Power Amp PSU Board (for e.g. LYNX Amp) - Page 13 - diyAudio
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 5th March 2008, 06:51 PM   #121
diyAudio Member
 
Join Date: Jun 2007
Gary,
I am still working on getting quotes from the board houses. There were some problems with the layout that were holding up their quotes.
I will update this post once I get something back from them.
Thanks,
Donovan
__________________
Donovan
><(((º>.·´¯`·.¸¸.·´¯`·.¸><((((º>.·´¯`·.¸¸.·´¯`·.¸> <(((º>.·´¯`·.¸¸.·´¯`·.¸><((((º>
  Reply With Quote
Old 5th March 2008, 06:53 PM   #122
gary s is offline gary s  Australia
diyAudio Member
 
Join Date: Nov 2002
Location: Australia
Donovan

Thanks for the update, please keep us posted as I will definitely be in for these boards as per Jan,s layout.

Regards

Gary..
  Reply With Quote
Old 6th March 2008, 09:28 PM   #123
diyAudio Member
 
Join Date: Jun 2007
Lightbulb Board Prices

It looks like the boards are going to be roughly $18 each with a minimum quantity of 100 pieces.
The boards would be 3.55" x 11.5", .093 FR-4, with 2oz copper on both sides. Black soldermask on both sides and white silkscreen on the top side.
This is the cheapest quote I have received so far. I didn't think they would be quite this much, but these are big, thick boards with lots of copper.
Let me know what everyone wants to do. I will keep checking prices, and update the thread if I get a lower quote.

Thanks,
Donovan
__________________
Donovan
><(((º>.·´¯`·.¸¸.·´¯`·.¸><((((º>.·´¯`·.¸¸.·´¯`·.¸> <(((º>.·´¯`·.¸¸.·´¯`·.¸><((((º>
  Reply With Quote
Old 7th March 2008, 08:29 PM   #124
gary s is offline gary s  Australia
diyAudio Member
 
Join Date: Nov 2002
Location: Australia
Hi Donovan

Thanks for the update, these prices are OK with me. As you rightly point out they are big boards, but will also make a big PSU to handle all sorts of loads.

If you do find a cheaper quote then much better still.

As I said before, I will be in for at least 10 if this GB goes ahead.

Regards

Gary..
  Reply With Quote
Old 8th March 2008, 07:46 PM   #125
RyanW is offline RyanW  Canada
diyAudio Member
 
Join Date: Apr 2005
Location: Vancouver, BC
Donovan,

The price is a bit more than I would like to spend. I will still go ahead at this price but for a lesser quantity (maybe 6 instead of 10). I don't really know what 2oz of copper means in the real world but if this can be reduced without significantly impacting the quality of the boards then this would be my preffered option.

Just my 2 cents as a frugal DIYer.

Thanks for taking over the group buy. And thanks to Jan for developing the board.

Cheers,

Ryan
  Reply With Quote
Old 8th March 2008, 07:54 PM   #126
Electrons are yellow and more is better!
diyAudio Member
 
peranders's Avatar
 
Join Date: Apr 2002
Location: Göteborg, Sweden
Blog Entries: 4
2 oz. means 70 um thick copper. My supplier doesn't charge extra for thicker copper. All my boards have 55 um copper and the "power boards" have 95 um copper.
__________________
/Per-Anders (my first name) or P-A as my friends call me
Super Regulator SSR03 Group buy
  Reply With Quote
Old 9th March 2008, 05:08 AM   #127
diyAudio Member
 
Join Date: Jun 2007
Ryan,
For a power supply like this, that is going to be used for higher power amps the thicker copper is really necessary. IMHO. These power supply boards are made to be used on larger amps with a higher average power draw, as well as better filtering.
There are other, smaller power supply boards available for smaller amps. They are a little bit cheaper (~$15) and much smaller. This PCB is at least 2-3 times the size and considerably thicker also.
I really don't think you can find a power supply board of this quality for anywhere near this price. If someone knows of one, please speak up. I would like to know about it.

Per-Anders,
Can you check with your supplier for pricing on these boards? If you can get the 95um copper for "free", it might make it cheaper for all of us.
I know I would prefer the 95um copper for these power supply boards.
Let me know if you would be willing to check on that for us.
Thanks,
Donovan
__________________
Donovan
><(((º>.·´¯`·.¸¸.·´¯`·.¸><((((º>.·´¯`·.¸¸.·´¯`·.¸> <(((º>.·´¯`·.¸¸.·´¯`·.¸><((((º>
  Reply With Quote
Old 9th March 2008, 08:47 AM   #128
Electrons are yellow and more is better!
diyAudio Member
 
peranders's Avatar
 
Join Date: Apr 2002
Location: Göteborg, Sweden
Blog Entries: 4
Landoctor, check your email
__________________
/Per-Anders (my first name) or P-A as my friends call me
Super Regulator SSR03 Group buy
  Reply With Quote
Old 9th March 2008, 12:46 PM   #129
...truth seeker...
diyAudio Member
 
Ed LaFontaine's Avatar
 
Join Date: Feb 2004
Location: where the Appalachians rise from the Blue Grass
Default You have options

If (If!) current carrying capacity is a real concern, leave the solder-mask off of those traces in the fabrication stage. The solder deposited there will increase the capacity...at no extra charge (pun intended)
  Reply With Quote
Old 9th March 2008, 03:39 PM   #130
diyAudio Member
 
Join Date: Feb 2008
Exactly. Or just leave the solder mask out of the high current leads, which then can be filled with solder manually.
  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
LYNX Power Amp PCB Group Buy interest Jan Dupont Group Buys 379 6th August 2014 07:16 PM
LYNX Power Amplifier Board Group Buy fungustchan Group Buys 5 7th March 2006 09:49 PM


New To Site? Need Help?

All times are GMT. The time now is 10:26 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