• Country
• Germany

• Manufacturer / Brand
• Braun; Frankfurt

• Year
• 1937/1938

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 1232

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

• Number of Tubes
• 6

• Valves / Tubes
• CK1 CF3 CB2 CL4 C/EM2 CY1 U920 or U2020 or EUXX or EUXII or EUIX

• Main principle
• Superheterodyne (common); ZF/IF 488 kHz

• Tuned circuits
• 6 AM circuit(s)

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

• Power type and voltage
• AC/DC-set / 110-240 Volt

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: Super 638GW - Braun; Frankfurt

• Dimensions (WHD)
• 610 x 340 x 325 mm / 24 x 13.4 x 12.8 inch

• Notes
• variable Bandbreite; Ch=239GW

• Price in first year of sale
• 295.00 RM

• Source of data
• Handbuch WDRG 1937 / Radiokatalog Band 1, Ernst Erb

• Circuit diagram reference
• Lange + Schenk

• Picture reference
• Das Modell ist im «Radiokatalog» (Erb) abgebildet.

• Other Models

• Here you find 1067 models, 936 with images and 653 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Braun; Frankfurt