303C
| Brand | Altec Lansing, Altec |
| Manufacturer | Altec Lansing Corporation |
| Function | Amplifier, Pre |
| Produced | 1954-1955 |
| Country | United States |
| Signal Path | Analog Hardware |
| Power | 110-120VAC, 60Hz 70W |
| Tuning Range (FM) | 88MHz-108MHz |
| Tuning Range (AM) | 540kHz-1630kHz |
| Tube Complement | 6BA6 (x4), 6AU6, 6BE6, 6AL5 (x2), 6BQ7A, 12AT7, 12AU7, 12AX7, 6X4, 6U5/6G5, 6AB4 |
| MSRP (1954) | $279 |
| Channels | 1 Channel |
| Notes | Recommended for use with A-333A amplifier AFC added over prior models. |