Imperial J 504W

• Country
• Germany

• Manufacturer / Brand
• Continental-Rundfunk GmbH (Stassfurter Imperial); Osterode/Harz

• Year
• 1953/1954

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 19357

• Picture
• Schematics

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

• Number of Tubes
• 7

• Valves / Tubes
• EC92 EC92 ECH81 EF43 EM34 EABC80 EL41

• Number of Transistors

• Semiconductors
• E250C85

• Main principle
• Superheterodyne (common); ZF/IF 454/10700 kHz; 2 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)     9 FM circuit(s)

• Wave bands
• Broadcast, Long Wave, Short Wave plus FM or UHF.

• Power type and voltage
• Alternating Current supply (AC) / 110; 125; 150; 220; 240 Volt

• Loudspeaker
• 2 Loudspeakers

• Material
• Wooden case

• from Radiomuseum.org
• Model: Imperial J 504W - Continental-Rundfunk GmbH

• Shape
• Tablemodel with Push Buttons.

• Dimensions (WHD)
• 600 x 380 x 270 mm / 23.6 x 15 x 10.6 inch

• Notes
• Achtung, nur Spartrafo für Spannungsversorgung: Sekundärwicklung nur für Röhrenheizung und Beleuchtung, Einweggleichrichtung mit AEG Selengleichrichter E250C85. Netzantenne.

• Net weight (2.2 lb = 1 kg)
• 11 kg / 24 lb 3.7 oz (24.229 lb)

• Price in first year of sale
• 318.00 DM

• External source of data
• Erb

• Source of data
• Kat.d.Rundf.GrossH.1953/54 / Radiokatalog Band 2, Ernst Erb

• Other Models

• Here you find 143 models, 127 with images and 88 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Continental-Rundfunk GmbH (Stassfurter Imperial); Osterode/Harz