have anyone build the sigma 25 linear psu b4?
i notice for the ac side there's no grounding. so the device does not need grounding?
http://www.amb.org/audio/sigma25/

so is it safe or usable as it is?
or do i have to make it into dual rail?

i just need a linear psu for my audinst hud mx 1. So i m not sure if i need single or double. any advise? Need it to replace the stock wallwart

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Added on April 22, 2011, 12:48 ami have also read that linear psu seems to be very inefficient, is that true?

This post has been edited by islubio: Apr 22 2011, 12:48 AM

ic so it all depends whether i wanna use 3 or 2 pins.
well i m from singapore so i will take a look at the shops here.
i don think i need 24vdc

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Added on April 22, 2011, 1:45 amthe dac takes 12-15V

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Added on April 22, 2011, 1:57 ambtw have anyone tried a ADuM4160 dongle??

This post has been edited by islubio: Apr 22 2011, 01:57 AM