I had this cuicuit that generate 1 hz using crystal oscillator.. it is working fine with 9v supply but when i connect 5v it becomes more faster ,, why is that happening ?
I agree, but I would have explained it differently. You should keep the output of IC1a connected to the input of IC1b, and put a 220k ohm resistor instead of the wire that goes from the output of IC1a to the crystal.
I had this cuicuit that generate 1 hz using crystal oscillator.. it is working fine with 9v supply but when i connect 5v it becomes more faster ,, why is that happening ?