• Country
• United States of America (USA)

• Manufacturer / Brand
• Masco Mark Simpson Company Inc., Long Island

• Year
• 1948 ?

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 234473

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

• Number of Tubes
• 15

• Valves / Tubes
• 6J7 6J7 6J7 6J7 6SC7 6SC7 6V6GT 6V6GT 6L6G 6L6G 6L6G 6L6G 5Y3GT 5V4G 5V4G

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 105-117 Volt

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

• Material
• Metal case

• from Radiomuseum.org
• Model: Five Channel Audio Amplifier MA-75N - Masco Mark Simpson Company Inc

• Shape
• Chassis only or for «building in»

• Notes

• AC Operated Five Channel Audio Amplifier

• Mentioned in
• Photofact Folder, Howard W. SAMS (4822-27 Set 52 Folder 27)

• Author
• Model page created by Friedrich Weber † 12.09.2014. See "Data change" for further contributors.

• Other Models

• Here you find 136 models, 104 with images and 107 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Masco Mark Simpson Company Inc., Long Island