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Old 5th September 2013, 07:04 PM   #31
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Finally I made one!
What a job! lol.
Thank you Olaf and all for showing me the way.
I followed the earlier link but I modded it to some extent.

This is still under construction.
But it's giving nice feel.
So, I am ready for Christmas! Yay!
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File Type: jpg huge-spectrum-analyser.jpg (65.0 KB, 154 views)
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Old 5th September 2013, 08:48 PM   #32
olafk is offline olafk  Germany
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Looks really good. Do you have a video ?

Regards Olaf
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Old 5th September 2013, 08:52 PM   #33
olafk is offline olafk  Germany
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and final schematic.
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Old 6th September 2013, 11:33 AM   #34
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Quote:
Originally Posted by olafk View Post
Looks really good. Do you have a video ?

Regards Olaf
Quote:
Originally Posted by olafk View Post
and final schematic.
Unfortunately I have no camera except my cell phone. I tried to shoot the video with the cell phone but the result is not satisfactory at all. The low frame rate of the cell phone recording is not reproducing the display properly.

I will request a friend who has a camera. If he can do it for me I will post the video and my mods here.

I used high brightness LEDs ( or what I got locally).
I used 820E resistors in series with the LEDs. In the original circuit 680E is used.
Also I found some un-routed sections in the filter board and fixed that.
Also I changed a biasing resistor from 8.2K to 33K. and 3.6M to 3.3M.

I will post everything soon. I'm still testing and fixing minor problems like improper soldering and broken tracks and level adjustment.
I am going to use the computer power supply with this since this circuit operates on 12 volts. So I will post the result too.

Just give me some time.
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Old 8th September 2013, 06:59 PM   #35
olafk is offline olafk  Germany
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Hi Som,

I have seen the video. Looks very impressive. It may be that a faster display for certain music looks even better, but that's just a detail. But everything else is very nice.

regards Olaf
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Old 9th September 2013, 05:36 PM   #36
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Originally Posted by olafk View Post
Hi Som,

I have seen the video. Looks very impressive. It may be that a faster display for certain music looks even better, but that's just a detail. But everything else is very nice.

regards Olaf
Thank you so much Olaf. Yes, the cell-phone camera messed up everything as I told you earlier.
I am also trying to integrate a Boom Box with Active 3 way Xover( my obsession, LOL) with this audio analyser.
I am in the process of making the Amps with 2 TDA2050 chips and 2 LM1875 chips and 2 TDA2030 chips.
I just finished making the PCBs at home today. Let's see how long it takes to complete the insane project.
I will post the final version of everything here in your thread. Hope you will forgive me for your thread-jacking.

Meanwhile kindly give me some advice/ ideas regarding the cabinet.
How did you make your enclosure?
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Old 9th September 2013, 06:52 PM   #37
olafk is offline olafk  Germany
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Hi Som

there is no problem with the thread-jacking. One thing follows another, the theme is the same.
My enclosure has a front of gray plexiglass. In normal light it looks golden brown and opaque. The cover is made ​​of aluminum, nothing special. The LEDs are in this way pleasantly dimmed so that it looks good in the living room. I will make photos next days.

regards Olaf
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Old 20th September 2013, 05:06 PM   #38
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Originally Posted by olafk View Post
Hi Som

there is no problem with the thread-jacking. One thing follows another, the theme is the same.
My enclosure has a front of gray plexiglass. In normal light it looks golden brown and opaque. The cover is made ​​of aluminum, nothing special. The LEDs are in this way pleasantly dimmed so that it looks good in the living room. I will make photos next days.

regards Olaf
Thank you Olaf.
Please take your time.

Meanwhile here are some photos of my on-going work. I added a mini boombox with this monster, lol.
http://www.diyaudio.com/forums/attac...inal-thing.jpg

http://www.diyaudio.com/forums/attac...zy-project.jpg

http://www.diyaudio.com/forums/attac...st-powerup.jpg
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Old 20th September 2013, 07:41 PM   #39
olafk is offline olafk  Germany
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Hi Som,

looks very good.
I see the same problem as me. The construction of the enclosure takes five times as long as the electronics (but makes only half the fun)

My fotos will follow. Promised.

regards Olaf
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Old 22nd September 2013, 03:40 PM   #40
olafk is offline olafk  Germany
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ok, here are the missing photos.

regards
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File Type: jpg Analyser_Bar_Mode.jpg (111.9 KB, 59 views)
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