• Country
• United States of America (USA)

• Manufacturer / Brand
• Bremer-Tully Mfg. Co.; Chicago (IL)

• Year
• 1927 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 34554

• • Brand: Counterphase

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

• Number of Tubes
• 7

• Valves / Tubes
• 26 26 26 27 26 71 unknown_Tube

• Main principle
• TRF without regeneration; Neutrodyne

• Tuned circuits
• 4 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Alternating Current supply (AC)

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: Counterphase 8 - Bremer-Tully Mfg. Co.; Chicago

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

• Notes
• Schematic does not show the B-power supply. Schematic displays only 6 tubes, Bunis calls it a 7 tube battery set.

• Price in first year of sale
• 225.00 $

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)

• Mentioned in
• Collector's Guide to Antique Radios (7th Edition)

• Other Models

• Here you find 48 models, 18 with images and 19 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Bremer-Tully Mfg. Co.; Chicago (IL)