Introduction: Salvaging Magnets From Speakers.
'Tis the season to salvage junk! Where I live, poeple put out big piles of trash every year in April. It's amazing what one can find. Last year I must have found 15 or 20 speakers. I first found out about rare earth magnets from the Smash Lab episode ''High Rise Escape''. I soon learned that they could be found in old speakers. Alright, enough talking, go find some speakers!
Step 1: Open 'em Up.
Okay, now that you've found some some speakers (you have found some, haven't you?) get out a hatchet and knock in the back and then the sides. If you don't have a hatchet, you could use a hammer. If you don't have a hammer either, then what the heck are you here in the first place (I mean, who comes to a site about making things without a hammer!). It's a good idea to do this outside, as it makes rather a mess.
Step 2: Pry the Magnet Off.
This part's simple. Just hammer a crowbar in there and pry the thing off! Actully, you should wedge a flat head screwdriver in first and get a bit of a gap first.
Step 3: Do It Again!
Now that you've got one magnet, try for 20! I've been collecting for 2-3 years and I've got almost 40. My best one looks somthing like a a landmine, and weighs, oh, I don't know, 30, maybe 40 pounds.
What to do with all those magnets? Maybe you could sell them on Ebay, or start a speaker repair shop - it's up to you. Have fun with this.
Black Hole over and out
3 years ago
That's just wrong. Most speaker magnets, including ALL those shown in original poster's pile-o-magnets, are NOT rare earth magnets. They're common ferrite / ceramic magnets (iron oxide.) Rare earth magnets (mostly Neodymium) are almost always plated with a nickel or similar coating (ie. a shiny metallic / mirror finish), to protect them from oxidizing / rusting.
7 years ago
When I helped clear out my brother's (Chaz Clapp) belongings two years ago after he died, I only wanted small items for the flight home. I took his stereo speaker magnet (already removed from speaker) because it was so big and powerful. I love magnets. Now I learn from you that it's a rare-earth magnet! which is highly recommended for finding studs on interior walls. I just learned about rare-earth magnets in my research. I'm about to hang some shelves, and I am going to use this speaker magnet, I've used smaller ones on walls, having figured out that they would work as well as a magnetic stud finder. The wall i'm going to be working on I'd covered with carpet to help muffle sound in my adjoining room when my tenant was using it for a recording studio. I'm a 73 year old single woman, self-taught do-it-your selfer, mostly by trial and error. My brother was a recording and recording equipment addicand hoarder since he was 14 and used reel-to-reel. I know he'd get a kick out of how I'm using his speaker magnet.
Reply 7 years ago
If you are interested in magnets, look up Magswitch products. I don't do any woodworking or welding so most of their products don't really have any use for me, but they actually make a miniaturized version that is small enough to fit on a keychain. They are permanent magnets that can be switched "off" using two magnet's fields (one stationary, the other can be twisted) and steel walls to channel the field. here is a good writeup from a science site - https://www.kjmagnetics.com/blog.asp?p=magswitch -. My girlfriend is getting me the "Magswitch Magjig Keychain 60" or something like that, ill know how good it is. It holds 60 pounds, but they make massive ones that hold up literal tonnes. It is crazy the things you can do with magnets.
7 years ago
That is a lot of BFF&I did you break many?
8 years ago
Objectively speaking the hatchet was overkill but I'm always a fan of overkill....
9 years ago on Introduction
I almost did what you did, but then I found out hoe to save the speakers. All it takes is some glue , or GE Sealant and some paper, plastic or light material. Make a patch and glue it where the speaker is cracked. Let it dry and its fixed. Sounds just like new. I save my big speakers from the landfill. Very happy. FYI