• Country
• United States of America (USA)

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

• Year
• 1929

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 34563

• • Brand: Counterphase

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

• Number of Tubes
• 8

• Valves / Tubes

• Main principle
• TRF without regeneration; Neutrodyne

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

• from Radiomuseum.org
• Model: 81A - Bremer-Tully Mfg. Co.; Chicago

• Notes
• One dial (primary tuning control knob)

• External source of data
• Ernst Erb

• Source of data
• Radio Collector`s Guide 1921-1932

• Circuit diagram reference
• Rider's Perpetual, Volume 2 = 1932 (Models 1931/1932)

• 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)