Filters of some sort are essential to the operation of most electronic circuits. It is therefore in the interest of anyone in- volved in electronic circuit design to have the ability to develop filter ...

An engine’s need for the best possible lubrication is obvious, but these days everybody wants to extend the oil-drain period as long as they can. Trouble is, the lube’s critically important additive ...

One of the jobs of a circuit designer is to build a measurement system that provides valid input-to-output data as defined by the system requirements over a given frequency range. The four possible ...

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Astrophotography is a hobby with a huge learning curve, and one aspect that can muddy the waters is the dizzying array of filters on the market. What is narrowband? What size do I need? Which are good ...