| Andy's Valve page | Vacuum Tube Boxes |
| Angela Instruments | Parts, Speakers, Tubes |
| Billington Valves and Tubes of Billingshurst | Tubes |
| Direct Components | Tubes, Capacitors |
| EU Valve | Tube Gallery including Tube Data |
| EU Valve | Tube Gallery including Tube Data, mirror |
| Evatco | Tubes |
| Frag Jan zuerst- Ask Jan first | A lot of information regarding old tube radios |
| Hello, Mister Valve! | Information about tubes, Tube Boxes |
| Hugh's Ominous Valve Works | Tube Boxes |
| Patuxent Communications | Parts, Transformers |
| The Old Tube Radio Nework | Old tube radios, Tube Boxes |
| The Tube Store | Tubes |
| Tube World | NOS Tubes |
| Van Weelden | Tubes, Parts |