Metronome - A Universal Power supply based on the L200 regulator, which includes an outboard pass transistor to boost output currents up to 4 amps. __ Designed by Andy Collison
Metronome & Pitch Generator - CMOS
IC1 and IC2B quad AND gate form a 2.4576 MHz crystal oscillator plus a 2400 times divider. IC3A provides further division by 16, delivering a 64 Hz stable frequency square wave. This frequency is multiplied (by means of Phase Locked Loop IC5, double decade divider IC4 and IC3B 4 bit binary divider) by the number set by three miniature BCD thumbwheel switches SW1, SW2 and SW3: units, tens and hundreds respectively. __ Contact: Flavio Dellepiane, fladello @ tin.it
Mini Metronome - Linear scale Small size.40 to 208 beats per minute __ Contact: Flavio Dellepiane, fladello @ tin.it
Precision Metronome & Pitch generator - Precision Frequency generator 1 to 999 Hz; Precision Metronome 1 to 999 beats per minute __ Contact: Flavio Dellepiane, fladello @ tin.it
Silent Metronome - File contains several designs, please scroll to find this circuit. The circuit below is a "silent" metronome that keeps the beat without becoming a member of the band. The circuit flashes the 6 volt lamp at a rate set by the 20k potentiometer which can have a dial for setting the desired tempo. Alternately, the potentiometer could be replaced with a rotary switch and selected resistors. The lamp is an ordinary #47 bulb which will give good omni directional brightness but an LED and resistor could be used instead - try a 100 ohm in series with a high-intensity LED. The batteries could be three C or D cells for good life. This circuit could be used to generate "clicks" in a speaker but such metronomes are not particularly pleasing. The ambitious might replace the lamp with a solenoid which taps on the wall of a hardwood box or wooden chime for a "professional" sound. __ Contact: Charles Wenzel of Wenzel Associates, Inc.
Simple Circuit metronome using LM1458 - No circuit description, schematic only__ CdS Electronic