3 Tone Musical Bell

MUSICAL_BELL_PIC

This project is a 3 tone musical bell.

Description

Tone Musical Bell is a project built around BT66T (UM66) IC driving, LM386 has been used as audio amplifier to give extra punch.

Specifications:

  • Input 6 VDC @ 200 mA
  • Output 8 Ohms 0.5 W Speaker
  • Terminal pins for supply voltage and speaker connection
  • Power-On LED indicator
  • Onboard push to ON switch
  • Four mounting holes of 3.2 mm each
  • PCB dimensions 35 mm x 54 mm

CN1 – DC Supply Input
LS1 – Speaker Output
SW1 – Tactile Switch (Push to ON)
D1 – Power-ON LED Indicator

Schematic

Parts List

MUSICAL_BELL_BOM

PCB

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