Röhrenmarken / Tube Brands noch in Arbeit / still under construction
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
| DAVEN |
| DELATONE |
| DEXTRON |
| DIAMOND |
| DIATRON |
| DIETZEN |
| DILCO |
| DILLION |
| DISTATRON |
| DIS X TRON |
| DONLE |
| DRY CELL |
| DUOVAC |
| DURACO |
| DURATRON |
| DURO |
| DUROTRON |
| DXTRON |
| DYN-A-BLUE |
| DYNETRON |
| DEFOREST |
| DELTA |
| DeTeWe |
| DARIO |
| DELTA |