How to design and build a bandpass filter

All very clear information, very helpful. One criticism is the aggressive gating on the audio makes it hard to concentrate; what with the abrupt silence between sentences. Thanks for the upload!

So you don't need an OpAmp for this? Whats the difference between your circuit and the OpAmp version?

Im trying to figure it how to make 433mhz bpf and this is where i start

> If anybody actually reads the stuff I write here, please leave a comment. Thanks.
I did. :)

When to use an inductor instead of a resistor? And how to determine input resistance for 50ohm systems?

So would there be a difference in circuitry between a Butterworth and Chebyshev filter? Which would this filter int he video classify as? +learnelectronics

How can you create a Far UVc 222 nm bandpass filter?

Hi, I am currently using an active band pass filter which uses a non inverting amplifier between the passive high pass and passive low pass filter. Is there a reason for the ranges to not be very close to the calculated values and is there a way to improve the cutoff frequency ranges?

Are the blue cylinders inductances or resistors? Sorry for asking a stupid question but I'm confused.

Dose wattage matter? My speaker is 1000 watts so do I need more components?

This has got to be one of the best explanations i've ever seen. So layman's.

Very comprehensive and straight to the point, thanks for the math as well!

Very clearly explained. Thanks.

Excellent Explanation!

the resistor is not necessarily placed in the signal! it makes nonsense because the resistor itself will reduce all the signal strength

A bit of constructive criticism, it sounds like you have a very aggressive noise gate on your microphone or something. It is quite abrasive imo.

Is the black wire from the function generator connected to ground?

you are awsome......

This is a great explanation! I'm trying to build a bandpass filter for 87.5 MHz with a bandwidth of 200 KHz for radio broadcasting, and I'm curious as to how I would go about obtaining the specific components required.

I know I need a 100nF capacitor, a 1nF capacitor, a 2‎Ω resistor, and a 0.02Ω resistor. Is there a place I can go to buy these online?

Can you design 2400mhz to 2450mhz band pas filter for me to continue my Qo100

Thanks. I really love this channel.

Hi. Can you pleas design a bandpass filter for qo100 satellite frequency range 2400mhz to 2500mhz

i finaly get it

Thank you for this simple explanation. I've looked for days for something like this.

Loved the equations and showing how it all works on the oscilloscope. I came to your site because I wanted to build a band pass filter for the frequency range of 43 KHZ to 46.8 KHZ. I wanted to amplify a magnetic field using transformer wire wrapped around a small steel collar about 100 turns or so. Would a 9 volt battery be safe to use if C1 is 100 nF, R1 = 37 ohms, C2 = 1 nF, and R2 = 3402 ohms. I was planning on adding this onto the end of a pinpointer that detects metal and move it just into position so that once it stops beeping I have it locked down in place. I may be able to add a potentiometer in series just before C1 if that would lower the voltage going into the circuit. I just hope that it doesn't change to band pass filter settings with these values in place. I was hoping to extend the range of it picking metal up instead of one inch extra with just the collar of metal by itself to a few more inches. if that works to add a coating around it that will harden up, and make all the electronic parts water proofed and held together. then run the wires out with the potentiometer further away on a plastic pole. Unless you think that I don't need the potentiometer and just hook it up to a 9 volt battery at full power? I don't know if the field will be too strong and make the device start beeping because the magnetic field got too strong by the pinpointer. So I got to make sure I can lower the strength of the field if need be.

Nice video. I am going to try to build a set of HF bandpass filters for a low power radio (IC-705) so I don't overload it when I use my IC-7610 and amp on a different band.

excellent!

So, it’s like a guitar compressor pedal?

question on audio amplification go before or after pre amplification?

Hello, where can I find the report on the experience of tools and work steps and how the department works

You can download detailed work steps. Thank you

Build a deesser 😂

Wouldn't the 3-dB point of the high-pass portion be about 2khz because of the thevenin equivalent resistance?

Nice explanation...!

Thank you. Neat and quick.

I love your videos! Greats subjects, easy to understand, always something to learn, 💪💪

very intuitive

Thumb nail said. All in the math so I wanted to see the math and you never did math

Nice explanation. Working on an intercom project that requires us to build a bandpass filter for human voice frequency

Can you mention if it is a 1st or 2nd order of bpf?

Design a 2nd order active BSF which will stop the signals of frequency range from 1KHz to 5KHz.

So why am I building toroids for my filters when I can just use resistors? I'm a new ham so to speak, so I don't understand the simplicity of this circuit.

Hi can you make video on one port and two port network synthesis pratically, i'm confused how it's applied on circuit designing

how does that formula give the values for the inductors/resistors and capacitors for both the HPF & LPF 2π RC or π²⁎R⁎C

Very helpful, I was looking for a good tutorial !

Hello, thx for this clear explanation. Have some questions. For a project I need to analize about 5 frequence bands between 100-600 Hz. In order to sharpen the separation is it possible to cascede 2 or more band pass circuits?
Andrea

I thought filters had to have inductors (coils) ??

Sir i have to design 1khz-10khz band pass which capacitance and resistances should i take

What was the input voltage