Go Back   Home > Forums > > >

Vendor's Bazaar Commercial Vendors large & small hawking their wares

Output transformers for DACs
Output transformers for DACs
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
Old 6th July 2020, 10:35 AM   #441
bisesik is offline bisesik  Kazakhstan
Output transformers for DACs
diyAudio Member
 
Join Date: Sep 2008
Location: Kazakhstan, Almaty
Output transformers for DACs
Quote:
Originally Posted by angcl View Post
any update ?
Quote:
Originally Posted by angcl View Post
I thinks I just want the trans, no need the PCB to save cost , this is for twisted Twisted Pear Audio ,Buffalo-IIIse .
Have PMed to you.
__________________
Ivan
  Reply With Quote
Old 7th July 2020, 06:38 AM   #442
yunyun is offline yunyun
diyAudio Member
 
Join Date: Jun 2019
Quote:
Originally Posted by angcl View Post
how to buy this board ? I am keen .

GitHub - iancanada/DocumentDownload: Download documents of Ian's products
  Reply With Quote
Old 7th July 2020, 07:10 AM   #443
yunyun is offline yunyun
diyAudio Member
 
Join Date: Jun 2019
bisesik,

For the newly designed PCB, can you draw a picture similar to the one below for beginners?

messageImage_1594105018347.jpg
  Reply With Quote
Old 8th July 2020, 04:08 AM   #444
bisesik is offline bisesik  Kazakhstan
Output transformers for DACs
diyAudio Member
 
Join Date: Sep 2008
Location: Kazakhstan, Almaty
Output transformers for DACs
Quote:
Originally Posted by yunyun View Post
bisesik,

For the newly designed PCB, can you draw a picture similar to the one below for beginners?

Attachment 858685

Exact the same connection
__________________
Ivan
  Reply With Quote
Old 8th July 2020, 04:11 AM   #445
yunyun is offline yunyun
diyAudio Member
 
Join Date: Jun 2019
But there are more pin for beginners...


Can the XLR and SE outputs of the PCB use terminals? Like IVY III BALANCED LINESTAGE.

IvyIII_whole.jpg

Last edited by yunyun; 8th July 2020 at 04:16 AM.
  Reply With Quote
Old 8th July 2020, 08:29 AM   #446
bisesik is offline bisesik  Kazakhstan
Output transformers for DACs
diyAudio Member
 
Join Date: Sep 2008
Location: Kazakhstan, Almaty
Output transformers for DACs
Rows in 2x5 headers are connected in parallel (just for better header fixation on the board). All the other jumpers are pre-installed for correct functioning.
Regarding terminals. I suppose it is possible to use terminals instead of XLRs\RCAs using existing thruhole pads, somehow this way:

Buffalo_terminals.jpg

term_correction.jpg

based on that terminals:
Blocked

But definitely it is possible to correct PCB for regular terminals at require in the next orders (will take extra time of course for manufacturing).
__________________
Ivan
  Reply With Quote
Old 4th August 2020, 05:35 PM   #447
chromenuts is offline chromenuts  United States
diyAudio Member
 
Join Date: Dec 2008
Location: Connecticut, USA
Output transformers for DACs
I am working on a TDA1541A DAC based on Ryanís D3 boards.

The first version is a single D3/TDA1541A. I will simply be trying it with a iv resistor to see how it works with my system. However, Iíve already put things in motion to try dual/mono TDA1541A in the future.

Ryan already purchased a set of your transformers for use with his boards and gave a good review.

If I want/need a pair of your iv transformers...do they have to be wound specifically for either a single TDA1541A or the dual/mono?...or is it possible to use the same transformers with either arrangement?

Also, can you post the dimensions of your current PCB for the transformers so I can make sure I have space allotted in my case?
  Reply With Quote
Old 4th August 2020, 05:47 PM   #448
Myint67 is online now Myint67  Singapore
diyAudio Member
 
Join Date: Dec 2013
Location: Singapore
Default D3

Hi ,
I also looking for IV transformer(1:4 )for dual dual mono design using D3 TDA/1541 A.
pls check attach.
Attached Images
File Type: jpeg A88634FE-41EA-4E21-BC7D-44E1BA9323B6.jpeg (105.1 KB, 477 views)
  Reply With Quote
Old 5th August 2020, 07:01 PM   #449
bisesik is offline bisesik  Kazakhstan
Output transformers for DACs
diyAudio Member
 
Join Date: Sep 2008
Location: Kazakhstan, Almaty
Output transformers for DACs
chromenuts, Myint67
There is a problem with TDA1541 in original SE connection mode is caused by the DC-offset presented at the output. I can make suitable transformer in general, but the special type of the core is needed then, which I haven't now (and do not want to order a batch due to low demand compared to other non-DC-offsetted DACs). There is another way to solve the offset, to make the additional compensation coil. First, it is more expensive to manufacture, but it is more complicated for the end user in addition as the separate power source will be needed.
Taking into account all aboved, I prefer to avoid DC-offsetted DACs. But the differential mode of 1541' connection allows to use my transformers in a regular way - all you need is just to use center tap at GND (two primary coils) - two DC-offsets should be selfcompensated then and cores will not be oversaturated.

Lets wait for Ryan's report (transformers are still on the way to him)...
__________________
Ivan
  Reply With Quote
Old 6th August 2020, 11:52 AM   #450
bisesik is offline bisesik  Kazakhstan
Output transformers for DACs
diyAudio Member
 
Join Date: Sep 2008
Location: Kazakhstan, Almaty
Output transformers for DACs
chrome nuts, Myint 67...
Thanks to your posts, I have renewed my "investigation" on the TDA1541A (which is inside my Marantz CD65 CDP), which was paused during the last 2 years many times in attempts to find the needed approach of winding. As a result just today I have found the way to make transformers, suitable for TDA1541 in SE mode without need of DC-compensation.
FR 20-20k: -0.3 / -0.8 dB (1.8Vp-p)
__________________
Ivan

Last edited by bisesik; 6th August 2020 at 12:04 PM.
  Reply With Quote

Reply


Output transformers for DACsHide this!Advertise here!
Thread Tools

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
PC based I2S Output for compatible DACs Vortex Digital Line Level 1 5th May 2018 07:37 PM
Zapfilter2 and current-output dacs Glenn2 Digital Line Level 5 31st October 2016 07:36 AM
D2A aragon dac with blowed output stage after the dacs... inertial Solid State 0 8th July 2013 04:04 PM
Differential output DACs, can I use only one output. oon_the_kid Digital Line Level 14 4th July 2011 02:09 AM
any info. anywhere on output stages for dacs? lt cdr data Digital Source 3 21st May 2005 04:18 AM


New To Site? Need Help?

All times are GMT. The time now is 05:52 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Copyright ©1999-2021 diyAudio
Wiki