Mauro Penasa's INV GC/REF GC group buy. - Page 2 - 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 14th June 2005, 02:46 PM   #11
diyAudio Member
 
BrianDonegan's Avatar
 
Join Date: Dec 2004
Location: TPA HQ (The Basement)
Hi Russ-

Sign me up for a couple as well. I will try to get a BOM together from US suppliers and see what can be done about kits. More as I know it later.
__________________
Twisted Pear Audio
  Reply With Quote
Old 14th June 2005, 03:53 PM   #12
diyAudio Member
 
Join Date: Feb 2004
Location: utrecht
Default sign me up

Russ,

Thanks for your e-mail.
Sign me up for one stereo board.

I would be interested in parts as well. That is the biggest hasle over here to find a supplier that can do the lot.

Regards

E&E
  Reply With Quote
Old 14th June 2005, 04:33 PM   #13
diyAudio Member
 
Andypairo's Avatar
 
Join Date: Sep 2002
Location: near Milano , Italy
Forgot to point that I'm interested in the "Ref" board (as almost everyone it seems)

Cheers

Andrea
__________________
I don't believe in audiophile components - except when I can get them at frugal-phile(tm) prices
  Reply With Quote
Old 14th June 2005, 06:11 PM   #14
diyAudio Member
 
Join Date: Apr 2003
Location: Seattle
Ah, what the hey... Sign me up for a board as well, Russ. I guess I'll add it to my collection of unfinished projects for the time being
  Reply With Quote
Old 14th June 2005, 10:37 PM   #15
diyAudio Member
 
BrianDonegan's Avatar
 
Join Date: Dec 2004
Location: TPA HQ (The Basement)
Hey Russ-

Since we are having boards made, why not see if we can get double sided boards to emilinate the jumper wires? Would that add to the price significantly? and where do you estimate we are with the board count?
__________________
Twisted Pear Audio
  Reply With Quote
Old 14th June 2005, 10:40 PM   #16
gengis is offline gengis  United States
diyAudio Member
 
gengis's Avatar
 
Join Date: Feb 2005
Location: Midwest--IA
I will take one.
  Reply With Quote
Old 14th June 2005, 10:43 PM   #17
diyAudio Member
 
Russ White's Avatar
 
Join Date: Jan 2005
Location: Nashville, TN, USA
Send a message via Yahoo to Russ White
Brian,

I am not opposed to doing two sided boards, but I am not sure we have time to get it in for this round.

Plus this is really Mauro's design and not mine. I would kind of like to use his original work, just to have a few around.

I am not good enough at eagle (yet) to do it myself. Plus I think the board is too big for the free version which is all I have.

It seems the count is around 10 right now... maybe 12.

At this rate I will likely get the order in later this week.

Thanks for your interest in this by the way.


Russ
  Reply With Quote
Old 14th June 2005, 10:47 PM   #18
gengis is offline gengis  United States
diyAudio Member
 
gengis's Avatar
 
Join Date: Feb 2005
Location: Midwest--IA
Blue?
  Reply With Quote
Old 15th June 2005, 01:21 PM   #19
diyAudio Member
 
Join Date: Nov 2004
Location: UK, bristol
I'm tempted, but the parts list means very little to me.

If someone said "You can get every component from xyz and it will cost about xxx dollars" then it would be an easy decision. A US source (online) is just as good as UK for me, better in fact as it will be cheaper.
  Reply With Quote
Old 15th June 2005, 02:00 PM   #20
diyAudio Member
 
Russ White's Avatar
 
Join Date: Jan 2005
Location: Nashville, TN, USA
Send a message via Yahoo to Russ White
Default update

Quick update:

I only have the option of getting green boards right now. Later (if I can get a lrger quantity) I may be able to get other colors, but the first order will have to be green.

The good news is I am able to get very high quality boards specs as follows:

1.6mm FR4 boards
2oz copper
HASL finish
SilkScreen
Green color

I will start accepting payments very soon for this first batch. Keep in mind that while this is a tested/protoyped circuit that this is the first production batch of these boards from this manufacturer I will have received. They should be just fine, but there is an outside chance of manufacturing defects. I am using the Gerbers provided by Mauro.

I ordered a batch a couple weeks ago of a dozen of each of the designs but they were made locally and sent to some college friends for school projects. I did not have any parts for building one yet so I let all of those boards go. Those boards were pretty expensive. I would have had to sell them at $25 just to cover my cost, so I decided not to use that manufacturer. Also, the boards were not as good as these should be, in fact the boards were very thin. These should be quite a bit better.

Lets get a few of these built, and then based on community input evaluate the value of modifications such as dual layer.

The single layer board is a very attractive solution because it does help keep the cost very reasonable while only adding a few jumpers which are easy.

I will post the order page address soon.

Thanks,
Russ
  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_ref revC group buy (Mauro Penasa LM3886 design) schro20 Group Buys 650 18th October 2010 12:42 AM
Evolution Amplifier by Mauro Penasa Panelhead Chip Amps 14 22nd July 2010 10:56 AM
WTB: Mauro Penasa Ref C marginwalker Swap Meet 0 13th October 2007 06:28 PM
My Version of Mauro Penasa's LM3886 Stanley Drake Chip Amps 28 31st December 2006 01:41 AM
cant make it work: mauro penasa rev 1 zafira1981 Chip Amps 14 24th December 2005 03:33 AM


New To Site? Need Help?

All times are GMT. The time now is 08:39 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