303B
| Brand | Altec, Altec Lansing |
| Manufacturer | Altec Lansing Corporation |
| Function | Amplifier, Pre |
| Produced | 1952 |
| Country | United States |
| Signal Path | Analog Hardware |
| Tuning Range (FM) | 88MHz-108MHz |
| Tuning Range (AM) | 540kHz-1630kHz |
| Channels | 1 Channel |
| Notes | Recommended for use with A-333A amplifier |