle blonde in white dress - Monroe
Beard, beret - Che Guevara
Goatee, very bald shortie - Lenin
Microstache, brown pseudouniform - Hitler
Curly beard, squared off cap - Fidel
Marked by the devil - Gorby


PS make an appointment with an optometrist, the world looks better in Full HD

 

[dpaterson]

Re: Messed up with a pickup: can in be saved?

Malmsteen?? That pic's a classic

No man. I meant I seemed to have recalled seeing Malmsteen doing that in a video that I saw. But your pic. clearly demonstrates I was mistaken. I do know the difference between Malmsteen and Hendrix!!! LOL!!!

Good list!!!

 

[Zado]

Re: Messed up with a pickup: can in be saved?

Well that’s alright then I guess!!! LOL!!!

On a serious note: am surprised that heat could degauss a magnet??? I have a thread somewhere around where I wanted to know if there was a correct way to store pickups i.e. not to store them close to each other and stuff like that. Was told that pickup magnets would stay magnetized for hundreds of years so nothing to worry about. Also on that thread are details of a SD pickup that’s been submerged in water for a few years and it still works just fine to date. But in just a few minutes and with a VERY SMALL cigarette lighter you have managed to defy physics and derail years of research!!! LOL!!! Am joking again but am keen to know if it was indeed the heat that caused this. Is it not possible that the heat melted the coating on the wire used for the windings (assuming that such wire is indeed coated) and a winding has now shorted out (as opposed to the magnet having lost its “juice”)???

On it was not even for a mi ute, I'd say 30 seconds at best! I put on the flame the bar magnet alone, and when I mounted it back it wasnt even warm, so definitely the flame did a thing.
Unless alnico is VERY weak and has almost no attraction by itself, that I do not know, but compared to, lets say, a fridge magnet, the difference was huge after the "treatment", the alnico bar could hardly move the needel of a compass.

On a side note I even tried ti regauss the thing with a small neo disk like said in the How to Degauss thread, but had no effect, apparently...

 

[dpaterson]

Re: Messed up with a pickup: can in be saved?

Good morning. And how are you this fine morning???

Here (taken directly from the link that I posted above for you) (dunno why I bother!!! LOL!!!):

How does temperature affect alnico magnets?

Alnico magnets are characterised by their high remanence but low coercivity, which means that they are second only to neodymium magnets in terms of magnetic strength, but are significantly more susceptible to demagnetisation by external magnetic fields and physical shock, although not by elevated temperature. In fact, of all permanent magnetic materials, alnico magnets have the greatest thermal stability only losing a fraction (0.02%) of their performance for every degree Celsius rise in temperature above ambient. Alnico magnets also have the highest maximum operating temperature of all the permanent magnet family, not suffering irreversible losses in performance until the temperature reaches 525 degrees C (alnico5).

Now ALSO according to a link I posted above for ya: a butane lighter can burn at in excess of 1 900 degrees Celsius. So there's your problem right there!!! LOL!!!

 

[Zado]

Re: Messed up with a pickup: can in be saved?

Not sure how hot a SMALL LIGHTER gets but here’s an interesting link:

https://www.magnetexpert.com/technical-advice-i685/temperature-effects-on-magnets-i683

P.S.

Looks like you got a real problem:

https://sciencing.com/temperatures-do-lighters-burn-8475271.html

P.P.S.

You might wanna take those blistering “hot” solos down a notch!!! LOL!!!

Oh ok now we have some scientific facts that prove Im an idiot:lmao: and Hendrix could really degauss like a mofo!:naughty:

That said I want a mention in the degauss topic now! Thats' for the sake of science! The Zado degaussing method! Have your Duncan invader sound like a single coil in an instant!

 

[Zado]

Re: Messed up with a pickup: can in be saved?

Good morning. And how are you this fine morning???

Here (taken directly from the link that I posted above for you) (dunno why I bother!!! LOL!!!):

How does temperature affect alnico magnets?

Alnico magnets are characterised by their high remanence but low coercivity, which means that they are second only to neodymium magnets in terms of magnetic strength, but are significantly more susceptible to demagnetisation by external magnetic fields and physical shock, although not by elevated temperature. In fact, of all permanent magnetic materials, alnico magnets have the greatest thermal stability only losing a fraction (0.02%) of their performance for every degree Celsius rise in temperature above ambient. Alnico magnets also have the highest maximum operating temperature of all the permanent magnet family, not suffering irreversible losses in performance until the temperature reaches 525 degrees C (alnico5).

Yeah I read that after posting, it is definitely interesting!

 

[dpaterson]

Re: Messed up with a pickup: can in be saved?

Oh ok now we have some scientific facts that prove Im an idiot:lmao: and Hendrix could really degauss like a mofo!:naughty:

That said I want a mention in the degauss topic now! Thats' for the sake of science! The Zado degaussing method! Have your Duncan invader sound like a single coil in an instant!

Way too funny!!! LOL!!!

Hey. We live and learn!!! LOL!!!

I wonder what would happen if you FROZE that magnet now??? Not kidding i.e. also learned from the above that the cooler a magnet gets the more magnetic it becomes. But alright in your case: it's already stuffed by the look of things. But who knows. Maybe worth a shot???

