• Country
• United States of America (USA)

• Manufacturer / Brand
• Apparatus Design Co.; Little Rock, Arkansas

• Year
• 1942 ??

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 281291

• Wave bands
• - without

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

• Loudspeaker
• - - No sound reproduction output.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Confidence Tube Tester Model 36 - Apparatus Design Co.; Little

• Shape
• Tablemodel, with any shape - general.

• Author
• Model page created by Aglef Tröger. See "Data change" for further contributors.

• Other Models

• Here you find 5 models, 5 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Apparatus Design Co.; Little Rock, Arkansas