• Country
• Netherlands

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

• Year
• 1945 ?

• Category
• Radio part (not a module) 

• Radiomuseum.org ID
• 346456

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

• Main principle
• RF-Circuit or wave trap (separate, can also be an antenna with amp.)

• Tuned circuits
• 1 AM circuit(s)

• Wave bands
• Broadcast, Long Wave and Short Wave.

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• from Radiomuseum.org
• Model: Antenne-Filter 621 - Amroh NV Radio Bulletin

• Notes

• Amroh Antenne-Filter 621,  mit 450-480 kHz Sperrbereich.

• Mentioned in
• -- Original-techn. papers.

• Author
• Model page created by Adrian Riesen. 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