• Country
• United States of America (USA)

• Manufacturer / Brand
• Bogen (-Presto), David Co., Inc.; New York, NY / Paramus, NJ

• Year
• 1956 ??

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 197721

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

• Number of Tubes
• 6

• Valves / Tubes
• 6U8 6C4 12B4A EL34 EL34 5U4

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 60 Hz, 117V = 110 -120 Volt

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

• Power out
• 70 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: DO70 - Bogen -Presto, David Co., Inc.

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

• Dimensions (WHD)
• 15.25 x 9.75 x 4.25 inch / 387 x 248 x 108 mm

• Notes

• David Bogen model DO70 is an AC operated audio amplifier.

• Net weight (2.2 lb = 1 kg)
• 22.4 lb (22 lb 6.4 oz) / 10.170 kg

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Set 379 Folder 6 dated 11-57)

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

• Other Models

• Here you find 243 models, 220 with images and 159 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Bogen (-Presto), David Co., Inc.; New York, NY / Paramus, NJ