|eban3 ||08-25-2013 12:13 AM |
Re: sealed pick up repair
I have a Moses graphite key 5 bass ,its about 12 -15 years old and it has moses sealed humbuckers onboard ,the magnet for the b string on the bridge pick up has failed (yes just the B string) . i'm looking for someone in the NYC tri state area whose a wizard at opening up sealed pick ups and repairing them , i realize this may be a crap shoot to fix , no replacements are available from moses as these pick ups havent been made in years , moses suggested i replace them with barts which i'm tying to avoid if only for the reason that i don't know how much it will change the sound of the bass ...ANYONE KNOW SOMEONE WHO DOES THIS KIND OF WORK ?
|line6man ||08-25-2013 12:55 AM |
Epoxy potted pickups cannot be modified. Trying to remove the epoxy would destroy the pickups.
Wax potted pickups, on the other hand, just need to be heated to melt the wax.
|walterw ||08-25-2013 01:06 AM |
yep, epoxy block pickups=no fixing them.
also, how the heck is a magnet gonna fail? since there's usually just one long bar magnet under there, how the heck is the very end of a bar magnet gonna fail?
have you held a screwdriver or something over the pickup and determined that there is in fact no magnet pull under the B string?
|walterw ||08-25-2013 01:08 AM |
besides, moses pickups? the barts might be a real upgrade anyway.
|eban3 ||08-25-2013 01:30 AM |
YEAH MY TECH DETERMINED ITS THE ACTUAL INDIVIDUAL MAGNET THAT FAILED , HE SAYS HE'S ONLY SEEN IT HAPPEN ONE OTHER TIME ON A STRAT AND HE HAS OPENED UP SELAED EPOXY PICK UPS AND REPAIRED THEM BEFORE BUT HAS WARNED IT MAY OR MAY NOT WORK , HES ALSO CURRENTLY INVOLVED IN WATCHING HIS PARENTS IN THIER FINAL STAGE OF LIFE AND HIS FOCUS HAS NOT BEEN ON REPAIRS AS OF RECENT SO IM LOOKING ELSWHERE ....MY CONCERN WITH REPLACING THE PICK UPS IS THAT THE BASS HAS a SOUND I'M AFRAID I MIGHT LOOSE WITH THE BARTS THOUGH IT MAY JUST BE THE INSTRUMENT THATS ACHIEVING THE SOUND AND THE BARTS MIGHT BE FINE IN IT ,,,,,,,ANOTHER CRAP SHOOT
|walterw ||08-25-2013 01:39 AM |
WHY ARE YOU SHOUTING AT US?
anyway, there might be a way to re-magnetize the end of the pickup using strong neodymium magnets outside of it.
|eban3 ||08-25-2013 07:48 AM |
sorry didnt mean to shout
|Meddle ||08-25-2013 03:23 PM |
A weird diagnosis. Magnet failure sounds weird. Has it suddenly degaussed, or broken off somewhere inside the pickup? If it is epoxy sealed, I cannot see how this damage occurred.
|MysticMichael ||08-25-2013 05:51 PM |
The only person in the NYC area I know who might be able to do this kind of work is David Schwab of SGD Pickups, who's in northern New Jersey. But it's also my understanding that epoxy-sealed pickups are permanently sealed, and are not intended to be opened for any purpose.
|FunkMetalBass ||08-25-2013 06:28 PM |
Taking apart an epoxy pickup is asking for trouble. If he was able to correctly diagnose that it's an issue of degaussing on the B-string pole, why in the world did he not suggest you have it re-magnetized? It's a quick process that's so easy it's on eHow.com
Get a hold of a neodymium magnet and a compass and follow this guide to pickup remagnetization: http://www.ehow.com/how_6316790_rema...e-magnets.html
Just make sure you keep the magnet to one side or the other when doing it as the two coils have reversed polarity.
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