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  3. 155310-24

Dried up Ferrofluid?

What causes ferrofluid to dry up?  Heat, usage, age?  Is there a usual shelf life, as in, do most 15-20 year old tweeters that originally used ferrofluid, need new ferrofluid?

How is it checked, where is it bought, is the replacement generally the same from tweeter to tweeter?

Thanks ahead of time for any info regarding this!  I figure that there are quite a few good speakers out there that are getting up there in age so this may be something I’ll want to learn to do!
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Showing 4 responses by erik_squires

erik_squires
16,470 posts
 
@jetter

If you can drill a pilot hole straight, and add glue you can build a kit.

Here's one of the simplest kits out there, get your hands dirty and then after you may not think it was all that difficult. :-)

https://www.madisoundspeakerstore.com/2-way-speaker-kits/seas-a26-10-2-way-kit-pair-based-on-the-cla...

Fun to do with your kids.
erik_squires
16,470 posts
 
@jetter

I answered you. Go back and look.

But truth is I have never built cabinets. The cabinet for the SNR-1 was custom built by Lee Taylor of Taylor Acoustics.

The other 2 models used kit boxes. In all cases the part selection and schematics were my own.
erik_squires
16,470 posts
 
If you are interested in getting your hands dirty, consider a new kit instead. Built the whole thing from scratch. :)
erik_squires
16,470 posts
 
Not exactly an end of the world skill I was worried about not having! LOL

What makes you think of this right now? Are you going to be buying some used speakers?
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