• Country
• United States of America (USA)

• Manufacturer / Brand
• Firth, John & Co. (Firco); New York, (NY)

• Year
• 1921

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 196172

• 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
• Bakelite, TUBES VISIBLE

• from Radiomuseum.org
• Model: Firco Midget Two-Step Amplifier 40A - Firth, John & Co. Firco; New

• Shape
• Tablemodel, with any shape - general.

• Notes
• The Firco Radio Midget Receiving sets were advertised in the November 1921 Radio News magazine. The 40A Two-Step Amplifier used the Firco Saco-Clad shielded amplifying transformers.

• Price in first year of sale
• 30.00 $

• Literature/Schematics (1)
• November 1921 Radio News advertisement page 371

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

• Other Models

• Here you find 22 models, 20 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Firth, John & Co. (Firco); New York, (NY)