• Country
• Germany

• Manufacturer / Brand
• Braun; Frankfurt

• Year
• 1941/1942

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 1275

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

• Number of Tubes
• 4

• Valves / Tubes
• UCH21 UCH21 UBL21 UY21 or UY1N

• Main principle
• Superheterodyne (common); ZF/IF 452 kHz; 2 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast and Short Wave (SW).

• Power type and voltage
• AC/DC-set / 110; 125; 200; 220 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• from Radiomuseum.org
• Model: K4642GW II - Braun; Frankfurt

• Notes

• Ch= Philips 204U. Sogenanntes Verlagerungsgerät.

• Source of data
• Radiokatalog Band 1, Ernst Erb

• Circuit diagram reference
• Lange + Schenk

• Mentioned in
• Funkgeschichte der GFGF (Nr. 234, 235, 236 (2017))

• Literature/Schematics (1)
• -- Schematic (OTO-Schaltungen)

• Other Models

• Here you find 1061 models, 931 with images and 652 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Braun; Frankfurt