• Country
• United States of America (USA)

• Manufacturer / Brand
• Federated Purchaser, Inc. (Acratone, Acratest); New York City (NY)

• Year
• 1935

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 40420

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

• Number of Tubes
• 4

• Valves / Tubes
• 24 unknown_Tube 47 280

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown)

• Tuned circuits
• 2 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Alternating Current supply (AC) / 110 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Acratone 100 [1935] - Federated Purchaser, Inc.

• Shape
• Table-Cathedral-Type (upright, round top or gothic arch, not rounded edges only).

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 3 = 1933 and before

• Mentioned in
• Machine Age to Jet Age II (page 47.)

• Literature/Schematics (1)
• Rider's Volume 6-1

• Literature/Schematics (2)
• Cathedral & Tombstone Radios (page 31.)

• Other Models

• Here you find 209 models, 126 with images and 88 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Federated Purchaser, Inc. (Acratone, Acratest); New York City (NY)