• Country
• Germany

• Manufacturer / Brand
• Braun; Frankfurt

• Year
• 1937/1938

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 1234

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

• Number of Tubes
• 6

• Valves / Tubes
• AK2 AF3 AB2 AL4 AM2 AZ1

• 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
• Alternating Current supply (AC) / 110-240 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• Material
• Wooden case

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

• Shape
• Tablemodel, low profile (big size).

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

• Notes
• variable Bandbreite; Ch=239W

• Net weight (2.2 lb = 1 kg)
• 19.5 kg / 42 lb 15.2 oz (42.952 lb)

• Price in first year of sale
• 268.00 RM

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

• Circuit diagram reference
• Lange+Schenk+FS-Röhrenbestückung

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

• Other Models

• Here you find 1065 models, 932 with images and 652 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Braun; Frankfurt