Go Back   Home > Forums > Commercial Sector > Group Buys

Group Buys Members group buys

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 25th August 2007, 08:10 PM   #311
diyAudio Member
 
Join Date: Mar 2007
I ended up just mounting it straight to the heat sink. I am thinking now I should have used some sort of thermal paste as well.

As for when I got it to over heat, well, I guess u could say I was definitely giving it a thorough workout. But, thats what I was wondering, if the heat sink would keep up with my demands of the chip. The answer was 'NO' in my case.

Still, I will keep trying to change things here and there and see if I can get any better cooling to the heat sink. First try some kind of thermal paste to transfer heat more efficiently.


Even then, with the overheating problem when giving the amp a workout the quality of the music can't be surpassed. So all in all I am saying win - win situation.
  Reply With Quote
Old 26th August 2007, 01:21 AM   #312
diyAudio Member
 
Join Date: Feb 2007
Location: Gulf Breeze, Florida
jaybombalous,

I think a couple other people on the forum purchased the same heatsink for this amp. Please let us know if using thermal paste or whatever else you do improves your cooling situation enough to make this a suitable heatsink. Did you have it in a case when it overheated?

What size/brand power supply did you use? Do you have any more picture of your build?

I'm happy to hear you are pleased with the sound. I'm looking forward to getting mine together soon.

-claiborne
  Reply With Quote
Old 26th August 2007, 01:32 AM   #313
diyAudio Member
 
Join Date: Jul 2006
www.arcticsilver.com/ceramique.htm
  Reply With Quote
Old 26th August 2007, 11:08 AM   #314
diyAudio Member
 
Join Date: Mar 2007
Quote:
What size/brand power supply did you use? Do you have any more picture of your build?

I bought one from digikey, amveco, 300VA 2x24V back when I did the gainclone LM3886 DIY kit from BrianGT. I just switched out the PCB's. Which is probly where I will start if the thermal paste doesn't work well.

I was just hoping to save a little money, at ~$100 w/ shipping it wasn't something I wanted to really have to buy ATM.
  Reply With Quote
Old 5th September 2007, 10:59 PM   #315
diyAudio Member
 
Join Date: Aug 2004
Location: sunny Queensland
Send a message via Yahoo to stevodude
Quote:
Originally posted by salesmonster
First off, I'm a newbie to this website and groupbuy.

If anyone has an extra PC board and set of inductors that you don't plan on using, I would be interested in purchasing them.

Otherwise, I'll sit on the sidelines and wait for Peranders to start selling the next batch.

It looks like a few people have completed their amps and mentioned the performance. Any new opinions of this amp?

Dave

Yes looks fairly straight and quite well priced, looking at the pricing for 2boards & 4 inductors ends up being around $42aud...

so yea let us know if another GB or spares apear.

Cheers, stevo.
  Reply With Quote
Old 7th September 2007, 06:54 AM   #316
hd38 is offline hd38  France
diyAudio Member
 
Join Date: Jan 2005
Location: Grenoble
I'm interested to participate in a new batch Group Buy of PA03 or buying unused boards if any. Qty 2. Send MP.
  Reply With Quote
Old 23rd December 2007, 06:11 PM   #317
diyAudio Member
 
Join Date: Mar 2005
Location: Derby in England
Hi Guys,

fairly new to DIY but have enjoyed the simple projects like T amp, 3875,3886 and now want to have a go at 4780. are there any boards/inductors/resistors/parts about still.

thanks
__________________
If you're in control you're not going fast enough
  Reply With Quote
Old 26th December 2007, 04:21 PM   #318
Electrons are yellow and more is better!
diyAudio Member
 
peranders's Avatar
 
Join Date: Apr 2002
Location: Göteborg, Sweden
Blog Entries: 4
Boards are available from me but the group buy deal was only this time.
__________________
/Per-Anders (my first name) or P-A as my friends call me
Tube Buffered Gainclone in work |Thread || Diamond buffer |Thread for the group buy | Wiki
  Reply With Quote
Old 26th December 2007, 04:35 PM   #319
diyAudio Member
 
salesmonster's Avatar
 
Join Date: Aug 2007
Peranders:

Do you still have the inductors available as well?

Dave
  Reply With Quote
Old 26th December 2007, 07:40 PM   #320
diyAudio Member
 
Join Date: Jan 2004
Location: Hudiksvall
Yeah, I would like to know that too.. it seems like i may have lost mine. But i'm gonna look once again first.
  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
PA03 Or Pavel Dudek gainclone MadFinn Chip Amps 5 14th April 2011 01:37 AM
WTB: PA-03 PCB - Pavel Dudek's 4780 Amp dviswa Swap Meet 0 2nd October 2008 03:31 AM
Pavel Dudek's PA03 -Where? Stoff Chip Amps 0 1st November 2007 08:07 AM
Components group buy for Pavel Dudek's super Gainclone ex007 Group Buys 167 21st August 2007 06:21 PM


New To Site? Need Help?

All times are GMT. The time now is 07:18 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