Balancing card (2x unbal-to-bal & 2x bal-to-unbal) R vs G graph added

[audiox]

Audiox, can you please indicate the output caps value?

http://hyperphysics.phy-astr.gsu.edu/hbase/electric/filcap.html

 

[Kimster]

Hi!
I know its an old thread, but I wonder if anyone has gerber files for this projekt?

/Kimster

 

[taczowbes]

Hi,

Would OP happen to remember with what power supply they achieved the measurements at the top of this thread?

Wondering if anyone has built this and has thoughts about what sort of power supply I should seek out.

Thanks.

 

[Dimon]

Вот кастомная версия этой печатной платы с восемью каналами от небалансного до балансного.
Надеюсь, Audiox, ты не против, что я настроил твою печатную плату!

https://www.dropbox.com/s/wjrwomyzt69f73i/300dpi8chbalancingcard.tif

Hello, the link is dead, can you please update it?

 

[chrispbass]

I made an un-balanced to balanced make-up gain stage for a project today, using a bit of vero board and components out of the parts bin based on the schematics from Audiox. Thank you Audiox.

If useful to anyone, here are the original documents re-uploaded.

One thing I did notice was with regards to the gain calculations shown in the bal_card_block_diagram doc. I think it should be 20K as the denominator instead of 10K for the un-balanced to balanced (channel 3/4). Perhaps someone can confirm that please based on the schematic doc.