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Old 5th March 2011, 02:52 AM   #1691
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Default LM3886 dual monoblock

Hi,

This is my GC

Click the image to open in full size.
Click the image to open in full size.

i'm so sory for the bad quality of picture

thxs
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Old 6th March 2011, 02:33 PM   #1692
grakka is offline grakka  Sweden
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My first chipamp, and certainly not the last. Sounds very good to my ears, but I am sure there is room for some adjustment/improvements
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File Type: jpg 5.jpg (184.4 KB, 456 views)
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Old 6th March 2011, 03:40 PM   #1693
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hi grakka,

if it was me, I would either twist the input wires more tightly or just use shielded wire. to and from the pot, too.

the pot also looks a wee bit close to the trafos. I'd worry a little about hum pickup and if you were able to push the pot to the other 'wall' (rear) it could only be better, still.
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Old 7th March 2011, 09:55 AM   #1694
metaxus is offline metaxus  Australia
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So my LM3875 Gainclone finally has a case...

It looks very 80's, but not really that out of place next to the Technics SL-10.

I will get something nicer later on down the track when I have time. Probably in another five years!
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Old 7th March 2011, 02:08 PM   #1695
6L6 is offline 6L6  United States
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It looks great! Don't worry about a "nicer" case, that one is complete and looks good.

When you get a fancy case, build something new in it! Enjoy listening to your new amp!

Do you have any photos of the inside?
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Old 10th March 2011, 12:34 AM   #1696
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Not exactly photo, but here is the final artwork of a brazilian friend, efragnani:
YouTube - Gainclone 02a
Cheers,
Max.
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Andres
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Old 10th March 2011, 12:14 PM   #1697
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i want a matrix surround sound circuits
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Old 14th March 2011, 01:53 AM   #1698
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Default The "HOPE" amp.

MY first LM3875 (of many).

Build diarHope Fronhope bHope Top.jpgahope side.JPGck.jpgt.JPGy on seperate thread.

Last edited by tom wesley; 14th March 2011 at 01:55 AM.
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Old 14th March 2011, 04:41 AM   #1699
norture is offline norture  Indonesia
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Quote:
Originally Posted by tom wesley View Post
MY first LM3875 (of many).
Are you sure those small heatsinks are sufficient for the ICs power dissipation? They are so small and might trigger the internal themal protection circuit a little too soon.
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Old 14th March 2011, 06:24 AM   #1700
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Here it is a video of my tda2050 amp working also there is our usb-mp3/wma/wav/vorbis player , its in developing yet.

In the video you see the volume potentiometer and 4 buttons , play,stop-removeusb- ,<-- , --> . Only works the stop button


Video

regards!!
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