The Amp Hour

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A weekly podcast about electronics and electrical engineering. Each week, hosts Chris Gammell and Dave Jones talk shop with the designers, founders, and engineers building real hardware, from circuit design and manufacturing to careers in the field.

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Latest episode · Aug 19, 2026

#731 E&M Reality Emerges with Robert Fennis

Robert Fennis joins Chris to demystify the black magic of RF and talk about his open-source, Python-based 3D electromagnetic solver, EMerge. They discuss why simulation is like building a pyramid of knowledge, how silk screen can completely de-tune a patch antenna, and Robert's quest to build the "IKEA of FEM solvers" so hardware developers everywhere can simulate their designs without relying on insanely expensive proprietary software.

01:22:07
with Robert Fennis

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T-shirts Are Back (2026) The Amp Hour T-Shirt had been available for a long time at the Contextual Electronics store until it went defunct. As of today, there’s a new merchandise store for both Amp Hour and Contextual … Read more → Jul 18, 2026

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“The best electronics conversations happen live and unscripted, so that's how we record every one.”