• Country
• United States of America (USA)

• Manufacturer / Brand
• Mack Company; Philadelphia, PA

• Year
• 1925 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 46262

• • Brand: Mack Sincroflex

• Number of Tubes
• 3

• Valves / Tubes

• Main principle
• TRF without regeneration; Reflex

• Tuned circuits
• 3 AM circuit(s)

• Wave bands
• Broadcast only (MW).

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

• from Radiomuseum.org
• Model: Sincroflex [3 tubes] - Mack Company; Philadelphia, PA

• Notes

• Three dials (primary tuning control knobs)

• Price in first year of sale
• 85.00 $

• External source of data
• Ernst Erb

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

• Other Models

• Here you find 3 models, 0 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Mack Company; Philadelphia, PA