This is not a project that has a very well defined start or end ( I will explain more a bit later). But after all, it is the journey that is most interesting!
4-400A Tetrode HF Amplifier Project
AMPS Mailing List Archive
Roll Your Own Power-Transformers - Link no longer active.
Peter W. Dahl Co.
Care And Feeding Of Power Grid Tubes - New Version - Link updated 03-22-2010
Svetlana technical Bulletins - Link no longer active
Screen Current and Grid Driven Tetrode Linear Amplifiers
Basic Tube Design - Link no longer active