• Country
• Netherlands

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

• Year
• 1950

• Category
• Kit (Parts plus instruction) or building instructions only

• Radiomuseum.org ID
• 223638

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

• Number of Tubes
• 3

• Valves / Tubes
• EF22 EL3 AZ1

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown); 1 AF stage(s)

• Tuned circuits
• 2 AM circuit(s)

• Wave bands
• Broadcast (MW) and Long Wave.

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

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

• Power out
• 4.5 W (max.)

• from Radiomuseum.org
• Model: Tweekringer - Amroh NV Radio Bulletin

• Literature/Schematics (1)
• Radio Bulletin (Febr. 1950)

• 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