page_title: National HRO
hierarchical_section_title: National HRO
caption_attribution_description: English: National HRO radio
context_page_description: The original National HRO was a 9-tube HF general coverage communications receiver manufactured by the National Radio Company of Malden, Massachusetts, United States.
context_section_description: The original National HRO was a 9-tube HF (shortwave) general coverage communications receiver manufactured by the National Radio Company of Malden, Massachusetts, United States.
caption: National HRO receiver, c. 1938
exif: {}