Modern vs vintage radios with Bob Allison, WB1GCM. Also, using gravity to generate electricity.
An unusual way to keep data servers safe; a conversation with K7NVH about HamWAN
Virtually endless power using diamonds; a chat with Paul Gilbert, KE5ZW, about amateur radio technology in public service.
A celebration of radiosondes, and a discussion with Bob Allison, WB1GCM, about dc power supplies.
A new approach to electromagnetic shielding; a digital archive for the next 1000 years; a chat with Al Rabassa, NW2M, about keeping cool.