Theo Paijmans on Twitter: "This morning I traveled with my tube radio to another town - a tube radio expert group offered free repairs. My precious had a hum, indicating leaking elco's.
Build the Retro Regen Radio | Nuts & Volts Magazine
Old tube radios
Adding Bluetooth to a Vintage Radio - nixies.us
THE ARCTURUS RADIO TUBE CORPORATION: A STUNNING SET OF FIVE 1930s STANDUP ADVERTISING DISPLAYS - Arcturus Radio Tube Corporation | Arcana: Books on the Arts
How to Fix a Classic American AM Tabletop Tube Radio : 13 Steps (with Pictures) - Instructables
Hum from old tube consoles in general- Vinyl Engine