• Country
• People's Republic of China

• Manufacturer / Brand
• Unknown - CUSTOM BUILT: China

• Year
• 2018 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 327761

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

• Number of Transistors

• Semiconductors
• CD7613

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

• Wave bands
• Broadcast and Short Wave (SW).

• Power type and voltage
• Dry Batteries / D: 2x1,5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 6.5 cm = 2.6 inch

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Chao Wai Cha Shi Shou Yin Ji 超外差式收音机 ZX-623 - Unknown - CUSTOM BUILT: China

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

• Dimensions (WHD)
• 175 x 100 x 45 mm / 6.9 x 3.9 x 1.8 inch

• Notes

• 1 integrated circuit: LS7613

  also sold in kit form

• Price in first year of sale
• 11.00 euro

• Author
• Model page created by Didier Tholomier. See "Data change" for further contributors.

• Other Models

• Here you find 526 models, 503 with images and 29 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Unknown - CUSTOM BUILT: China