Metronome

Published:2013/11/3 20:37:00 Author:lynne | Keyword: Metronome Circuit | From:SeekIC

This circuit uses the 555 timer in an Astable operating mode and generates a continuous output via Pin 3 in the form of a square wave. This is then passed through the 22?F electrolytic capacitor to create a smooth oscillation which then creates the 'toc-toc' sound. The speed of the output is controlled by the 250K Potentiometer (VR1). Schematic Parts List 1x - NE555 Bipolar Timer1x - 1K Resistor (1/4W) 2x - 22?F Electrolytic Capacitor (16V)1x - 250K Potentiometer1x - Loudspeaker (8 Ohm)1x - 9V Voltage Battery



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