I MADE 8 555 TIMING CIRCUTS AND THEY ARE PUTTING OUT A WAVE THATS A LITTLE DIRTY AND THE 1O0K POTS DO A LITTLE PITCH BUT NOT MUTCH DO I NEED TO ADD SOME RESISTORS. oR DO I NEED TO CHANGE OUT THE CHIPS TO 7555 ANY HELP PLEASE. HAS ANY 0NE HAD ANY LUCK WITH THE 555 CHIPS IF SO WHAT DID YOU DO

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