• Country
• United States of America (USA)

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

• Year
• 1954 ?

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 135544

• Number of Tubes
• 7

• Valves / Tubes
• 6SF5 6SF5 6SF5 6SF5 6SF5 6SN7GT 6X5GT

• Main principle
• Audio-Amplification

• Wave bands
• - without

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

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

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

• Shape
• Tablemodel, with any shape - general.

• Notes
• 5 channel audio pre-amplifier. SAMS Photofact, date 10-54, set 253, folder 6 features the Bogen models JOH and JOL as the same schematic.

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS ((Set 253 folder 6 date 10-54 title))

• Author
• Model page created by Peter Hoddow. See "Data change" for further contributors.

• Other Models

• Here you find 242 models, 219 with images and 158 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