• Year
  • 2003
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 233383
    • alternative name: Grundig Portugal || Grundig USA / Lextronix

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

 Technical Specifications

  • Number of Transistors
  • -1
  • Semiconductors
  • Main principle
  • PLL, Phase-locked loop
  • Wave bands
  • Broadcast, Long Wave, more than 2 x SW plus FM or UHF.
  • Power type and voltage
  • Batteries / addl. power jack / 4 × 1,5 AA / 6 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 3 inch = 7.6 cm
  • Power out
  • 0.3 W (undistorted)
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: Yacht Boy 80 WR 5408 PLL - Grundig Radio-Vertrieb, RVF,
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Dimensions (WHD)
  • 184 x 120 x 40 mm / 7.2 x 4.7 x 1.6 inch
  • Notes
  • Sangean Pro Traveller 80(PT80). Also known as the Grundig YB 80 and in the UK the Roberts Radio Travelling Lite III R9969.

    Main features of this this PLL World Receiver:

    • 17 Bands
      • 14 x SW: 120m, 90m, 75m, 60m, 49m, 41m, 31m, 25m, 21m, 19m, 16m, 15m, 13m, 11m
        • Additionall ability to scan from 1.711- 29.999 MHz.
        • Channel stepping: Selectable between 5KHz and 1KHz
        • Dual conversion
          • 1st IF: 21.44MHz
          • 2nd IF: 450KHz
        • SSB: Variable BFO for CW/SSB detection with fine tuning range of -1.5KHz to +1.5KHz
        • 3.5mm socket for optional SW external antenna 
      • MW: Selectable between 520-1710KHz (10KHz Channel stepping) and 522-1710KHz (9KHz Channel stepping)  
        • Channel stepping: Selectable between 9KHz/10KHz and 1KHz (Fine Tuning)
        • IF: 450KHz
      • LW: 153-283KHz
        • Channel stepping: Selectable between 3KHz and 1KHz (Fine Tuning)
        • IF: 450KHz
      • FM: 87.50MHz-108.00MHz
        • Channel stepping: Selectable between 100KHz/200KHz and 50KHz (Fine Tuning)
        • IF: 10.700MHz
    • 45 presets (18 on SW, 9 on MW, 9 on LW, 9 on FM)
    • Frequency direct entry, Manual scan, and ATS.
    • Local and world time clock, alarm, and sleep
    • Backlit LCD display
    • Local/DX selector
    • Stereo/Mono selector (Stereo via headphones)
    • Audio output:
      • 300mW at 10%THD via the internal 8 Ohm speaker
      • 5mW+5mW over 32 Ohm headphones


    Brief technical details:

    The FM band uses a dedicated TA7358AP (IC1) front end that connects to a TA2057N (IC2) shared with MW, LW, and SW bands. The SW band RF front end uses discrete FET and bipolar transistors to implement dual conversion of the signal that is in the end passed to the shared TA2057N (IC2). A pair of AN7117 (IC4 and IC5) handles the audio amplification. Two regulator ICs are used in the power supply, one LA5003 (IC3) 3VDC for the main PCB, and one S-812C30 (IC202) 3VDC for the MCU PCB.


  • Net weight (2.2 lb = 1 kg)
  • 0.510 kg / 1 lb 2 oz (1.123 lb)
  Yacht-Boy 80 Manual 3044 KB
  • Documents regarding this model
  • Author
  • Model page created by Sandor Selyem-Tóth. See "Data change" for further contributors.

 Collections | Museums | Literature


The model Yacht Boy 80 is part of the collections of the following members.


Forum contributions about this model: Grundig Radio-: Yacht Boy 80 WR 5408 PLL

Threads: 1 | Posts: 3


I found interesting problem in this radio.

On page 13 service manual (processor board) on the left upper corner is note1 about optional diode D201 (RLS4148) for ITALIAN option this board.

My question is: What is difference between Italian and CE versions this radios ?




Damian Roter, 17.Jun.15

Weitere Posts (3) zu diesem Thema.