TUOXIANG FM/AM/SW Radio MP3 Player T-6621 (JS-5974)

Unknown - CUSTOM BUILT: China

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  • Year
  • 2020 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 356523

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

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • DSP, Digital Signal Processor
  • Wave bands
  • Broadcast, more than 2 SW bands plus FM or UHF.
  • Details
  • HD or solid state memory
  • Power type and voltage
  • Batteries / addl. power jack / AA: 3 x 1.5 or Li-Ion 3.7 / USB 5 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5.5 cm = 2.2 inch
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: TUOXIANG FM/AM/SW Radio MP3 Player T-6621 - Unknown - CUSTOM BUILT: China
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Dimensions (WHD)
  • 120 x 70 x 30 mm / 4.7 x 2.8 x 1.2 inch
  • Notes

  • The TUOXIANG T-T-6621 portable radio features 21 bands and MP3 player. It is sold under several brands, like the JINSERTA JS-5974.

    Main Specifications

    • FM: 70 - 108 MHz (2 bands)
    • AM: 522- 1620 kHz
    • SW: 2.3 - 21.95 MHz (continuous, with 18 bands for quicker jumping)
    • Manual, direct entry, and automatic and store tuning
    • Rotary encoder knob for easier tuning.
    • USB/TF sockets for MP3 playing
    • 3.5mm earphones jack
    • Power Supply using a dual battery system
      • One removable rechargeable Lithium 18650 battery (3.7V)
      • Or else three removable "AA" dry batteries (4.5V)
      • Mini-USB port to charge the 18650 battery (5V, 1A)

    Brief technical description

    There are at least two PCB assembly versions with slightly different designs: The "T-9926  2020.05.15" and the "T-6621 T=1.0mm  2021.07.30". This analysis covers the later version.

    The receiver uses a BK1198 DSP tuner (U4), a R25/2SC3356 NPN RF BPF Front-End (Q1), a A7/BAV99 protection diodes (D4) on the telescopic antenna, and a XA8871/XPT8871 mono audio power amplifier driving the internal 4 Ohm 3 Watt speaker.

    The media player and radio management is handled by a unknown AH069ACL chip (U2) and a 24C08N flash memory (U1).

    Additional cmponents are used for power supply and contol functions, like a S2UD LDO regulator by MICRONE (U6), a 3A? switching transistor (U5), two A1SHB/Si2301 P-MOSFET (Q2, Q7), three J6/S9014 transistors (Q3, Q4, Q5), and two SS14 power Schottky diodes (D2, D3).

  • Net weight (2.2 lb = 1 kg)
  • 0.179 kg / 0 lb 6.3 oz (0.394 lb)
  • Author
  • Model page created by Jose Mesquita. See "Data change" for further contributors.

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The model TUOXIANG FM/AM/SW Radio MP3 Player is part of the collections of the following members.

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