Eric Schlaepfer and Windell Oskay, authors of "Open Circuits" (a beautiful book looking inside electronic components) join Chris to talk about the book and their other electronic projects.

Saber Kaygusuz is the CEO of PCB Arts, makers of the EdgeKit and the Vapor Phase One. He joins Chris to talk about manufacturing and design of electronics systems for prosumers and software developers.

Matt Liberty returns to The Amp Hour to talk about the upgraded Joulescope (model JS220) and the trials and tribulations it's been to build a new device during the chip shortage.

This week Chris and Dave discuss charging batteries, outfitting a lab, heat pumps, conference badges, and more!

Kathy Joseph from the Kathy Loves Physics Youtube channel joins Dave to talk about the history of electricity and her new book The Lightning Tamers.

This week Dave and Chris discuss robots taking low end jobs, power measurement around the house, mechanical work on cases, using AI, and more!

Ray Ozzie is the founder and CEO of Blues Wireless, a cellular IoT company that makes it easier to send data to the cloud. Ray joins Chris to talk about his background in the software industry, including a role as Chief Software Architect of Microsoft.

Dave and Chris talk through custom silicon, old Tek videos, prototyping boards, electric vehicles, and more.

Chris is joined by his old friend Dave Young of Young Circuits Designs (3rd appearance). They discuss consulting, the opportunity cost of learning, coaching students, managing consulting client needs, redesigning circuits, and more.

This week Chris and Dave talk about standardized board form factors, cellular devices, logic chips for building clocks, troubleshooting magic, and more!