Aura Evolution VA100 Clean up & upgrade - Page 3 - 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 20th November 2008, 07:45 PM   #21
RCruz is offline RCruz  Switzerland
diyAudio Member
 
RCruz's Avatar
 
Join Date: Sep 2006
Location: Wallis
Blog Entries: 1
Go for the bigger smoothers.. RS has got BHC online. http://pt.rs-online.com/web/search/s...tribute=63V%20(dc)#breadCrumb


LM4562 are really good on preamps.

Ricardo
__________________
RC
  Reply With Quote
Old 20th November 2008, 08:19 PM   #22
diyAudio Member
 
Malefoda's Avatar
 
Join Date: Jun 2006
Send a message via MSN to Malefoda
Yep but not in the correct size to be snapped in
Only the ALC10 do. If can go for bigger but remote & with wires to link it to pcb I'll go for Panasonic TSHA wich are cheap ! Or BC Vishay wich are bigger but more expensive... or... will se.
I'll go for Rubycon ZA to replace the Elgen 220/35, caps on the LM4562 supply lines.

About the rectifier, any gain to find here?
__________________
QED T260, Thorens TD-318, Marantz CD-43, TK2050, JBL 4313B & MJK's OB: music!
  Reply With Quote
Old 20th November 2008, 10:05 PM   #23
RCruz is offline RCruz  Switzerland
diyAudio Member
 
RCruz's Avatar
 
Join Date: Sep 2006
Location: Wallis
Blog Entries: 1
Quote:
Originally posted by Malefoda


About the rectifier, any gain to find here?
Use HEXFREDS.... much lower noise provides higher definition.
__________________
RC
  Reply With Quote
Old 23rd November 2008, 04:58 PM   #24
 is offline  Switzerland
diyAudio Member
 
Join Date: Apr 2008
Default dead va100 on my desk...

hi

i was given a dead va100 mk I in perfect condition - it doesn't work, but there are no signs of damage visible on the PCB. fuses look OK.

fault finding/trouble shooting would be a lot easier if i had a schematic of the circuit...

any hints where i should start digging?

thx for help!

best,
  Reply With Quote
Old 23rd November 2008, 06:44 PM   #25
diyAudio Member
 
Malefoda's Avatar
 
Join Date: Jun 2006
Send a message via MSN to Malefoda
I don't have it also...
Mine made short cuts between PCb solders side and heatsink. How does your look like?
__________________
QED T260, Thorens TD-318, Marantz CD-43, TK2050, JBL 4313B & MJK's OB: music!
  Reply With Quote
Old 24th November 2008, 02:11 AM   #26
 is offline  Switzerland
diyAudio Member
 
Join Date: Apr 2008
i have only visually checked the PCB from above after taking the lid off. did the shorts occur directly on the (black anodized) heat sink or to the aluminum L-sheet attached to the heatsink and the FETs?

anything to watch out particularly when taking the PCB out?
  Reply With Quote
Old 24th November 2008, 02:11 AM   #27
 is offline  Switzerland
diyAudio Member
 
Join Date: Apr 2008
i have only visually checked the PCB from above after taking the lid off. did the shorts occur directly on the (black anodized) heat sink or to the aluminum L-sheet attached to the heatsink and the FETs?

anything to watch out for particularly when taking the PCB out?
  Reply With Quote
Old 4th December 2008, 08:55 PM   #28
diyAudio Member
 
Malefoda's Avatar
 
Join Date: Jun 2006
Send a message via MSN to Malefoda
That's it, the L shaped aluminium under frame. And no nothing special, the whole chassis is quite minimal and bow and distorts so much!
Mine is now closed for years, useless as I don't need it but fixed. That was just that careless design and fitting in this fragile box.
About the whole Aura system the tonal balance is quite good but I find (beside my personal system on the Quad 11L) that it's with no depth att al and no space nor air between sound sources. It's a rough picture where my system is a real stage with other flaws. A bit less dynamic also. At least it's normal as the main stuff is more serious and more fresh
No way to use it as main setup for me, I guess we all can't go forward!
__________________
QED T260, Thorens TD-318, Marantz CD-43, TK2050, JBL 4313B & MJK's OB: music!
  Reply With Quote
Old 8th December 2008, 01:37 PM   #29
diyAudio Member
 
vitalstates's Avatar
 
Join Date: Jan 2006
Location: uk
apologies for going slightly OT but can anybody point me towards a va-40 schematic, mine has started popping fuses.

thanks

Ed
  Reply With Quote
Old 10th January 2009, 03:50 PM   #30
diyAudio Member
 
Malefoda's Avatar
 
Join Date: Jun 2006
Send a message via MSN to Malefoda
Nothing found still...
But B&W DM4 speakers!

I've been said it's a perfect match...
__________________
QED T260, Thorens TD-318, Marantz CD-43, TK2050, JBL 4313B & MJK's OB: music!
  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
Aura Va100 Evoluton Ii ANALOG GUY Solid State 31 25th February 2012 02:46 PM
evolution algorithm Jamh Everything Else 0 8th June 2009 06:04 PM
Aura CDP Clean up & upgrade Malefoda Digital Source 39 5th April 2009 10:40 AM
Evolution MK-7 midi keyboard em2006 Instruments and Amps 1 12th September 2008 09:55 PM
Evolution board AD1955 fantomas Digital Source 1 30th September 2005 11:03 PM


New To Site? Need Help?

All times are GMT. The time now is 06:47 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