Nice polish Gainclone - diyAudio
Go Back   Home > Forums > Amplifiers > Chip Amps

Chip Amps Amplifiers based on integrated circuits

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 8th February 2005, 11:19 AM   #1
Electrons are yellow and more is better!
diyAudio Member
 
peranders's Avatar
 
Join Date: Apr 2002
Location: Göteborg, Sweden
Blog Entries: 4
Default Nice polish Gainclone

http://unisonus.com/

The web site was found here when I was checking my own statistics. A very long thread with lot's of pictures.

I see that Peter Daniel is there...
__________________
/Per-Anders (my first name) or P-A as my friends call me
Super Regulator SSR03 Group buy
  Reply With Quote
Old 8th February 2005, 11:44 AM   #2
diyAudio Member
 
jacco vermeulen's Avatar
 
Join Date: Oct 2004
Location: At the sea front, Rotterdam or Curaçao
Send a message via Yahoo to jacco vermeulen
Howcome it resembles BrianGT's pcb so much ?

Thanks for the link, Per.
It looked like it had a couple of interesting postings there, maybe the ones who track something worthwhile there can link to it on this thread.
Hopefully the ones with a decent knowledge of Polish, i only get 15 percent of it but can have my Polish uncle translate it for me.
__________________
The buck stops Here
  Reply With Quote
Old 8th February 2005, 11:55 AM   #3
GNAKED is offline GNAKED  Poland
diyAudio Member
 
Join Date: Oct 2002
Location: Poland
Hi

See also http://www.audiostereo.pl/forum.html polish audio forum

Regards
__________________
GNAKED
  Reply With Quote
Old 9th February 2005, 05:46 AM   #4
Mad_K is offline Mad_K  Norway
diyAudio Member
 
Mad_K's Avatar
 
Join Date: Sep 2002
Location: Norway
Quote:
Originally posted by jacco vermeulen
Howcome it resembles BrianGT's pcb so much ?


Maybe because there are not so many ways to make a optimal layout for this sort of circuit? Except they messed up the grounding scheme on the psu pcb...
__________________
Mads K
  Reply With Quote
Old 9th February 2005, 04:21 PM   #5
Banned
 
Join Date: Mar 2003
Location: Lisbon, Portugal
Quote:
Originally posted by Mad_K
Maybe because there are not so many ways to make a optimal layout for this sort of circuit?
That's not the case.
It's just easier to copy.

Quote:
Originally posted by Mad_K
Except they messed up the grounding scheme on the psu pcb...
Bad copy.
  Reply With Quote
Old 19th February 2005, 11:40 AM   #6
veteran is offline veteran  Poland
diyAudio Member
 
veteran's Avatar
 
Join Date: Feb 2004
Location: Poland
Hello

Those GC boards was made for Audiostereo Forum. It is basic configuration of LM3875 chip with input (C1) and feedback (C2) caps. It is similar to Peter Daniel GC, but I think this is the optimal routing and components placement for such easy module There is everything OK with grounding scheme on the PSU
Closer look on the pictures bellow.

There are two types of those board: normal and gold plated. Second one looks very good


Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.
__________________
Simple audio solutions
blog.unisonus.com
  Reply With Quote
Old 19th February 2005, 11:46 AM   #7
veteran is offline veteran  Poland
diyAudio Member
 
veteran's Avatar
 
Join Date: Feb 2004
Location: Poland
If not the Audiostereo Forum members “pressure” this board would probably look like this

You can see that there is buffer/preamplifier and regulated PS. Jumper enables one of possible configuration: basic GC and integrated amplifier.

Click the image to open in full size.
__________________
Simple audio solutions
blog.unisonus.com
  Reply With Quote
Old 19th February 2005, 02:01 PM   #8
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
Send a message via AIM to Peter Daniel
Quote:
Originally posted by jacco vermeulen
Howcome it resembles BrianGT's pcb so much ?
A line from a movie 'Snatch' comes to mind:

Q: What's inside a car?

A: A wheel and four seats.

Besides having a chip in the middle and 2 caps on the sides, I don't see much resemblance with the other boards.

In some ways the layout is quite innovative and has certain advantages over the boards sold by Brian and me. I would still like to see improvement in resistors placement, but it just me. And why I don't see Zobel there?
__________________
www.audiosector.com
“Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC
  Reply With Quote
Old 19th February 2005, 03:15 PM   #9
diyAudio Member
 
jacco vermeulen's Avatar
 
Join Date: Oct 2004
Location: At the sea front, Rotterdam or Curaçao
Send a message via Yahoo to jacco vermeulen
A Car can be an SUV.
But that doesnt make it the original.

The resemblance gave me the idea that the designer took a peek
at your GC, PD.
__________________
The buck stops Here
  Reply With Quote
Old 19th February 2005, 03:50 PM   #10
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
Send a message via AIM to Peter Daniel
He definitely took a peek, and incorporated some ideas from the original boards, but what's important, he implemented his own creativity and came up with a design that gives me some new ideas.

So everybody's gaining here.

After all, there's only so much you can do with a chip and four resistors (and two caps).
__________________
www.audiosector.com
“Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
My DYI GainClone finished - Nice sound! binary Chip Amps 23 3rd January 2009 12:29 AM
Need help from Polish-speaking member Nisbeth Everything Else 2 21st February 2007 12:47 AM
I'm looking a POLISH HELPFUL GUY...PLS!!! cartman Swap Meet 0 15th November 2006 11:13 AM
Nice power supply for gainclone maybe? Voltaic Everything Else 0 7th July 2006 12:07 AM
Polish recordings el`Ol Music 0 15th April 2006 05:07 PM


New To Site? Need Help?

All times are GMT. The time now is 03:29 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2