Hollow-State Design is the complete guide to thermatron (vacuum-tube) design with 333 pages of schematics, tips, and how-to examples. The book has everything you need to know about the art and science of thermatron technology

Discover (or rediscover) the fun and magic of building electronic kits with thermatrons. Everything you need to “homebrew build” the kit is included including detailed assembly instructions. Everythinig is soldered directly to the main board or to a component pad that has been superglued to the board. There is no boring through-hole soldering.

Learn how to design and build thermatron homebrew projects with these educational (and fun) videos from KJ7UM.