| Type | Substitutes | Base Diagram |
|---|---|---|
| MC1/50 | 75-1000, T1060 | |
| Web References | MC1/50 (Philips) @ Franks Electron Tubes? MC1/50 (Philips) @ Franks Electron Tubes? MC1/50 (Philips) @ Franks Electron Tubes? MC1/50 (Philips) @ Franks Electron Tubes? MC1/50 @ Radiomuseum | |