For the triangle, researchers captured proof that resonance occurs even with the notched, open corner, and it may occur in other instrument shapes as well. WASHINGTON, May 6, 2025 – The triangle is a ...

In which we embark on a quest to forge a precise triangle wave, and use that to help set a gold standard for fake sine waves. How well will we fare? A while ago, I needed (or wanted) a pocket-sized ...

This article is part of the Ideas for Design Series: Vol. 3, No. 7. This simple, robust, and low-cost signal generator, based on the LM386 power amplifier IC, provides a trio of audio-band signals ...