Comments on: Color Organ Triple Deluxe II – Kit and PCB

By: Daniel B.

Daniel B. — Thu, 01 May 2014 21:12:27 +0000

Hi,

First of all, I must say that this kit looks really good. It looks way more professionnal than a lot I saw on the net. Good job !

Technically speaking, could you indicate me how you calculated the filters cutoff frequencies ?

I’ve tried to figure them out using the 1/(2*PI*R*C) with the resistors and capacitors values that I felt being the RC filters components, but I don’t succeed to have any values close to the ones you have on your schematic’s graph, namely the 320Hz, 800Hz and 2.4KHz values.

Some guidance would be very much appreciated.

Regards.

By: The LED Artist

The LED Artist — Tue, 11 Mar 2014 15:24:41 +0000

1. Can’t tell without testing the actual mic, but most likely work.
2. Eight AA batteries in series (12V) should work well.

By: Steve

Steve — Mon, 10 Mar 2014 19:53:35 +0000

Two questions.

1. Without modifying the design, can I substitute a piezo microphone for the direct audio line in?

2. I’m also trying to use a portable battery pack and need at least six hours or run time. What is the smallest battery configuration you think might work?

Thanks, Steve

By: jabelone

jabelone — Sat, 16 Nov 2013 02:30:06 +0000

Sorry, just realised someone has already asked this question below.

By: jabelone

jabelone — Sat, 16 Nov 2013 01:06:36 +0000

Hello, I tried your original colour organ triple deluxe and I couldn’t get it to work for whatever reason. I think my home-brew PCB was the problem. :) I was just wondering how I could adapt this to work with one section from an LED strip? (ie three LEDs) In this case would I just be able to solder the strips straight onto where the LEDs are on the PCB?

By: Luke S

Luke S — Thu, 14 Nov 2013 15:27:11 +0000

Hi there! First of all I would like to thank you for this circuit, it is awesome! I just built one myself but I’m interested in modifying it a little. I’m curious which component is mostly responsible for filtering the frequencies and how I would go about adjusting the frequency range for each circuit. My goal is to try and narrow the low frequency range slightly to try and focus on bass kicks and limit the amount of other instruments that get through that circuit. I am thinking of increasing the value of the 1uF capacitor to maybe a 4.7uF or 10uF cap. Am I on the right track here or will I need to modify another aspect of the circuit as well? Thanks for any advice!

By: berrylite

berrylite — Thu, 08 Aug 2013 19:38:37 +0000

plz mention how to add long led strips, as i’ve made this and i just love it. great design !! now i’m planning to make one for my car so please tell me how to add longer led strips and what changes i need to do with the power supply as it will run on the car battery.

By: berrylite

berrylite — Thu, 08 Aug 2013 19:29:48 +0000

@vishnu prasad you can easily find all the components at in.rsdelivers.com . i’ve made one and its awesome. some parts i’ve found cheaper than RS so i purchased separately. here are some site which u may find useful. electroncomponents.com onlinetps.com and probots.co.in . though RS provides free shipping but their delivery period is too long.

By: vishnu prasad

vishnu prasad — Wed, 10 Jul 2013 17:47:30 +0000

I am a beginner in electronics but I checked your page frequently for more updates because I love led projects.. also electronics. But I made this one here in India I can’t find transistor (MPS2222A) also C4 I got all capacitors but can’t find film so i used ceramic also instead of C4. Is this work with these capacitors and please prefer an equivalent transistor I can easily find.

Thank you.

By: Theo

Theo — Thu, 13 Jun 2013 06:53:51 +0000

Hey, what kind of stereo jack did you use for the audio input? I couldnt find it at radioshack and I don’t know enough to look it up on digikey or someplace like that. If you could just tell me what holes the right and left channels and the ground from the jack, that would be great. Thanks.