Thanks Jon, it was fun to see that the reference for the article was a Sams book from 1977. Back then one of the toughest design issues was how expensive, or difficult it was to obtain precision capacitor values. We use the same circuits today and don't think twice about buying 5% capacitors.
Marine mussels and their interaction with the ocean environment has inspired a breakthrough in developing a nontoxic coating for organic electronic components that also could speed up the manufacturing process.
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