• Country
• United States of America (USA)

• Manufacturer / Brand
• Instructograph Co.; Chicago (IL)

• Year
• 1947 ?

• Category
• Miscellaneous (Other, Various) - see notes

• Radiomuseum.org ID
• 136830

• Number of Tubes
• 0

• Valves / Tubes
• unknown_Tube

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 115 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Leather / canvas / plastic - over other material

• from Radiomuseum.org
• Model: Code Instructor - Instructograph Co.; Chicago IL

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 11 x 8 x 7.25 inch / 279 x 203 x 184 mm

• Notes
• Instructograph Code Instructor;
  Training unit for morse code practicising,
  motor driven, built-in tube oscillator, needs exchangeable code tapes - a suitable paper punch tape, four screw terminals for external key and headphones, speed control.
  Compare with mechanically operated "Perfectograph".

• Source of data
• -- Collector info (Sammler)

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

• Other Models

• Here you find 1 models, 1 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Instructograph Co.; Chicago (IL)