• Country
• United States of America (USA)

• Manufacturer / Brand
• Gilfillan Bros.Inc.; Los Angeles (CA)

• Year
• 1925

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 43119

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 4

• Valves / Tubes
• UX99 UX99 UX99 UX99

• Main principle
• TRF without regeneration; 1 AF stage(s); Neutrodyne

• Tuned circuits
• 2 AM circuit(s)

• Power type and voltage
• Dry Batteries

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case, TUBES VISIBLE.

• from Radiomuseum.org
• Model: GN-3 - Gilfillan Bros.Inc.; Los

• Shape
• Tablemodel, slant panel.

• Notes
• The 4 tubes are visible on the GN-3. There are two main dials (primary tuning control knobs). Some collectors believe the set is from 1924. We are not sure yet if 1925 or 1924/25.

• Price in first year of sale
• 65.00 $

• External source of data
• Ernst Erb

• Source of data
• Radio Collector`s Guide 1921-1932

• Mentioned in
• Collector's Guide to Antique Radios 4. Edition

• Literature/Schematics (2)
• Radio Manufacturers of the 1920's, Vol. 2 (page 44)

• Other Models

• Here you find 186 models, 114 with images and 129 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Gilfillan Bros.Inc.; Los Angeles (CA)