• Country
• United States of America (USA)

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

• Year
• 1931 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 130669

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

• Number of Tubes
• 6

• Valves / Tubes
• 24 27 51 24 unknown_Tube unknown_Tube unknown_Tube

• Main principle
• Superhet with RF-stage; Screengrid 1926-1935

• Wave bands
• Broadcast only (MW).

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

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

• from Radiomuseum.org
• Model: Acratone 5 - Federated Purchaser, Inc.

• Shape
• Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.

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

• Mentioned in
• Cathedral & Tombstone Radios (page 28.)

• Author
• Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.

• 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)