| Type | Substitutes | Base Diagram |
|---|---|---|
| 8020 | VT-267, 1K20, V40, 56000, WL578, 100R_Eimac, CV2967, V100/25 | |
| Web References | 8020 (Philips) @ Franks Electron Tubes? 8020 (RCA (HB3)) @ Franks Electron Tubes? 8020 (Eimac) @ Franks Electron Tubes? 8020 (Eimac) @ Franks Electron Tubes? 8020 @ Radiomuseum | |