| 4Tubes | Tube Database |
| Åke's Tubedata | Tubedata |
| Åke's Tubedata 2 | Tubedata |
| Audio Antik | Tubedatas, Museum, DIY |
| Bill's Ham Radio | Tube Database, Manuals |
| Bill's Ham Radio | Tube Database, Manuals, mirror link |
| Chicago Joe's Tube Information Page | Tube Databases |
| DL7AVF Amateur Radio Web Page | Tube Database |
| Dr. Tube | Schematics, Link List, Tube Database |
| Duncan's Amp Pages | Tube Guitar Amplifiers, Tube Data, Information |
| Electron Tube Data sheets - Type index | Tubedata |
| Electronic Vacuum Tube Reference Manual - KBápps.com | RCA Receiving Tube Manual |
| Elektronenröhren - Electron Tube Gateway | Tubes and Tubedatas |
| EU Valve | Tube Gallery including Tube Data, mirror |
| EU Valve | Tube Gallery including Tube Data |
| FCTG's Old Radios | Tube Radios & Related Vintage Items |
| Frank & Ankie homepage | Tubedata |
| Frank & Ankie homepage | Tubedata |
| Frank's Electron tube Pages | Electron Tube Data Sheets |
| Franz Hamberger -tubes | Electron Tube Data Base |
| JLVillabona | Vintage Radios, Tube database |
| NJ7P Tube Database Search | Tube Database |
| NJ7P Tube Database Search | Tube Database |
| Nostalgia Air | Vintage Radio References |
| QRO | Datas of Amateur Radio Tubes |
| Shortwave Transmitter Tubes | Tubes, Links, Tube Database |
| SPECIAL PURPOSE TO JAN TUBE TYPE CROSS REFERENCE | Tube Database |
| The Tube Directory | Tube Data |
| The Tubes and Valves Online Database - Röhrentabellen | Tube Online Database |
| The Tubesaver screensaver and database | Screensaver, Database |
| Triode Electronics Online Catalog | Tubes, Parts, Tube Data, Schematics, Links |
| Tube Database Search | Tube Database |
| World Power Systems -- Tom Jennings | Electron Tube Data |