Effect of heat on alnico magnets

Dr.J4ckal

New member
Hi guys. I recently installed a baseplate on my strat. The instruction tells me to heat it with soldering iron to make the wax flow and stick to the bobbin. I just afraid I might heat it too much and it affect the magnetic polepiece. It sounds a bit different, more nasal and not as strong in low and highs compared to before I heat the baseplate. Is it possible It lose some magnetism?
 
Re: Effect of heat on alnico magnets

by baseplate, do you mean a new baseplate on the pickup? if so, there may be someone that knows more about this, but I'd think changing the baseplate would stand the chance of having more of an effect than warming it up to melt the wax. did you listen to how it sounded with the new baseplate before you heated it up?
 
Re: Effect of heat on alnico magnets

Well maybe a good question is what wattage is your soldering iron? I would have used a hair dryer which would not have enough heat to affect any magnetism. Unfortunately some soldering irons get quite hot and if you touched the magnets directly, I believe it is possible to alter them magnetically.
 
Re: Effect of heat on alnico magnets

Alnico's are very stable compounds so there is very little chance that you will fry an Alnico magnet. If you put a baseplate on a pickup and ground it there will be a loss of treble frequencies, but that is due to noise being bled to ground rather than loss of magnetic properties. I have cut Alnico 5's in half and they chew cutoff wheels to bits, so there's little chance of actually damaging them.
 
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Re: Effect of heat on alnico magnets

Thanks for the response guys. It's a metal baseplate, the purpose is to make strat bridge pickup sound more like a tele. It's similar to the twang-banger.
My tech-friend who did the job use soldering iron that looks similar to these:
China_Lead_free_soldering_iron_station_AUTOTEK_936_temperature_controlled20119131456316.jpg
I don't know the wattage exactly, but it gets hot real quick, and melt lead free solder very easily.
At that time we also grounded the new baseplate into one of the pot.
Should have used hair dryer or simple double tape :duh:
 
Re: Effect of heat on alnico magnets

The metal baseplate focus the magnetic field upwards, giving it a thicker sound.

It's used when a bridge p'up sounds too thin.

HTH,
 
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