• Country
• Germany

• Manufacturer / Brand
• Opta-(Spezial) (siehe auch Loewe-Opta)

• Year
• 1949/1950

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 2703

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

• Number of Tubes
• 5

• Valves / Tubes
• ECH4 ECH4 EBL1 AZ1 EM4

• Main principle
• Superheterodyne (common); ZF/IF 473 kHz

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Ready for FM, has Broadcast, Long Wave, Short wave.

• Power type and voltage
• Alternating Current supply (AC) / 110-240 Volt

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: Rheingold 3650W [Aussenkontakt-Röhren] - Opta-Spezial siehe auch Loewe-

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

• Notes

• Spartrafo, keine Netztrennung. Variable Bandbreite.

  Siehe auch (Loewe-) Opta Rheinland 3650W mit Rimlock-Röhren.

• Price in first year of sale
• 396.00 DM

• Source of data
• Radiokatalog Band 1, Ernst Erb

• Circuit diagram reference
• Lange-Nowisch

• Mentioned in
• Funkschau (4914)

• Literature/Schematics (1)
• -- Original-techn. papers.

• Other Models

• Here you find 49 models, 43 with images and 26 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Opta-(Spezial) (siehe auch Loewe-Opta)