• Country
• United States of America (USA)

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

• Year
• 1959 ?

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 126371

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

• Number of Transistors
• 5

• Semiconductors
• 2N467 2N466 2N669 2N669 2N669

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Storage Battery for all (e.g. for car radios and amateur radios) / 6; 12 Volt

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

• Material
• Metal case

• from Radiomuseum.org
• Model: BT25 - Bogen -Presto, David Co., Inc.

• Shape
• Chassis only or for «building in»

• Notes
• Mobile audio amp., mic and aux control.

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Set 489 Folder 6 6-1960)

• Author
• Model page created by a member from A. 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