Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Solid State Talk all about solid state amplification.

diyAB Amp - The "Honey Badger"
diyAB Amp - The "Honey Badger"
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 4th May 2012, 07:15 PM   #671
Woody1911a1 is offline Woody1911a1  United States
diyAudio Member
 
Join Date: Nov 2010
Location: Marblehead Ma
Quote:
Originally Posted by Variac View Post
The boards are now available from the EU store! For the time being they must be ordered from the EU store only. The shipping is quite reasonable.

however we also seem to have to pay your vat surcharge along with extra shipping which adds an extra $10 over what we'd be paying here .

are the usa boards lost for good ?

Woody
  Reply With Quote
Old 4th May 2012, 07:25 PM   #672
Variac is offline Variac  Costa Rica
diyAudio Editor
 
Variac's Avatar
 
Join Date: Dec 2001
Location: San Francisco, USA San Josť, Costa Rica
diyAB Amp - The "Honey Badger"
The missing USA boards (18 pr.) were sent to the EU store. You can save money by waiting, but we only ordered 50 pairs to start with worldwide to reduce risk because this is the first order. We won't have any in the US store until the next order, which should arrive in 2 months if the boards are selling well. The VAT surcharge is already reflected in the price.

Very sorry about this, but somehow, this whole project has been difficult. Won't even talk about having to mod the mounting hole locations without ostrippers original files!

Mark
__________________
"The geek shall inherit the earth"
2017 Burning Amp is November 12 in S.F. Thread here on diyAudio:
http://www.diyaudio.com/forums/clubs...francisco.html

Last edited by Variac; 4th May 2012 at 08:13 PM.
  Reply With Quote
Old 4th May 2012, 08:08 PM   #673
Woody1911a1 is offline Woody1911a1  United States
diyAudio Member
 
Join Date: Nov 2010
Location: Marblehead Ma
no problem Mark . i didn't know that you'd found them . thought they might still be expected . no biggie . i ordered a set from the euro store and i'll grab a few extra when they're stocked here .

appreciate all your efforts

cheers Woody
  Reply With Quote
Old 4th May 2012, 09:05 PM   #674
OnAudio is offline OnAudio
diyAudio Member
 
Join Date: Oct 2011
I offer 25 SYMEF boards as donation to diyaudio for your US store. 1 day shipping to store

Last edited by OnAudio; 4th May 2012 at 09:08 PM.
  Reply With Quote
Old 4th May 2012, 09:26 PM   #675
OnAudio is offline OnAudio
diyAudio Member
 
Join Date: Oct 2011
If you accept this offer, some things may happen

1. I cease availability from my site to the USA so long as you have boards in store

2. Mark up price for USA

etc

PM me
  Reply With Quote
Old 4th May 2012, 10:17 PM   #676
OnAudio is offline OnAudio
diyAudio Member
 
Join Date: Oct 2011
Packed and ready for shipping address
Attached Images
File Type: jpg SYMEF.jpg (168.7 KB, 811 views)
  Reply With Quote
Old 5th May 2012, 12:55 AM   #677
danielwritesbac is offline danielwritesbac  United States
diyAudio Member
 
danielwritesbac's Avatar
 
Join Date: Nov 2007
I assume that this (attached) is the current schematic?
Attached Images
File Type: gif DIYA_classAB_schematic.gif (51.0 KB, 28714 views)
__________________
DIY Models & AppsClipNipperLM1875TDA7293Powerful Parallel TDA7293 kit ♦ My post has opinion.

Last edited by danielwritesbac; 5th May 2012 at 01:00 AM.
  Reply With Quote
Old 5th May 2012, 02:18 AM   #678
JojoD818 is offline JojoD818  Philippines
diyAudio Moderator
 
JojoD818's Avatar
 
Join Date: Mar 2003
Location: searching...
diyAB Amp - The "Honey Badger"
Hi Daniel,

Yup that's the one.
  Reply With Quote
Old 5th May 2012, 07:13 AM   #679
danielwritesbac is offline danielwritesbac  United States
diyAudio Member
 
danielwritesbac's Avatar
 
Join Date: Nov 2007
Default Discontinued parts?

The original was dark gray background with dark red print--not readable on some printers), although you'll need some legal size (long) paper and print to fit. There was nothing I could do to make it legible at "birds eye view" (see all at once) on a computer screen, due to the large size schematic.

