• Country
• United States of America (USA)

• Manufacturer / Brand
• Martin H.S. & Co.;Evanston, IL

• Year
• 1955

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 133448

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

• Number of Tubes
• 7

• Valves / Tubes
• 12AY7 6J5 6J5 KT66 KT66 5U4 6X5 0D3

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 117 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Material
• Metal case

• from Radiomuseum.org
• Model: 352A - Martin H.S. & Co.;Evanston, IL

• Shape
• Chassis only or for «building in»

• Notes
• H.S. Martin 352A;
  Power Amplifier, mono, for use in conjunction with preamplifier type 352CA.

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (1-1955 Set 264 Folder 8)

• Author
• Model page created by a member from A. See "Data change" for further contributors.

• Other Models

• Here you find 2 models, 2 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Martin H.S. & Co.;Evanston, IL