• Country
• Germany

• Manufacturer / Brand
• Grundig (Radio-Vertrieb, RVF, Radiowerke); Fürth/Bayern

• Year
• 1972/1973

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 73935

• • alternative name: Grundig Portugal || Grundig USA / Lextronix

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

• Number of Transistors
• 10

• Semiconductors
• BF314 BF241 BF241 BF241 BF240 BC238 BC308 AC121 AC187 AC188 AA112 AA112 AA112 BZ102

• Main principle
• Superheterodyne (common); ZF/IF 460 kHz; 5 AF stage(s)

• Tuned circuits
• 5 AM circuit(s)     7 FM circuit(s)

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

• Power type and voltage
• Dry Batteries / 4 x 1,5 Volt

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

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Solo-Boy 500K - Grundig Radio-Vertrieb, RVF,

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 224 x 124 x 46 mm / 8.8 x 4.9 x 1.8 inch

• Notes
• UKW: 87,5 - 108 MHz
  KW: 5650 - 16200 kHz
  MW: 510 - 1620 kHz
  

• Net weight (2.2 lb = 1 kg)
• 0.7 kg / 1 lb 8.7 oz (1.542 lb)

• Source of data
• -- Original-techn. papers.

• Author
• Model page created by Wolfgang Bauer. See "Data change" for further contributors.

• Other Models

• Here you find 6209 models, 5438 with images and 4205 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Grundig (Radio-Vertrieb, RVF, Radiowerke); Fürth/Bayern