More Thermatron related videos coming soon:

Understanding thermatron types
The Amazing 6BN6
How to create a thermatron stockpile
Designing “Magic Eye” thermatrons into your projects
Simple (and Safe) Thermatron power supplies

and many more…

Hollow-State Homebrewing, the Movie

This 20 minute video created by Grayson Evans, KJ7UM (definitely an OM) is an introduction to making simple homebrew thermatron (vacuum tube) ham radio equipment.  The video takes you through the design, construction, and testing of a simple "Michigan Might Mite" transmitter using a simple thermatron circuit.  It is based on the material in "Hollow-State Design, 3rd Edition" by the author.   It assumes you are new to thermatron circuits and relatively new to homebrewing electronic equipment but know the basics of electronic circuits.

A "Deep Dive" review of this video is available at: https://notebooklm.google.com/noteboo...

Hollow-State Homebrew Techniques

This 19 minute video is a copy of my presentation given at one of the QSO Today virtual hamfests.  It explores many thermatron homebrew techniques and equipment, covering why building with thermatrons is great fun, thermatron building techniques, sample projects, tools and equipment unique to thermatron homebrewing, combining new (Manhattan style) and older tube construction methods, and some interesting thermatron types to experiment with.