Symasym PCB - Page 4 - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

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 7th December 2008, 06:19 PM   #31
black is offline black  Romania
diyAudio Member
 
Join Date: Dec 2006
Send a message via ICQ to black Send a message via AIM to black Send a message via MSN to black Send a message via Yahoo to black
nice
  Reply With Quote
Old 7th December 2008, 06:20 PM   #32
Account disabled at member's request
 
MJL21193's Avatar
 
Join Date: Mar 2007
They should be as close as possible to both the outputs and the star ground.
  Reply With Quote
Old 7th December 2008, 06:23 PM   #33
Khron is offline Khron  Romania
diyAudio Member
 
Join Date: Jul 2005
Location: Finland
Send a message via AIM to Khron Send a message via MSN to Khron Send a message via Yahoo to Khron
Well... Which choice has precedence? Outputs or star ground? Or shoudl i try to find some sort of "middle ground"? (No pun intended )
  Reply With Quote
Old 7th December 2008, 06:42 PM   #34
Account disabled at member's request
 
MJL21193's Avatar
 
Join Date: Mar 2007
The ideal place is dead centre of the board between the outputs, right on top of the star ground. Is it worth losing sleep over? Probably not.
Attached Images
File Type: png 114.png (83.1 KB, 584 views)
  Reply With Quote
Old 7th December 2008, 06:56 PM   #35
Khron is offline Khron  Romania
diyAudio Member
 
Join Date: Jul 2005
Location: Finland
Send a message via AIM to Khron Send a message via MSN to Khron Send a message via Yahoo to Khron
So can i / we declare this, the final version of the board?

Looks like i'll have some work to do between / after the holidays
Attached Images
File Type: gif symasym.gif (65.1 KB, 565 views)
  Reply With Quote
Old 7th December 2008, 06:59 PM   #36
Khron is offline Khron  Romania
diyAudio Member
 
Join Date: Jul 2005
Location: Finland
Send a message via AIM to Khron Send a message via MSN to Khron Send a message via Yahoo to Khron
I'm also attaching the schematic and board, in Eagle format, zipped, if anyone thinks they can "put them to good use"
Attached Files
File Type: zip symasym.zip (67.2 KB, 138 views)
  Reply With Quote
Old 7th December 2008, 09:16 PM   #37
lineup is offline lineup  Sweden
diyAudio Member
 
lineup's Avatar
 
Join Date: Dec 2005
Location: the north
yes. this board looks fine, Khron
we can say this is a good final board
now let some people build this with 2 output pair power transistors & post some reports
__________________
lineup
  Reply With Quote
Old 7th December 2008, 10:04 PM   #38
lineup is offline lineup  Sweden
diyAudio Member
 
lineup's Avatar
 
Join Date: Dec 2005
Location: the north
I post the schematic
from your Eagle file
Attached Images
File Type: png symasym_2008-12-08.png (33.4 KB, 624 views)
__________________
lineup
  Reply With Quote
Old 8th December 2008, 01:52 AM   #39
ReiMomo is offline ReiMomo  Puerto Rico
diyAudio Member
 
Join Date: Apr 2008
Location: Puerto Rico
ok at first I was right thats the part side
the emitter resistors are ok
here is what I was trying to say about the base resistors
I did it on bitmap.
Attached Images
File Type: gif symasym br.gif (62.5 KB, 511 views)
  Reply With Quote
Old 8th December 2008, 08:02 AM   #40
Khron is offline Khron  Romania
diyAudio Member
 
Join Date: Jul 2005
Location: Finland
Send a message via AIM to Khron Send a message via MSN to Khron Send a message via Yahoo to Khron
Aha, i kinda thought that's what you meant about the base resistors. But i would like to hear a few more opinions about this before i change the board again
  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
Troubleshooting your Symasym anatech Solid State 235 22nd September 2011 10:40 PM
FS 2* DIY Symasym boards Andypairo Swap Meet 11 1st February 2009 02:59 PM
symasym 5_3 boards traw Swap Meet 6 11th May 2007 10:41 AM


New To Site? Need Help?

All times are GMT. The time now is 05:54 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