Tom Lauten
21 posts
Dec 18, 2018
8:08 AM
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Hi folks,
I have a Shure Spher-O-Dyne 533a and its output has suddenly dropped after I attempted to replace a dead slide switch. Although I was a careful as I could be it now seems to have turned into a low impedance mic. I think the transformer is shot!
I Jerry rigged an impedance transformer I had around and it sounded a LOT better. Does anyone know where I could find a proper replacement transformer that will fit and give the same specified output? I also really can’t tell how to get the old one out! Any help would be GREATLY welcome.
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Tom "Bad Paw" Lauten
Loch Ness, Scotland
www.nimbacreations.com
Last Edited by Tom Lauten on Dec 18, 2018 11:19 AM
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Tom Lauten
22 posts
Dec 20, 2018
6:12 AM
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Well, upon examining the mic and transformer a bit more and performing some serious bench top “spaghetti” work with jumper leads I have found out that (apart from the jammed up switch) everything is still fine.
As I had delved into the dark (and frankly, GOOEY) depths of the mic, a bit of surgery was in order. I trimmed off the bottom 30mm of the mics body. I fitted a new Switchcraft 2501m fitting. That has shortened the mic and made it a full 50 grams lighter. This is ideal as I want to fit an in-line volume onto the mics connector and the less weight and leverage on the mic the better.
I eventually worked out the wiring I was happy with and closed everything up...minus the mystery goo Shure used to put in.
MAN I love this mic! It’s fat and raunchy when cupped and pushed and has some good output.
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Tom "Bad Paw" Lauten
Loch Ness, Scotland
www.nimbacreations.com
Last Edited by Tom Lauten on Dec 20, 2018 6:14 AM
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nacoran
10021 posts
Dec 20, 2018
11:47 AM
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Glad you got it working. My electrical skills top out at plugging things in. If you didn't get it figured out I was gonna page Greg to the thread.
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Nate
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