• Country
• People's Republic of China

• Manufacturer / Brand
• Unknown - CUSTOM BUILT: China

• Year
• 2019 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 338693

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

• Number of Transistors
• 2

• Semiconductors
• TA7642 CD9088 CD9088 TDA2822M 2SA812 2SA812

• Main principle
• FLL, Frequency-locked loop (not PLL)

• Wave bands
• Broadcast, more than 2 SW bands plus FM or UHF.

• Power type and voltage
• Batteries / addl. power jack / AA: 2 x 1.5 / 3 V Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5.7 cm = 2.2 inch

• Power out
• 0.1 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Pulsation 9-Band World Receiver KK-9 - Unknown - CUSTOM BUILT: China

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

• Dimensions (WHD)
• 130 x 75 x 29 mm / 5.1 x 3 x 1.1 inch

• Notes

• The Pulsation KK-9 FM TV/MW/SW1-7 Multi Band Receiver uses a TA7642  IC for MW band, one CD9088CB IC for FM / TV band, another CD9088CB IC with a SFU455B filter as SW receiver for the 7 bands, and a TDA2822M IC as the audio power amplifier working in bridge mode to drive the internal 8 Ohm loudspeaker.

  A miniature 2-gang variable capacitor is used for RF tuning.  Two 2SA812-M6 PNP transistors are used for band selection.

  See also these similar looking models

  • Kaide KK-9
  • Kaipeng KK-9
  • Kalade KK-9
  • Karon KK-9
  • Re Leone KK-9
  • Sunny KK-9
  • CMiK KK-9
  • Durabrand KK-9

• Mentioned in
• - - Manufacturers Literature

• Author
• Model page created by Jose Mesquita. See "Data change" for further contributors.

• Other Models

• Here you find 511 models, 490 with images and 24 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Unknown - CUSTOM BUILT: China