• Country
• Austria

• Manufacturer / Brand
• Zerdik; Wien

• Year
• 1934/1935

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 11047

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

• Number of Tubes
• 4

• Valves / Tubes
• AK1 E444 E443H 1805 or 506

• Main principle
• Superheterodyne (common); ZF/IF 128 kHz

• Tuned circuits
• 7 AM circuit(s)

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

• Power type and voltage
• Alternating Current supply (AC)

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: Oktoflex RW631 - Zerdik; Wien

• Shape
• Tablemodel, high profile (upright - NOT Cathedral nor decorative).

• Dimensions (WHD)
• 360 x 435 x 230 mm / 14.2 x 17.1 x 9.1 inch

• Net weight (2.2 lb = 1 kg)
• 11.4 kg / 25 lb 1.8 oz (25.11 lb)

• Price in first year of sale
• 485.00 öS

• External source of data
• E. Erb 3-907007-36-0

• Source of data
• Radiokatalog Band 2, Ernst Erb

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

• Other Models

• Here you find 166 models, 115 with images and 76 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Zerdik; Wien