An allpass filter's output will be 90 degrees at 146Hz.walters said:This is that we have to do is this
.05uf with a 22K in parallel the frequency range is ?
An allpass filter's output will be 90 degrees at 340 Hz..047uf with a 10K in parallel the frequency range is?
One must be a resistor..01uf with a 100uf in parallel the frequency range is?
The phase-shift changes with frequency, it is nearly 180 degrees at 1/10th the tuned frequency and nearly 0 degrees at 10 times the tuned frequency. Calculating the phase-shift of different allpass filters in series boggles my mind. Google's links have already calculated them for you.
The formula for most electronic RC circuits: