• Country
• United States of America (USA)

• Manufacturer / Brand
• RCA (RCA Victor Co. Inc.); New York (NY)

• Year
• 1927

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 54151

• • alternative name: RCA Manufacturing || Victor Talking Machine

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

• Number of Tubes
• 3

• Valves / Tubes
• UX210 UX281 UX281

• Main principle
• Audio-Amplification

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

• Material
• Metal case

• from Radiomuseum.org
• Model: AP-997-A Power Amp. - RCA RCA Victor Co. Inc.; New

• Shape
• Chassis only or for «building in»

• Notes
• used on Victor 9-25, 9-55.

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)

• Other Models

• Here you find 5118 models, 3224 with images and 4145 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from RCA (RCA Victor Co. Inc.); New York (NY)