Year: 2013

Make a 9V Battery Powered Function Generator

Often in synth-DIY trouble-shooting and/or circuit experimentation, a signal source with variable frequency and amplitude is just what you need to test a circuit’s behavior. If the signal source has a variety of wave-shapes, it will serve in more scenarios. This article will present a 9V battery-powered function generator that outputs sine, square, and triangle waveforms. The frequency is adjustable from about 20 Hertz to about 11KHz and the output level can be varied from 0 to about 3V, peak to peak.

Tool Review: All-in-One Eshears

Vampire Tools recently sent me a pair of their All-in-One Eshears, and Iโ€™ve thoroughly enjoyed using them in a variety of settings so far. Vampire has a reputation around the office for creating tools with gorgeous grips, great attention to detail and a finished product with high tolerances and unwavering durability. Thankfully, the Eshears stood up to our high expectations.