| Name | Tabletop Portable Radio |
| Model No. | RCA RADIOLA III-A (4-Tube Super-Regenerative) |
| Country | U.S.A. |
| Year | Manufactured in1924 |
| Manufacturer | Manufactured by RADIO CORPORATION OF AMERICA |
| Notes | Cylindrical vacuum tubes: 6 tubes An early super-heterodyne radio, which excelled at selecting and extracting frequencies from radio waves. It could be used as a portable unit, with batteries inserted on both sides of the cabinet for transport. |
The Taizo Arakawa Collection