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Jason LDec 26, 2009 6:19 PM GMT
I found this mic ina junk box and when I got it home and opened it up it looks like it isa Shure 3 digit code CM 1958-1961 "Controlled Magnetic" element.
pictures of it are found here
It is encased in a clear plastic container with some kind of cloth and red wax seal on it (?for warrenty purposes?). How do I open that to get to the element?
So I am not sure how to proceed. the cord is cut so I'll need to get it plugged in to test if it even works.
Any thougths on what to do next?
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I am looking to put it in another mic case, possibly a pipe and gate cap rig that I can make up. Unless I hear that that is a poor way to use this element.
Sounds like I am leaning towards leaving it in the plastic case, no point in tempting fate.
From my reading, the old CR (controlled reluctance) and CM (controlled magnetic) elements are rather robust, so there is a very good chance that the element works. I'm not sure, but I thought that I read somewhere about someone keeping theirs in a container like that in a bullet mic. Do you have the actual code, like 99A86? You'll want to know if it is high impedance, medium, or low, although you can use any of them for a harp mic (the medium and low will require a convertor, assuming you want to play in a guitar amp).
the part with the numbers are covered by the remenents of an old piece of foam or something and trying to scratch it off has left a residue that makes the numbers unreadable. I will try getting it cleaner tomorrow. thanks
From the packaging and everything else, the chances are very good that that is a VERY good element. The paper and red seal are only affixed to the clear plastic. Don't worry about them. Cut the leads where they're soldered to the mic's wires - then the whole element lifts out Carefully straighten the leads, and scrape that brown glue away with an x-acto knife - now you can remove the clear plastic rear cover. I suspect it is a 99H86 controlled magnetic or controlled reluctance - both are outstanding elements. AND the chances that it still works well are very good. If not it will still be a single impedance controlled magnetic - 99A86 or equivalent and will be a good element. You can hook it up to a cable with alligator test clips and plug it into an amp. You can't hurt it this way.
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Awesome, thanks Greg!