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Thread: What mic is this?

  1. #1
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    What mic is this?

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    Can anyone identify it from the picture? I've had it for years and it stopped working.
    ATTACH=CONFIG]104539[/ATTACH]
    Attached Thumbnails Attached Thumbnails 20190513_130045-jpg  

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    I would believe this one >>>> Audio-Technica ATM31 | RecordingHacks.com

    I have one that I bought back in 1990. Paid $139 for it back then.

    Are you operating it off the AA battery or phantom power?
    Mark.......

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    Hi Mark, my amp doesn't have phantom power, so there must be battery power, but I can't see how the battery is accessed. Maybe the battery leaked and glued the thing shut.

    I seem to have a memory of changing the battery years ago. I unscrewed every screw and the windscreen end. I know there's a battery in there because I measure about 200mV DC (as from a dead battery) going into the switch circuit board.
    Thank you very much,
    John

    Ahh... Just read the link you provided. Yes, it must be glued shut from a leaky battery. Hope I can salvage this thing. Thanks again.

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    It should unscrew as shown below...
    Attached Thumbnails Attached Thumbnails atm31-jpg  
    Mark.......

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    Yep, got it. What a mess inside! The top half of the battery disintegrated and the bottom half is stuck in there. I have some excavation to do! Thanks.

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    Good luck!

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    Red face Problem Solved

    Quote Originally Posted by rob aylestone View Post
    Good luck!

    It was tedious... but it's done. SUCCESS!

    I'll be sure to check the battery a little more often.

    Thanks!

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    Quote Originally Posted by Jazzjohn View Post
    It was tedious... but it's done. SUCCESS!

    I'll be sure to check the battery a little more often.

    Thanks!
    I seem to recall that you can wash out battery electrolyte with a solution of Sodium carbonate? Once bone dry a light spray of silicone oil will keep it protected, the stuff you spray on clothes irons.

    Dave.

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    Quote Originally Posted by ecc83 View Post
    I seem to recall that you can wash out battery electrolyte with a solution of Sodium carbonate? Once bone dry a light spray of silicone oil will keep it protected, the stuff you spray on clothes irons.

    Dave.
    Good tip. Thanks.
    John

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    I'm thinking Dave may have meant Sodium Bicarbonate (baking soda) which could be used on an 'acid' type battery such as in a car. If the AA battery is an 'alkaline' type it takes a bit different approach and actually uses a mild acid to neutralize it. Just go easy to avoid liquid seeping into the electronics of the mic.

    How to Clean Alkaline Battery Corrosion | LoveToKnow
    How to clean a battery compartment containing corroded alkaline batteries..
    Mark.......

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