Tube Substitutions for:
21LR8
Triode-Beam Power Tube
| Type | Substitutes | Base Diagram |
|---|---|---|
| 21LR8 |  | |
| Web References | 21LR8 (RCA (HB3)) @ Franks Electron Tubes 21LR8 (General Electric) @ Franks Electron Tubes 21LR8 (RCA (RC30)) @ Franks Electron Tubes 21LR8 @ RadioMuseum.org | |
Triode-Beam Power Tube
MECHANICAL DATA
| Basing | 9QT |