• Country
• United States of America (USA)

• Manufacturer / Brand
• Telephone Maintenance Co.; Chicago, Illinois (Telmaco)

• Year
• 1923

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 106328

• • Brand: Telmaco

• Number of Tubes
• 2

• Valves / Tubes
• UV201A UV201A

• Main principle
• Audio-Amplification

• Wave bands
• - without

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

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case, TUBES VISIBLE.

• from Radiomuseum.org
• Model: Telmaco B-A - Telephone Maintenance Co.;

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

• Notes
• Matches Type B-R.
  Made by Tri-City.

• Price in first year of sale
• 20.00 $

• Mentioned in
• Radio Manufacturers of the 1920's, Vol. 3 (p.194)

• Author
• Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.

• Other Models

• Here you find 16 models, 13 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Telephone Maintenance Co.; Chicago, Illinois (Telmaco)