![File:Vintage Zenith Trans-Oceanic Multi-Band Portable Radio, Model H-500, Chassis 5H40, Broadcast Plus Shortwave Bands, 5 Vacuum Tubes, Made In USA, Circa 1952 (34958853946).jpg - Wikimedia Commons File:Vintage Zenith Trans-Oceanic Multi-Band Portable Radio, Model H-500, Chassis 5H40, Broadcast Plus Shortwave Bands, 5 Vacuum Tubes, Made In USA, Circa 1952 (34958853946).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/a/a6/Vintage_Zenith_Trans-Oceanic_Multi-Band_Portable_Radio%2C_Model_H-500%2C_Chassis_5H40%2C_Broadcast_Plus_Shortwave_Bands%2C_5_Vacuum_Tubes%2C_Made_In_USA%2C_Circa_1952_%2834958853946%29.jpg)
File:Vintage Zenith Trans-Oceanic Multi-Band Portable Radio, Model H-500, Chassis 5H40, Broadcast Plus Shortwave Bands, 5 Vacuum Tubes, Made In USA, Circa 1952 (34958853946).jpg - Wikimedia Commons
![Zenith Trans-Oceanic: The Royalty of Radios: Bryant, John H., Cones, Harold N.: 9780764328381: Amazon.com: Books Zenith Trans-Oceanic: The Royalty of Radios: Bryant, John H., Cones, Harold N.: 9780764328381: Amazon.com: Books](https://m.media-amazon.com/images/I/610LMLkcE3L._AC_UF1000,1000_QL80_.jpg)
Zenith Trans-Oceanic: The Royalty of Radios: Bryant, John H., Cones, Harold N.: 9780764328381: Amazon.com: Books
![Vintage Zenith Trans-Oceanic Model H500 Vintage Tube Radio & Manuel (#0915) on Mar 20, 2023 | Rapid Estate Liquidators and Auction Gallery in FL Vintage Zenith Trans-Oceanic Model H500 Vintage Tube Radio & Manuel (#0915) on Mar 20, 2023 | Rapid Estate Liquidators and Auction Gallery in FL](https://p1.liveauctioneers.com/6056/282335/148838863_1_x.jpg?quality=80&version=1679188427)