Programmable 4-State Tone Generator By IC Dual Timer 556

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Circuit Programmable 4-State Tone Generator By IC Dual Timer 556
Change the value C1 and C4 for change the sound.
fix give
L = GND
H = +5V to +15V (VDD)
Mode Select
B A output
L L Two-Tone
L H Steady
H L Burst
H H Metronone

See the detail adds in circuit picture.

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This entry was posted on Friday, July 20th, 2007 at 10:18 pm and is filed under Audio - Alarm, Timer. You can follow any responses to this entry through the RSS 2.0 feed.