audioguru said:
Changing the capacitor and changing the resistor in a RC circuit does exactly the same thing.
walters said:
what do you mean NO?
The Capacitor Value changes the frequency Range
uh, no. The capacitor value is a number. Audioguru pointed out a good equation for finding out the frequency based on a resistor and a capacitor.
a .01uf can only phase shift so many frequencys range so u have to change the .01uf to another value like a .47uf to change the frequency range
NO! a capacitor is not a device that changes the frequency range. If it was that, radios wouldn't exist!
The resistor can't go past the .01uf frequency range without changing the .01uf to another value like a .47uf to get a different frequency range with different phase shifts
Your theory has blown me away. In other words, it doesn't make sense.
100k with a .01uf is different than a 100k with a .47uf phase shift network whats the difference?
First of all, Let's remove "phase shift" out of your vocabulary because it is screwing you up.
Secondly, the absolute, most ridiculous simple time formula, while ignoring all detail, enhanced factors is:
Time = resistance * capacitance
Now, that is true to an extent because a capacitor stores charges, but not instantly. the value of the capacitor can determine the amount of charge a capacitor can hold.
Now a resistor in series with it limits the current entering the capacitor. and the less current there is entering the capacitor, the longer it takes for it to charge.
Of course, the other gods could elaborate more, but thats where the R * C comes from in audioguru's equation.
Frequency is 1 / time.
Now if you wanted a frequency range, you will have to continually play with your resistors, and capacitors, and follow Audioguru's equation over and over again.