Observations about the universe, life, Lausanne and me

Friday, February 19, 2010

Mic repair

Recently my microphone (indispensable for making Skype calls) started to annoy people I phoned with crackling noises, so today I pulled it apart to see why:

Who the fuck wired this up? Godzilla?






Here's your problem! Short-circuits lead to no-good sound quality. So I desoldered  the electret microphone, hunted down a bit of shrink-tubing and then started to resolder it. Word of advice: Think before you start soldering, or else you'll find that you forgot to thread on a crucial piece, and have to start over again. Not that this happened to me, obviously.

Always store some isopropanol right next to hot soldering irons. Makes your life more interesting.



 I used a C-clamp as a temporary third hand, because some #$%@#^! colleague  had stolen mine.

Hot soldering action

If you don't have a hot air blower, use the soldering iron to shrink the shrink-tubing. It'll stink a bit, but it works just fine.

Shrinky-dink

Here is the finished piece. put some shrink-tubing over the lower part of the mic to stabilise the whole thing a bit. That's how it should have been done in the first place, goddamit. That'll teach me to buy cheap microphones...

Good as new

3 comments:

  1. It amazes me the caliber of work some people perform. The original looked terrible. Smart to use shrink tubing.

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  2. I have a hard time finding mic that works properly without paying an awful lot. I wish I knew how to do that sort of thing.

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  3. @Stephanie: Oh, I use shrink-tubing for everything, especially since I have a near-unlimited supply at the university, ahem. Not that I'd use that for private projects!

    @Marilynne: Just buy a cheapish soldering iron and have at it! If worst comes to worst, you can always use it to burn decorative patterns into wood...

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