• Country
• Germany

• Manufacturer / Brand
• Ehra, Rudolf Ehrhardt; Werdau/Sachsen (Ostd.)

• Year
• 1949/1950

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 14286

• • alternative name: Erhardt

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

• Number of Tubes
• 4

• Valves / Tubes
• ECH11 EBF11 ECL11 AZ11 or

• Number of Transistors

• Semiconductors
• Tr.Gl.=Metal-rectif.

• Main principle
• Superheterodyne (common); ZF/IF 470 kHz

• Tuned circuits
• 6 AM circuit(s)

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

• Power type and voltage
• Alternating Current supply (AC) / 220 Volt

• Loudspeaker
• Permanent or electro-dynamic (moving coil), system not known yet.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Sinfonie 659W - Ehra, Rudolf Ehrhardt; Werdau/

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

• Dimensions (WHD)
• 500 x 300 x 300 mm / 19.7 x 11.8 x 11.8 inch

• Net weight (2.2 lb = 1 kg)
• 10 kg / 22 lb 0.4 oz (22.026 lb)

• Price in first year of sale
• 295.00 DM

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

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Mentioned in
• Funk-Technik (FT) (4920)

• Other Models

• Here you find 13 models, 6 with images and 3 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Ehra, Rudolf Ehrhardt; Werdau/Sachsen (Ostd.)