• Country
• Netherlands

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

• Year
• 1954

• Category
• Miscellaneous (Other, Various) - see notes

• Radiomuseum.org ID
• 313813

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

• Number of Tubes
• 1

• Valves / Tubes
• ECC81

• Main principle
• Special principle (see notes)

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 110; 127; 220 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: Electronisch schakelapparaat UN31 - Amroh NV Radio Bulletin

• Shape
• Chassis only or for «building in»

• Notes

• Model UN-31 is an electronic switch that can be used for 1001 applications

• Mentioned in
• Radio Bulletin (June 1954)

• 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