TO-3 SYMASYM - Page 98 - 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 15th August 2014, 06:13 PM   #971
diyAudio Member
 
Join Date: Aug 2003
Location: Augsburg
Hi Rudi,

... quite happy that you managed to get the NJW0!! I can only speak for myself but for me it is ok to pay my share of the extra costs. Just post the extra costs and I will transfer the money.

Kind regards,
Michael
  Reply With Quote
Old 15th August 2014, 06:17 PM   #972
diyAudio Member
 
Join Date: Jun 2014
Hi Rudi I'm going to my bank to check the transfer list.
  Reply With Quote
Old 15th August 2014, 07:30 PM   #973
diyAudio Member
 
Rudi_Ratlos's Avatar
 
Join Date: Jun 2009
Location: Hamburg / Germany
Michael: thank you very much for your empathy.

But since this is the very last group-buy that I will do for the SYMASYM, I do not worry about the commercial outcome!

May I tell you on the other hand, how I will do the case for the "Black-Beauty-SYMASYM"?
This will be an alternative to the absolutely dull and impersonal modushop cases and will make it "your Black Beauty - SYMASYM".

Best regards - Rudi_Ratlos

P.S.: For the sake of thermal convection it will be better to shift the SYMASYM-PCB to the left side to cover both heatsinks!
Attached Images
File Type: png NJW-SYMASYM-Case.png (661.4 KB, 335 views)

Last edited by Rudi_Ratlos; 15th August 2014 at 07:35 PM.
  Reply With Quote
Old 15th August 2014, 11:44 PM   #974
diyAudio Member
 
Join Date: Nov 2003
Location: sydney
Hi Rudi, if still available ,3 sets of all components with wwide shipping, no cutting
  Reply With Quote
Old 16th August 2014, 07:26 PM   #975
alibear is offline alibear  United Kingdom
diyAudio Member
 
Join Date: Feb 2009
Location: Somerset
Hell Rudi, this is my first post on this thread and I wonder if you can give some advice. I read post 866 from vargasmongo3435 with the picture of TO3 version 3 PCB and you made this reply,
Quote:
Originally Posted by Rudi_Ratlos View Post
But, Juan, this layout is long, long time ago!

I am happy to get rid of the "loops, the deadly power and GND - embraces"!
There are none on my current layout.

Best regards - Rudi
I have obtained some Version 2 PCB's from a friend in Germany and I think that they also have ground loops. Does this mean they do not sound as good as the latest boards? also is there any way I can modify the board to iliminate any problems ? The boards themselves look really well made. I have attached picture of the boards I have.
Thank you for your help
Alan
Attached Files
File Type: pdf IMG_20140816_0002.pdf (684.6 KB, 100 views)
  Reply With Quote
Old 16th August 2014, 07:29 PM   #976
alibear is offline alibear  United Kingdom
diyAudio Member
 
Join Date: Feb 2009
Location: Somerset
Oops, above post should have started with Hello Rudi
My apologies
Alan
  Reply With Quote
Old 16th August 2014, 08:58 PM   #977
rephil is offline rephil  Europe
diyAudio Member
 
Join Date: Nov 2004
Location: In Belgium at the French border.
Quote:
Originally Posted by alibear View Post
Hell Rudi, this is my first post on this thread and I wonder if you can give some advice. I read post 866 from vargasmongo3435 with the picture of TO3 version 3 PCB and you made this reply,


I have obtained some Version 2 PCB's from a friend in Germany and I think that they also have ground loops. Does this mean they do not sound as good as the latest boards? also is there any way I can modify the board to iliminate any problems ? The boards themselves look really well made. I have attached picture of the boards I have.
Thank you for your help
Alan
Hi Alan,

I have built 2 PCBs from Rudi that have this problem of ground loops, but it is a very great sounding amp . If you don't know about that ground loop problem, you don't see it ... Don't worry and go ahead : it is time to populate the PCBs and prepare yourself to get a great sounding amp. Mine was really very great sounding.

Best regards

rephil
  Reply With Quote
Old 17th August 2014, 10:40 AM   #978
diyAudio Member
 
Rudi_Ratlos's Avatar
 
Join Date: Jun 2009
Location: Hamburg / Germany
Alan, to do the GND-scheme like I did in the current offer, to not "embrace" SignalGND by PowerGND, is a pure theoretical recommendation.

This is at least my listening impression, since I did not hear any audible difference between your TO3-SYMASYM PCB and the currently offered version.

I did the current design to get rid of any "theoretical objections".

As my friend REPHIL told you: go and build your SYMASYM.
You will be absolutely excited when you hear it playing.

Best regards - Rudi_Ratlos
  Reply With Quote
Old 17th August 2014, 07:12 PM   #979
alibear is offline alibear  United Kingdom
diyAudio Member
 
Join Date: Feb 2009
Location: Somerset
Hi Rudi & Rephil, thank you for your replies, I will do as you sugest and build Symasym. May I ask another question, Is it OK to use 3.3pf for C9 and 220pf for C10 C11 as I have these values in silver mica already. I am using MJ21195 / 96 output devices.
Thanks
Alan
  Reply With Quote
Old 18th August 2014, 06:44 AM   #980
diyAudio Member
 
watchtmouse's Avatar
 
Join Date: Feb 2013
Location: NRW
Default payed for spo boards

Hi Rudi,

I have done a paypal transfer, for the two additional SPO boards.

thanks for making these available.

Bert
  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
Symasym PCB Khron Solid State 58 17th May 2012 08:18 AM
Troubleshooting your Symasym anatech Solid State 235 22nd September 2011 10:40 PM
Help with Symasym jandr49 Solid State 6 18th September 2011 01:13 PM
Symasym 5.3 jandr49 Solid State 2 16th April 2010 04:03 PM


New To Site? Need Help?

All times are GMT. The time now is 03:33 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