• Country
• United States of America (USA)

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

• Year
• 1936 ??

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 31181

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

• Number of Tubes
• 6

• Valves / Tubes
• 6B5 6B5 6B5 6B5 5Z3 5Z3

• Wave bands
• - without

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

• Loudspeaker
• - For headphones or amp.

• Power out
• 30 W (unknown quality)

• from Radiomuseum.org
• Model: Acratest 1900 - Federated Purchaser, Inc.

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 7 = 1936 and before

• 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)