303A
| Brand | Altec Lansing, Altec |
| Manufacturer | Altec Lansing Corporation |
| Function | Amplifier, Pre |
| Produced | 1952 |
| Country | United States |
| Signal Path | Analog Hardware |
| Power | 110-120VAC, 60Hz 70W |
| Tuning Range (FM) | 88MHz-108MHz |
| Tuning Range (AM) | 540kHz-1630kHz |
| Tube Complement | 6C4 (x2), 12AT7, 6BA6 (x4), 6AL5 (x2), 6BE6, 6U5 (6G5), 12AX7, 12AU7, 6X4 |
| MSRP (1952) | $279 |
| Channels | 1 Channel |
| Notes | Recommended for use with A-333A amplifier |