18 Watt 6F6
| Brand | Thordarson |
| Manufacturer | Thordarson Electric Mfg. Co. |
| Function | Amplifier, Power |
| Produced | 1937 |
| Country | United States |
| Model ID | T-11W18-M |
| Form Factor | Desktop / 19" Rackmount Convertible |
| Signal Path | Analog Hardware |
| Power | 120VAC or 6VDC |
| Output Power | 18W |
| Output Tube | 6F6 |
| Gain (Mic, Crystal) | 119.11dB |
| Field Coil Current | 25W (Compatible with 1, 2, 3 or 4 field coil loudspeakers totaling 5000Ω) |
| Tube Complement | 6J7 (x2), 6C5 (x2), 6F6 (x2), 83, 82 |
| MSRP (1937) | $80.90 |
| Channels | 1 Channel |
| Notes | Integrated mic preamplifier for crystal, ribbon or carbon type and mic current for double-button carbon type. |