• Country
• United States of America (USA)

• Manufacturer / Brand
• DeVry Technical Institute; Chicago

• Year
• 1945 ??

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 327493

• Number of Tubes
• 7

• Valves / Tubes
• 6F5 6J7 6J7 6N7 6L6 6L6 5X4

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 110-120 Volt

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

• Material
• Metal case

• from Radiomuseum.org
• Model: PA Amplifier ND30 - DeVry Technical Institute;

• Shape
• Tablemodel, low profile (big size).

• Notes

• PA Amplifier; inputs: 2x Microphone / Projector, 1x Phonograph / Radio.

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

• Other Models

• Here you find 8 models, 7 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from DeVry Technical Institute; Chicago