• Country
• Netherlands

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

• Year
• 1953

• Category
• Pre-stage (adaptor for SW/FM/VHF/UHF incl. built-in), Frequency converter

• Radiomuseum.org ID
• 225564

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

• Number of Tubes
• 2

• Valves / Tubes
• ECH42 AZ41

• Main principle
• Superheterodyne (common); ZF/IF 600 kHz

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Wave Bands given in the notes.

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

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: KG convertor, SW converter UN-22 - Amroh NV Radio Bulletin

• Shape
• Chassis only or for «building in»

• Notes

• Short Wave 5.5 - 18.4 MHz ;  Fishery Wave 1.6 - 4.6 MHz

• Mentioned in
• Radio Bulletin (August 1953)

• 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