• Country
• Germany

• Manufacturer / Brand
• Hoboton, Bollmeyer & Hoppe GmbH; Bremen-Huchting

• Year
• 1950/1951

• Category
• Pre-stage (adaptor for SW/FM/VHF/UHF incl. built-in), Frequency converter

• Radiomuseum.org ID
• 15000

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

• Number of Tubes
• 3

• Valves / Tubes
• UF42 UF42 UF42

• Number of Transistors

• Semiconductors
• DS80 DS80

• Main principle
• Superheterodyne (common)

• Tuned circuits
• 8 FM circuit(s)

• Wave bands
• FM Broadcast Band Only

• Power type and voltage
• Powered by external power supply or a main unit. / AC/DC 220 & DC 165 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: Hoboton UKW-Super UK8425GW - Hoboton, Bollmeyer & Hoppe

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 275 x 118 x 45 mm / 10.8 x 4.6 x 1.8 inch

• Notes

• Hoboton Einbau-UKW-Vorsatzempfänger UK8425GW mit NF-Ausgang. Empfangsbereich 87,5 - 100 MHz. Symmetrischer Ratio-Detektor, Anschluss für magisches Auge zur Abstimmanzeige (Richtspannung des Demodulators) vorhanden.

  Siehe auch Wechselstrom-Ausführung UK8425W.

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

• Source of data
• Radiokatalog Band 2, Ernst Erb

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

• Other Models

• Here you find 15 models, 10 with images and 4 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Hoboton, Bollmeyer & Hoppe GmbH; Bremen-Huchting