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Help with Shure mic

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Jason L
Dec 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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Comments (6)

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Dec 26, 2009 9:57 PM GMT
Jason L Replied:

Thanks Harpaholic!

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.


Dec 27, 2009 1:15 AM GMT
OrthodoxBlues Replied:

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).

Dec 27, 2009 1:48 AM GMT
Jason L Replied:

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

Dec 27, 2009 4:33 AM GMT
BlowsMeAwy Greg Replied:

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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Dec 27, 2009 6:31 PM GMT
Jason L Replied:

Awesome, thanks Greg!

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