Some time previous to getting my ham license, I was at a friends house who showed me an LC (inductance) meter built from a kit. It was based on a PIC16C22A, and I certainly do like the PIC mcu's, but decided I would embark on the task of re-engineering my own that uses an Atmel AVR chip, the Atmega168. It's been a journey. Also, I am giving away for free the schematics, firmware, and source code as open source under the GPL.
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Inductance, Capacitance, LC Meter
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Here is a new desoldering tweezer tool I just made, it's rough and there will be improvements, very likely. It looks kind of dangerous, but it's really low voltage, under a volt, barely enough to register on my digital voltmeter.
These tools cost hundreds of dollars if you want to buy them somewhere, but I made mine out of cheap radio shack parts and junk. The power supply is also homebuilt, which I also use for my hot air pencil . In the lower part of the photo, what looks like sawdust, is a bunch of resistors that I desoldered in just a few minutes.
Click on any of the pictures for a larger view.
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Desoldering Tweezers
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I've long been a fan of solderless breadboarding. And frankly any kind of breadboarding, even the soldering type. When you need to whip out a circuit fast, don't have time to etch a board, here are some of my tricks.
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Recycling old ISA cards
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