• Country
• United States of America (USA)

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

• Year
• 1922

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 186228

• Number of Tubes
• 5

• Valves / Tubes
• unknown_Tube

• Main principle
• TRF without regeneration

• Tuned circuits
• 1 AM circuit(s)

• Wave bands
• Broadcast only (MW).

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

• Loudspeaker
• Horn / Ø 4.25 inch = 10.8 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: Vocaphone Model A 235-B - Firth, John & Co. Firco; New

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

• Notes
• 2 untuned RF stages, non-regenerative detector, 2 AF stages.
  Internal horn. An improved version of the Vocaphone 235-A.

• Source of data
• - - Data from my own collection

• Author
• Model page created by Joseph Woychowski. See "Data change" for further contributors.

• Other Models

• Here you find 23 models, 21 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)