Home-made Electron Tube Replica by Dr. Rüdiger Walz
Handmade vacuum tubesIn June 1983, my meanwhile late friend Franz Pemmerl and I started with our hobby to rebuild old radio electron tubes. A lot of things had to be learned and a lot of failures taught us how to build tubes. For all those who dream of making thermionic tubes as a hobby I like to give an insight into my hobby workshop.