While looking that over, I spotted a few things:
There was a glitch in the original and Q12, Q10 labels needed repaired. I think I did it right, since the original was mostly readable, but please check.

D6, D7: Led's vary vastly, so the BOM needs a Fairchild model number listed. This enables the builder to check a datasheet to learn the desirable voltage curve and knee.

Parts availability challenges since July 2011:
KSC1845 and KSA992: That is not specific. I hope it means KSC1845F and KSA992F.

2SC3503C is discontinued. KSC3503C is discontinued. KSC3503D is not discontinued but I don't know if it is okay to substitute, and I don't know what other substitutes there may be for these low availability types.

KSA1381C is discontinued. KSA1381E is not discontinued, but I don't know if it is okay to substitute, and I don't know what other substitutes there may be for these low availability types.

SC3503 and SA1381 are a pair and HFE match is currently unavailable, but I don't know if that factor is important.

P.S.
Although the schematic specifies some discontinued versions of parts, the rather beautiful board is not affected since it has numbered references. The only thing about this large project suited for beginners is that the nice board turns complexity into simple soldering. Good job!
Attached Images
File Type: jpg HoneyBadger.jpg (96.5 KB, 28067 views)
__________________
DIY Models & AppsClipNipperLM1875TDA7293Powerful Parallel TDA7293 kit ♦ My post has opinion.

Last edited by danielwritesbac; 5th May 2012 at 07:22 AM.
  Reply With Quote
Old 5th May 2012, 09:23 AM   #680
JojoD818 is offline JojoD818  Philippines
diyAudio Moderator
 
JojoD818's Avatar
 
Join Date: Mar 2003
Location: searching...
diyAB Amp - The "Honey Badger"
Quote:
Originally Posted by danielwritesbac View Post
The original was dark gray background with dark red print--not readable on some printers), although you'll need some legal size (long) paper and print to fit. There was nothing I could do to make it legible at "birds eye view" (see all at once) on a computer screen, due to the large size schematic.

While looking that over, I spotted a few things:
There was a glitch in the original and Q12, Q10 labels needed repaired. I think I did it right, since the original was mostly readable, but please check.

D6, D7: Led's vary vastly, so the BOM needs a Fairchild model number listed. This enables the builder to check a datasheet to learn the desirable voltage curve and knee.

Parts availability challenges since July 2011:
KSC1845 and KSA992: That is not specific. I hope it means KSC1845F and KSA992F.

2SC3503C is discontinued. KSC3503C is discontinued. KSC3503D is not discontinued but I don't know if it is okay to substitute, and I don't know what other substitutes there may be for these low availability types.

KSA1381C is discontinued. KSA1381E is not discontinued, but I don't know if it is okay to substitute, and I don't know what other substitutes there may be for these low availability types.

SC3503 and SA1381 are a pair and HFE match is currently unavailable, but I don't know if that factor is important.

P.S.
Although the schematic specifies some discontinued versions of parts, the rather beautiful board is not affected since it has numbered references. The only thing about this large project suited for beginners is that the nice board turns complexity into simple soldering. Good job!

Hi,

That is the original schematic, no more dark grey since the boards are already out.

Q10 and Q12 seems to be right where they should be. I have built the official diyAudio Honey Badger prototype using the same files to test the validity of the board. If there is something wrong with the schematic/board label please feel free to point where the glitch is.

D6 and D7 LEDs are just there for indicating V+ and V- are up and running in the board, I believe there is no direct effect on the sonics of the amp and so any Red/Blue LED available at your parts bin or nearest parts shop should be ok.

As for the discontinued parts, most are still available elsewhere in the world, but in the spirit of making this "continent" proof, the official Build Guide shall have a list of potential alternatives which should be, again, available at your local parts shop or favorite online vendor.

  Reply With Quote

Reply


diyAB Amp - The "Honey Badger"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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
diyAB Amp The "Honey Badger" build thread Variac Solid State 2794 17th July 2017 06:25 PM
Honey, I smoked the Weller 8200 jackinnj Equipment & Tools 5 25th April 2011 06:07 AM
Badger Badger Badger..... Mushroom !! 5th element Everything Else 15 20th September 2003 03:16 PM


New To Site? Need Help?

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


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio
Wiki