Hi,
I have a question about the physical design and what type of materials should I use, because we used Res500 and Cap 400 when we did the pcb and I do not know how will they do with high frequency’s?

You really have to consult with the data sheets for all the parts used in order to make sure they can work the way you expect them to.

 

Is the response okay(does it look like a response of a 4th order filter)?

Yes, it shows 40dB / decade rolloff as it should (see post #73 from @MrAl )

 

Hi everyone thanks for all the helpful tips and answers to my questions the circuit worked as it should and the teacher said it is done well!

 

Hi everyone thanks for all the helpful tips and answers to my questions the circuit worked as it should and the teacher said it is done well!

Well, a big congratulation is in order. Congrats!

Also, you could look back at post #73 for the corrected roll off numbers for the bandpass filter. I had to correct them as they were not correct at first draft.

 

Yes, it shows 40dB / decade rolloff as it should (see post #73 from @MrAl )

Hi,

This is kind of funny. Back in that post, I accidentally just copied the roll off numbers from the other filter types to the bandpass filter type, which of course means it read the same way, twice as great. I had to go back and correct it. Kind of funny what happens when you get in too much of a hurry.

 

Well, a big congratulation is in order. Congrats!

Also, you could look back at post #73 for the corrected roll off numbers for the bandpass filter. I had to correct them as they were not correct at first draft.

Thanks!