Opta 739W

• Country
• Germany

• Manufacturer / Brand
• Loewe-(Opta); Deutschland

• Year
• 1938/1939

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 2643

• • alternative name: Löwe Radio

• Picture
• Schematics

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

• Number of Tubes
• 6

• Valves / Tubes
• ACH1 4H2 or AF3 4V1 or ABC1 4E1 or AL4 AM2 140NG or AZ1

• Main principle
• Superheterodyne (common); ZF/IF 440 kHz

• Tuned circuits
• 7 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: Opta 739W - Loewe-Opta; Deutschland

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

• Dimensions (WHD)
• 660 x 350 x 290 mm / 26 x 13.8 x 11.4 inch

• Notes
• ZF=440,75/468/486,75 kHz.

• Net weight (2.2 lb = 1 kg)
• 14.5 kg / 31 lb 15 oz (31.938 lb)

• Price in first year of sale
• 269.00 RM

• Source of data
• Handbuch WDRG 1938 / Radiokatalog Band 1, Ernst Erb

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

• Mentioned in
• Historische Radios (1-5) = zur Verknüpfung mit Modellseiten

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

• Other Models

• Here you find 1623 models, 1364 with images and 1179 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Loewe-(Opta); Deutschland