| Country | United States of America (USA) |
|---|---|
| Manufacturer | Federated Purchaser, Inc. (Acratone, Acratest); New York City (NY) |
| Model | Acratest 120 - Federated Purchaser, Inc. |
| Year: 1935 | Audio Amplifier |
| Valves | 5: 56 56 45 45 80 |
| Technology | Audio-Amplification; 3 AF stage(s) |
| Power Type | AC / 115 Volt |
| Source | Book: Rider Vol: 6 Page: 4 |
| Type | Configuration | Year | Base | Equivalents |
|---|---|---|---|---|
| 56 | Triode | 1932 | UX5 | 256 A256 C56 CV611 ER56 G56 PH256 PH56 VT56 |
| 56 | Triode | 1932 | UX5 | 256 A256 C56 CV611 ER56 G56 PH256 PH56 VT56 |
| 45 | Triode | 1929 | UX4 | CV610 UX245 |
| 45 | Triode | 1929 | UX4 | CV610 UX245 |
| 80 | FW Rectifier | 1936 | UX4 | 4274A CV617 VT80 |