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A DIY signal generator

A DIY signal generator

After having a lot of fun building the digital oscilloscope from a kit I decided to tackle a signal generator kit next . This makes a perfect match for the scope and will be useful checking circuitry. The design is centered around a “classic” ATMEGA16 μC paired with a common OpAmp to boost the signal and a two line LCD with some push buttons as user interface. Somehow this reminds me of a typical project for student at a technical college and the…

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Weathering a CSX coal hopper

Weathering a CSX coal hopper

This is the first car weathering project using Pan Pastells. I’m quite happy with the outcome and look forward to more projects of this kind. The project started out with an Athearn model of a BethGon coal hopper that I picked up at my favorite train store in the Bay Area – The Train Store in Santa Clara. Interestingly, even as those cars are made out of aluminium prototype pics show some dust and grime that comes close to rust,…

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