While the "Aria" line was an in-house brand sold primarily through Allied Stores, Detrola was the primary manufacturer contracted to build the internal chassis and assemblies. The specific part number printed at the bottom right corner (
Part No. 978B) confirms this as an authentic Detrola component assembly.
Dial Layout & Tuning Breakdown
The faceplate features a standard mid-1930s layout optimized for early American broadcasting:
- Kilocycles (AM Broadcast Band): The top arc tracks frequencies ranging from 55 to 160 (representing 550 to 1600 kHz).
- Meters (Police Calls / Shortwave Band): The inner bracket maps out wavelength measurements spanning from 187 to 500 meters. During the 1930s, police departments broadcasted just above the standard AM frequency band. Having a "Police Calls" tracker was a highly popular selling feature for home radios.
- Superheterodyne: The text at the bottom highlights the radio's processing architecture. Invented during WWI, superheterodyne circuits became the industry gold standard by the 1930s because they mixed incoming signals with an internally generated frequency, making tuning drastically more stable and clear. [1]
Historical Significance
Detrola operated out of Detroit, Michigan, and specialized in creating beautifully styled, compact tabletop radios—often using striking wooden veneers or colorful early plastics (like Catalin and Beetle plastic). Models carrying the "Jr." moniker were specifically designed as space-saving, low-cost compact sets meant for bedrooms or kitchens rather than living room centerpiece consoles.
Graphic Clarity Excellent The lettering, numbers, and gold-toned background borders are clear, completely legible, and free of typical sun-fading.
Material Quality Great The plate does not show any signs of warping, deep cracking, or heavy chemical stains.
Surface ScratchesMinor / Moderate ModerateThere are visible hairline scratches across the dark center background. While normal for its age, a light plastic polish (like Novus) could easily remove them