AUDIBLE_VISIBLE_METRONOME

Published:2009/7/2 1:19:00 Author:May | From:SeekIC

Produces uniformly spaced beats in synchronism with flashes of LED, at rate that can be adiusted with R1 from one beat every few seconds to ten or more beats per second. Use red Radio Shack 276-041 or similar LED. Add switch in series with battery to avoid disturbing setting of R1. R3 serves as volume control. Add 5-10 μF capacitor across loudspeaker to mellow beat sound if desired.-F. M. Mims. Electronic.'' Music Projects. Vol. 1. Radio Shack, Fort Worth, TX, 1977, 2nd Ed.p 55-59.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Amplifier_Circuit/AUDIBLE_VISIBLE_METRONOME.html

Print this Page | Comments | Reading(3)