• Country
• United States of America (USA)

• Manufacturer / Brand
• Weston Electrical Instrument Co.; Newark, N.J.; (Jewell Electrical Instrument Co.; Chicago, IL)

• Year
• 1926–1928 ??

• Category
• Radio module post 1925 (not a part, not a key)

• Radiomuseum.org ID
• 89874

• • alternative name: Jewell

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

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Material
• Metal case

• from Radiomuseum.org
• Model: 506 L 21 - Weston Electrical Instrument

• Shape
• Miscellaneous shapes - described under notes.

• Dimensions (WHD)
• 52 x 52 x 57 mm / 2 x 2 x 2.2 inch

• Notes
• A-supply tester for 3 volt tubes. To be inserted into a free tube socket. Range 0-5 Volt DC.

• Net weight (2.2 lb = 1 kg)
• 0.2 kg / 0 lb 7 oz (0.441 lb)

• Source of data
• -- Collector info (Sammler)

• Other Models

• Here you find 189 models, 164 with images and 101 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Weston Electrical Instrument Co.; Newark, N.J.; (Jewell Electrical Instrument Co.; Chicago, IL)