FK240

DOORBELL SOUND

This economical two-transistor project can be put together by a novice in less than 15 minutes. Ideal as a class-room exercise in soldering and basic transistor function the FK240 comes complete with a 8 Ohm 0.25W speaker. The project can be practically applied in domestic and retail applications.

Technical Specification

  • Power Supply : 6-12VDC @ 105mA max.
  • Dimensions : 1.02" x 1.06" x 0.6" (plus speaker : 26mm x 27mm x 15mm)