• Country
• United States of America (USA)

• Manufacturer / Brand
• Scott; H.H.; Maynard, Massachusetts

• Year
• 1955 ??

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 224965

• Number of Tubes
• 4

• Valves / Tubes
• unknown_Tube

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Dry Batteries

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: Sound Level Meter 411 - Scott; H.H.; Maynard,

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 13.5 x 2.625 x 2.625 inch / 343 x 67 x 67 mm

• Notes

• Sound Level Meter, with several Weighting settings.

• Net weight (2.2 lb = 1 kg)
• 3.5 lb (3 lb 8 oz) / 1.589 kg

• Author
• Model page created by Gottfried Silberhorn. See "Data change" for further contributors.

• Other Models

• Here you find 181 models, 164 with images and 74 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Scott; H.H.; Maynard, Massachusetts