This tiny circuit telephone receiver circuit is easy to build and is an excellent classroom project to learn about the fundamentals of the operation of a telephone handset. The FK310 is very efficient and needs no external power supply. The kit comes complete with a miniature earphone bud and on-board microphone.

Technical Specification

  • Power Supply : Not required.
  • PCB Dimensions : 2.59" x 1.72" x 0.6" (65.8mm x 43.7mm x 15mm)
  • Recommended Housing : FB03

Download Manual Click Here

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