mircemk| Quantity | Component name | |
| 1 | × | GU81 Vacuum Tube |
| 1 | × | Microwave oven Trafo |
| 1 | × | PC Power Supply |
| 1 | × | Audio output trafo |
| 1 | × | 50W Power Amplifier (module) |
| 1 | × | Graetz bridge with 20pcs 1N4007 |
| 8 | × | Capacitor 470microF/400V |
| 8 | × | Through Hole Resistor, 470 ohm |
DIY simple GU81 Tube Hybrid Amplifier
Very interesting project that shows how a powerful Hybrid Tube audio amplifier can be made in a relatively simple way.