A-333A
| Brand | Altec |
| Manufacturer | Altec Lansing Corporation |
| Function | Amplifier, Power |
| Produced | 1952 |
| Country | United States |
| Signal Path | Analog Hardware |
| Dimensions | 34.5 × 18.4 × 15.9 cm (W × H × D) |
| Weight | 20.6lbs |
| Power | 110-120VAC, 60Hz 110W |
| Frequency Response | 20Hz-22kHz +0/-1dB, 20Hz-100kHz ±3dB |
| Output Power | 15W |
| Output Power (2% THD) | 20W |
| Output Power (2% THD) | 20W |
| Output Power (5% THD) | 27W |
| THD | 0.5% |
| Output Tube | 6L6G |
| Tube Complement | 6SJ7, 6J5, 6L6G (x2), VR75/OA3, 5U4G |
| Finish | Hammertone Gray |
| MSRP (1952) | $90 (MSRP (1953): $111) |
| Channels | 1 Channel |
| Notes | Intended for use with A-433A preamplifier |