| Type | Substitutes | Base Diagram |
|---|---|---|
| AF7 | 4H1, A4AM7, TAF7, TF7, WE34, NHP51, RAF7, VAF7, 4A18_Ultron, 3119_OSW, 4E4, 4F7, A4AM7S, HP4A, OSW3119, VH7 | |
| Web References | AF7 (RFT) @ Franks Electron Tubes? AF7 (Telefunken) @ Franks Electron Tubes? AF7 @ Radiomuseum | |