AKG K601 headphone repair

I stand up, take a step from the desk, but a mix of cables was tangled around my leg, and pulled hard on my AKG K601 headphones. The left speaker stopped making a sound. This particular headphone model, which I absolutely love, is discontinued, but no worries. I suspected a broken soldering joint, which would be easy to fix. As usual, the hard part is opening the sucker up to get at the actual problem.

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N900 to HTC One X+ Headset Conversion

The N900 smart phone has a nice in-ear headset, but it doesn’t conform to current headset standards. However, headsets are incredibly simple and there is no reason to buy a new one just for such a simple compatibility problem. So here is what to do if you find yourself in this situation. The N900 headset and the HTC One X+ headset have slightly different pin-outs: The tip connects to the left speaker signal (L) on both devices.

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Vintage Camera Repair: Agfa Silette-LK

The Agfa Silette-LK is a vintage camera that operates without a battery, yet it features a semi-automatic light meter. The light meter operates electrically with a selenium cell, and is mechanically coupled to the exposure and ISO film speed setting. This camera had the problem that the exposure and aperture could not be set individually. As it turns out, these settings were coupled by two plastic rings that were stuck together.

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HSDPA USB stick repair

I noticed a friend of mine used a clothespin to keep her USB surf stick working, so I suspected a broken solder joint. It was easy to fix, so here are some disassembling instructions for that particular HUAWEI Mobile Connect (Model E160) HSDPA USB stick. It’s a real shame so much electronics is thrown away at the first sign of trouble, as quite a lot of it is actually repairable. Often it is a simple problem such as a broken solder joint due to mechanic stress or blown electrolytic caps due to wear.

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