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Old 1st September 2012, 11:59 AM   #1
tommy55 is offline tommy55  Thailand
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Default my non invert chip amp lm3875tf

I built my own non inverted chip amp LM 3875 TF, only 7 parts. I want to share my story of new diyer. Please see attached my PDF file.
Sayun from Thailand.
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Old 1st September 2012, 12:03 PM   #2
AndrewT is offline AndrewT  Scotland
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Where?
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Old 1st September 2012, 08:30 PM   #3
tommy55 is offline tommy55  Thailand
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I think I used attached management in attaching pdf file.
If it doesn't work, please show me how to attach file.
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Old 1st September 2012, 09:06 PM   #4
tommy55 is offline tommy55  Thailand
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This will link to my pdf file.
how to built non inverted lm3875tf.pdf - ZidoFile.com
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Old 2nd September 2012, 05:40 AM   #5
tommy55 is offline tommy55  Thailand
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I think my thread look like dirty link. It is my first local web sharing.
When Andrew T. asking for the file, I serch inbriefly and choose one,that's all
Now I change the web sharing to MediaFire.
This is my link :-
how to built non inverted lm3875tf.pdf
Sorry for inconvenience.
Sayun
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Old 2nd September 2012, 07:09 AM   #6
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hi tommy55

Very nice work. I think it will be a great source of information for those starting DIY audio.

I have had a quick look through and I think you should double check all your bridge rectifiers in the schematics.

Hey, I even noticed a picture of one of my amps, if you want a higher rez picture PM me your email address.

regards
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Old 2nd September 2012, 07:47 AM   #7
tommy55 is offline tommy55  Thailand
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Hi Greg Erskine
It's my pleasure, my email address is is the last page of pdf file.
Thank you in advance
Tommy55
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Old 2nd September 2012, 09:53 AM   #8
AndrewT is offline AndrewT  Scotland
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attach your data pics & whatever to your post.
Don't use remote servers.
You have no idea when they will go down, No idea when they will cease operation.
You will likely not track the links into posterity and update dead links for us hear.
DIYaudio will do that for you. Attach.
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Old 2nd September 2012, 01:49 PM   #9
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Nice pdf document tommy55

Just 2 questions:
(1) Did you play with various tube buffers before you decided on this specific one?
(2) How does the sound compare with and without the tube buffer?

Thanks
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Old 2nd September 2012, 04:57 PM   #10
tommy55 is offline tommy55  Thailand
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Hi johancraftech
Thank you for interesting.
For your questions, the answers are :
1. No, first I intend to use tube buffer to protect my amplifier and my speakers from various input sources I'd changed as its name, only few hope this will give a tube sound.
2. I'm not sound expert, for me only a little bit change. I think if someone want to improve sound quality he should be better to see pre-tone, equalizer or etc. from tube or solidstate to modify sound.
Don't forget the purposed of buffer, both tube buffer or transistor buffer, sound improve is a little profit.
Regards
Tommy55
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