Hollow-State Design 3nd Edition

Rediscover the fun and magic of building electronic circuits with thermatrons (vacuum tubes). This book has everything you need to know about the art and science of thermatron design and construction. Notes on the 3rd Edition Besides the numerous corrections and additions, I added a chapter on power thermatrons and power amplifier design as well as a chapter on mixers. I also completely updated the chapter on homebrew techniques, added some additional projects and updated anything I thought was out of date. I added additional material on areas that people emailed me they wanted to know more about.