• Country
• United States of America (USA)

• Manufacturer / Brand
• Marshall-Gerken Co., The; Toledo, Ohio

• Year
• 1923 ??

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 120142

• • alternative name: Thoro-bred Radio Products || Thoroughbred Apparatus

• Number of Tubes
• 2

• Valves / Tubes
• UV201 UV201

• 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 stage amplifier Type A W 3 - Marshall-Gerken Co., The;

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

• Dimensions (WHD)
• 9 x 7.5 x 6.5 inch / 229 x 191 x 165 mm

• Notes
• Two input jacks, two output jacks, two filament controls, three power jacks on rear side, probably type AW3.

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

• Author
• Model page created by a member from A. See "Data change" for further contributors.

• Other Models

• Here you find 12 models, 8 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Marshall-Gerken Co., The; Toledo, Ohio