Tube Substitutions for:
5661
Vacuum Pentode
| Type | Substitutes | Base Diagram |
|---|---|---|
| 5661 | 12SK7 |  |
| Web References | 5661 (GE) @ Franks Electron Tubes 5661 @ RadioMuseum.org | |
Vacuum Pentode
MECHANICAL DATA
| Basing | 8N |
| Type | Substitutes | Base Diagram |
|---|---|---|
| 5661 | 12SK7 | |
| Web References | 5661 (GE) @ Franks Electron Tubes 5661 @ RadioMuseum.org | |
| Basing | 8N |