Hello,
I am actually studying/ learning how studio mic preamps works, I need two or three for recording acoustic guitars. I will try to do a transformerless one to begin (whith That1510 ,that1646).
I would like to know what is the best way to create a PSU with 15/16 VDC and 48 VDC (phantom power) outputs . I ve seen a lot of schematics but I can't figure wich is the best and quieter one.
Thanks
With enough filtering, anything is quiet enough. These days it's normal to use off-the-shelf switching power supplies.
Something like that seem to be the best :
http://www.fabmodules.com/shop/index.php?route=product/product&path=59_70&product_id=81 (http://www.fabmodules.com/shop/index.php?route=product/product&path=59_70&product_id=81)
I am wandering how much the quality of the transformer matter?
Quote from: nonoxxx on September 07, 2018, 05:42:22 AM
I am wandering how much the quality of the transformer matter?
It doesn't. In fact, a cheap EI transformer is often a good choice because it is likely to have smaller primary-to-secondary capacitance, meaning less hash leaking from the wall into the secopndary.