• Country
• Germany

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

• Year
• 1989

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 128457

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

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

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Superheterodyne (common); ZF/IF 465/10700 kHz

• 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 6 cm = 2.4 inch

• Power out
• 0.3 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

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

• Shape
• Design Radio or Novelty / Gadget - fancy or unusual shape.

• Dimensions (WHD)
• 183 x 90 x 28 mm / 7.2 x 3.5 x 1.1 inch

• Notes

• Der Boy Challenge ist ein Designer- Mini- Radio. Eine Kopfhörerbuchse ist eingebaut.

  Dreh- und schwenkbare Teleskopantenne für FM, eingebaute Ferritantenne für AM, NF Verstärker mit Loudness.

  Frequenzbänder:
  UKW: 87,5 - 108MHz
  MW:  515 - 1630kHz

  Made in P.R.C.

• Net weight (2.2 lb = 1 kg)
• 0.280 kg / 0 lb 9.9 oz (0.617 lb)

• Source of data
• -- Original prospect or advert

• Author
• Model page created by Martin Bösch. See "Data change" for further contributors.

• Other Models

• Here you find 6196 models, 5420 with images and 4191 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Grundig (Radio-Vertrieb, RVF, Radiowerke)