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When the power goes out, most people are just grateful to hear that little engine start up. The lights flicker on, the fridge hums again, and everything feels fine—for a while. But what a lot of ...

A signal generator is a handy bit of kit and with the right components, it’s pretty easy to build one. Fabricating a proper signal generator probe is another matter entirely. [Frank]’s DIY signal ...

If you have a modern function generator on your bench it is quite likely to contain a direct-digital synthesis circuit that creates arbitrary waveforms using a microprocessor controlled DAC. If you ...