SHOW NOTES
Grayson’s books available here
https://www.hollow-statedesigns.com/books
3D Box design tool – Bento3D
https://bento3d.design/
Grayson’s videos
https://www.youtube.com/@graysonevans4496
Vacuum tube pad circuit boards for Manhattan style building, from QRP Me
https://www.qrpme.com/?p=product&id=MET
Boat Anchor Manual Archive
https://bama.edebris.com/