• Country
• Netherlands

• Manufacturer / Brand
• Amroh NV (Radio Bulletin monthly), Muiden

• Year
• 1957

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 224831

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

• Number of Transistors
• 4

• Semiconductors

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Dry Batteries / 4 x 1,5 Volt

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

• Power out
• 0.2 W (max.)

• Material
• Metal case

• from Radiomuseum.org
• Model: Transistorversterker UN-52 - Amroh NV Radio Bulletin

• Shape
• Chassis only or for «building in»

• Mentioned in
• Radio Bulletin (december 1957)

• Author
• Model page created by Rob Majoor. See "Data change" for further contributors.

• Other Models

• Here you find 240 models, 208 with images and 231 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Amroh NV (Radio Bulletin monthly), Muiden