 

[hamerfan]

Re: Messed up with a pickup: can in be saved?

Zado, get in touch with LtKojak in this forum and lives in Italy, too. He is an expert with guitar mags. He can recharge your or sent you a new one.

 

[Adieu]

Re: Messed up with a pickup: can in be saved?

Good morning. And how are you this fine morning???

Here (taken directly from the link that I posted above for you) (dunno why I bother!!! LOL!!!):

How does temperature affect alnico magnets?

Alnico magnets are characterised by their high remanence but low coercivity, which means that they are second only to neodymium magnets in terms of magnetic strength, but are significantly more susceptible to demagnetisation by external magnetic fields and physical shock, although not by elevated temperature. In fact, of all permanent magnetic materials, alnico magnets have the greatest thermal stability only losing a fraction (0.02%) of their performance for every degree Celsius rise in temperature above ambient. Alnico magnets also have the highest maximum operating temperature of all the permanent magnet family, not suffering irreversible losses in performance until the temperature reaches 525 degrees C (alnico5).

Now ALSO according to a link I posted above for ya: a butane lighter can burn at in excess of 1 900 degrees Celsius. So there's your problem right there!!! LOL!!!

Doubtful, even if it was one of those "windproof/jet/"turbo"" thingies, applied perfectly and to each area... realistically, it'd be shocking to see more than a third of that with a lighter, even half that is serious blowtorch territory



https://bullfinch-gas.co.uk/safety-and-technical/10-safety-technical/26-flame-temperatures

 

[dpaterson]

Re: Messed up with a pickup: can in be saved?

Doubtful, even if it was one of those "windproof/jet/"turbo"" thingies, applied perfectly and to each area... realistically, it'd be shocking to see more than a third of that with a lighter, even half that is serious blowtorch territory



https://bullfinch-gas.co.uk/safety-and-technical/10-safety-technical/26-flame-temperatures

You're probably right. Admittedly I posted the first link I found when I did a Google search for this. But I've subsequently found other links where it's stated that the temperature could be about one third of the 1 900 degrees Celsius as put forward on the link I originally posted. Still: even at these reduced temperatures obviously some damage has been done (but who knows i.e. maybe this thing was packing up anyway and it's just "Murphy and his law" or pure coincidence).

P.S.

Whatever the case: I personally and most certainly will not be opening up my Invader(s) for any reason that's for sure!!! LOL!!!

 

[Zado]

Re: Messed up with a pickup: can in be saved?

Way too funny!!! LOL!!!

Hey. We live and learn!!! LOL!!!

I wonder what would happen if you FROZE that magnet now??? Not kidding i.e. also learned from the above that the cooler a magnet gets the more magnetic it becomes. But alright in your case: it's already stuffed by the look of things. But who knows. Maybe worth a shot???

My kitten thought it was funny to play with that shiny thing,so magnet fell on the ground and broke...yep, no experiment this time : private:

 

[Zado]

Re: Messed up with a pickup: can in be saved?

Zado, get in touch with LtKojak in this forum and lives in Italy, too. He is an expert with guitar mags. He can recharge your or sent you a new one.

Thanks,I should have some spare mags somewhere, but if needed will do!:scratchch


Anyway, if the problem is indeed the magnet weakened by the lighter or something else, it's something that can discovered only with another mag, so I'll give a shot as soon as I can and let know

 

[dpaterson]

Re: Messed up with a pickup: can in be saved?

My kitten thought it was funny to play with that shiny thing,so magnet fell on the ground and broke...yep, no experiment this time : private:

Well that's the end of that then too I guess!!! LOL!!!

Thanks to your starting this thread I've ALSO learned that DROPPING magnets can have the same effect just by the way. Actually really never figured that these things could be so fragile (at least under very specific circumstances or conditions so it would seem).

 

[Zado]

Re: Messed up with a pickup: can in be saved?

Well that's the end of that then too I guess!!! LOL!!!

Thanks to your starting this thread I've ALSO learned that DROPPING magnets can have the same effect just by the way. Actually really never figured that these things could be so fragile (at least under very specific circumstances or conditions so it would seem).

Super fragile, it wasn't a huge leap. The floor was marble, but hell.....

 

[Zado]

Re: Messed up with a pickup: can in be saved?

Out of curiosity: I know pickup bobbins get potted with paraffin to reduce microfonic effects and stuff (thus reducing harmonic content as well) but what's the use of all the massive white wax inside the whole pickup structure? Is that a production thing?

 

[dpaterson]

Re: Messed up with a pickup: can in be saved?

Out of curiosity

Uh oh. LOL!!!

No idea. Sorry.

 

[Mincer]

Re: Messed up with a pickup: can in be saved?

Out of curiosity: I know pickup bobbins get potted with paraffin to reduce microfonic effects and stuff (thus reducing harmonic content as well) but what's the use of all the massive white wax inside the whole pickup structure? Is that a production thing?

Well, the whole thing is submerged in wax, and you tend to find a lot more wax in covered pickups. However, I am not sure how much harmonic content is lost- you do gain touch-sensitivity with an unpotted pickup, which is great for cleaner styles where you wouldn't use so much volume and preamp gain.