• Country
• United States of America (USA)

• Manufacturer / Brand
• General Radio Company; Cambridge (MA)

• Year
• 1920

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 184959

• • alternative name: GenRad

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

• Number of Tubes
• 2

• Valves / Tubes

• Main principle
• Audio-Amplification; 2 AF stage(s)

• Wave bands
• - without

• Power type and voltage
• Storage and/or dry batteries

• Loudspeaker
• - This model requires external speaker(s).

• Material
• Wooden case

• from Radiomuseum.org
• Model: Two Step Amplifier 215 - General Radio Company;

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Dimensions (WHD)
• 9.75 x 6.5 x 8.5 inch / 248 x 165 x 216 mm

• Notes
• General Radio Co. Type 215 2-Stage Audio Amplifier.

• Price in first year of sale
• 50.00 $

• Mentioned in
• September 1920 The Wireless Age magazine advertisement

• Author
• Model page created by Alan Larsen. See "Data change" for further contributors.

• Other Models

• Here you find 238 models, 212 with images and 128 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from General Radio Company; Cambridge (MA)