Gb: Rectifier boards - alternative - 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 21st April 2009, 09:15 PM   #1
Electrons are yellow and more is better!
diyAudio Member
 
peranders's Avatar
 
Join Date: Apr 2002
Location: Göteborg, Sweden
Blog Entries: 4
Alternative design to cvillers board split into it's own thread


Nice board, looks like mine When my green boards are gone I'll plan to order 4-layer boards, 4 x 70 um copper with gold pads to a substantially lower price than 7 USD if many are interested. I don't have the time to administrate a group buy but you can talk nicely to me and I can order and pass on the package for distribution. Schematics and pcb layout
__________________
/Per-Anders (my first name) or P-A as my friends call me
  Reply With Quote
Old 27th April 2009, 09:55 AM   #2
Electrons are yellow and more is better!
diyAudio Member
 
peranders's Avatar
 
Join Date: Apr 2002
Location: Göteborg, Sweden
Blog Entries: 4
The interest is too low so I will put this on hold. I don't mind deliver a batch for distribution but someone has to be in charge. I don't have any mimimum number, so 50 or 100 boards is OK by me.

Case closed for the time being.
__________________
/Per-Anders (my first name) or P-A as my friends call me
  Reply With Quote
Old 28th April 2009, 08:20 PM   #3
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
Send a message via AIM to Peter Daniel
I could never understand why people design rectifier boards like that: they are not particularly cheap, take space and you need to buy additional heatsinks.

The boards I'm using are designed to use chassis for heatsinking, are way smaller and my cost is approx $0.20/pc.

They will also work with 2 pin devices, both TO-247, TO-220
Attached Images
File Type: jpg diodes.jpg (97.9 KB, 241 views)
__________________
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 28th April 2009, 08:35 PM   #4
Electrons are yellow and more is better!
diyAudio Member
 
peranders's Avatar
 
Join Date: Apr 2002
Location: Göteborg, Sweden
Blog Entries: 4
Peter, your idea works also but my boards have room for snubbers and may cope with a higher current and you can also use spade connectors. In a tight spot you can have better cooling with my idea and if you really want to mount them like in your case you can do that but the board is a bit bigger. That's the drawback but if something is versatile you may also get drawbacks.


Click the image to open in full size.
__________________
/Per-Anders (my first name) or P-A as my friends call me
  Reply With Quote
Old 28th April 2009, 08:54 PM   #5
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
Send a message via AIM to Peter Daniel
I didn't realize your board offers direct attachment to chassis as well, that's a nice option, if you have enough room.

As to snubbers or caps, whenever I tried them, they were always degrading sound, so I didn't even consider implementing them.

But I guess you can't beat my price of $0.20/pc?
__________________
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 28th April 2009, 09:27 PM   #6
Electrons are yellow and more is better!
diyAudio Member
 
peranders's Avatar
 
Join Date: Apr 2002
Location: Göteborg, Sweden
Blog Entries: 4
The snubbers aren't there for the sound. They reduce EMC.

Nice of you to offer boards for only 20 cents.
__________________
/Per-Anders (my first name) or P-A as my friends call me
  Reply With Quote
Old 28th April 2009, 09:30 PM   #7
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
Send a message via AIM to Peter Daniel
While they might be reducing EMC, they screw up the sonics substantially. You decide what's more important.

I'm actually tempted to offer boards for free (that means I cover shipping), subject to Forum donation only.
__________________
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 28th April 2009, 11:27 PM   #8
diyAudio Member
 
Join Date: Mar 2005
Location: Bakersfield Ca
I was under the impression without a spectrum analyzer you are just shooting in the dark with scrubbers anyway , I could be wrong my wife says I usualy am.

Bill
  Reply With Quote
Old 29th April 2009, 03:51 PM   #9
Electrons are yellow and more is better!
diyAudio Member
 
peranders's Avatar
 
Join Date: Apr 2002
Location: Göteborg, Sweden
Blog Entries: 4
You are right. It has to be an educated guess.
__________________
/Per-Anders (my first name) or P-A as my friends call me
  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
Gb: Rectifier boards cviller Group Buys 58 24th October 2010 05:52 PM
two single secondaries, two rectifier boards lm4780 kit gbolly Chip Amps 5 23rd August 2008 08:59 AM
Need some help: one vs. two rectifier boards? ebenai Chip Amps 4 25th May 2007 12:49 PM
Aleph printed circuit boards alternative xcel Pass Labs 15 21st December 2001 10:05 PM


New To Site? Need Help?

All times are GMT. The time now is 06:48 AM.


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