In this issue, we begin with a foundational look at spectrum analyzers, exploring what they are and the different types available, followed by a breakdown of high-voltage differential oscilloscope probes—both of which are critical tools for safe and accurate measurements. If you’re assembling or troubleshooting circuits, don’t miss our guide to crimping tool options that fit virtually any need.

For the makers and tinkerers, we’re excited to present an introduction to G-code and ten essential commands every 3D printing enthusiast should know. You’ll also find practical advice on choosing the right soldering iron when populating your PCBs, plus a hands-on feature on building "A DIY Power Supply Unit for All Seasons."

We will also explore PCB manufacturing techniques, with a spotlight on milling, and share some workspace wisdom with the benefits of using a rack to keep your bench organized and efficient. Lastly, we compare 8-bit vs. 12-bit oscilloscopes, showing how modern 12-bit scopes offer greater resolution and versatility for today’s test and measurement demands.