Pick up the tiniest of sounds or whispered conversations with this miniature, high-gain amplifier and earphone set. The FK917 is easy to build and is fitted with an on-board condenser microphone. The amplifier gain is trimmer adjustable.

Technical Specification

  • Power Supply : 3VDC @ 40mA max.
  • PCB Dimensions : 2.10" x 1.32" x 0.6" (53.3mm x 33.53mm x 15mm)
  • Recommended Housing : FB03

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