Todd Bailey has been busy in the 11 years since he was last on the show. He has designed submarine sonar and many different pieces of space electronics, the latest being a hall effect thruster that uses solid propellant for his now sold company Starlight Engines.

Dave and Chris record after a long break between episodes together and discuss new electronics designs they're working on, solar and battery installations, dealing with tariffs, and building at JLC.

Andrew Seddon, founder and CEO of CircuitHub, joins Chris to talk about how CircuitHub has changed over the past 12 years as a startup and how they are continuing to push the boundaries of high mix domestic electronics manufacturing.

Matt Brown is a hardware and IoT security researcher. He joins Chris to talk about best practices for securing hardware that talks to the internet and share stories of products that didn't pass muster.

Tim from Mitxela stops by the show to discuss his extensive portfolio of projects involving, hardware (tiny LEDs), firmware (ridiculously low power processing), software (emulating gameboy), and mechanical (machining jewelry grade objects)

This week Dave and Chris discuss solar optimization, short videos, useless products, cameras, energy monitors, Bluetooth, magnets, and more!

Sam Aldhaher is a power engineer and 3D graphic artist, his Blender visualizations have helped many people understand how RF flows in a variety of circuits. Sam joins Chris to talk about how to get started in Blender and the variety of tools available once you do.

In this episode, Dave and Chris cover environmental monitoring, trade shows, manufacturing, tariffs, new test equipment, and AI coding.

Colin O'Flynn returns to The Amp Hour for a 3rd time to talk about recent developments in security, FPGAs, small scale electronics manufacturing, and the world of academia.

In this episode Dave and Chris discuss solar installs, wacky tariffs, peak power pricing, tiny electronics, oscilloscope triggering, and more.

Michael Gielda returns to the show (for a third time) to talk about the work Antmicro is doing to extend hardware, firmware, and silicon design. Their new tool System Designer allows even more high level testing of full systems, in addition to their popular Renode tool.

Dave and Chris discuss bluetooth boards, what happens when batteries leak, new cellular capabilities in iPhones, AC flicker, old oscilloscopes, and more!