• Country
• Germany

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

• Year
• 1990 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 162373

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

• Number of Transistors

• Semiconductors
• AN7213 TA8100

• Main principle
• Superheterodyne (common)

• Wave bands
• Broadcast (BC) and FM or UHF.

• Power type and voltage
• Dry Batteries / AA: 2 x 1.5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 7 cm = 2.8 inch

• Power out
• 0.3 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Challenge Boy 40a - Grundig Radio-Vertrieb, RVF,

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Dimensions (WHD)
• 185 x 90 x 28 mm / 7.3 x 3.5 x 1.1 inch

• Notes
• 1 LIN-IC der Type TA8100N (AM/FM-ZF, NF-E), 1 LIN-IC AN7213 (FM-V, Front end), Teleskopantenne für FM (40 cm), Ferritantenne für MW (5,5 cm), Anschluß für Kopfhörer über Klinkenbuchse 3,5 mm

• Net weight (2.2 lb = 1 kg)
• 0.380 kg / 0 lb 13.4 oz (0.837 lb)

• Author
• Model page created by Museum Roggenhofer. See "Data change" for further contributors.

• Other Models

• Here you find 6212 models, 5442 with images and 4209 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