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Re: For Jon Risch/Bobwire WMS: Please advise which better op-amps for servo regulators in DAC

213.122.56.200

Hi again Bob

I matched up the 0.1uF 14 caps to identical value within about 100pf of each other. I chose them from over 100 of the same type - all of the passive components I used are absolutely matched to death LOL... Perhaps thats partly why I have such a great sound already.. still want more if there's more to be had!

Yes I realised that the voltages of the 1541's supplies are -5 +5 and -15V. The -15 line measures at -14.75 so I guess 16V will be okay, but I am a great believer in headroom and its almost touching the ceiling

"Also, there should be filter networks on B+ 1 and B+2. Maybe 5 ohms and a larger cap"

How big a cap?

BTW The regulator IC2 is an LM317AT (2% version of LM317T)

I have OPA627AP opamps here, but have read cautions from John Risch on here about using this amp properly.. Mr Risch please comment when you read this, thanks matey! =)

My brother had somewhat negative opinions about the use of the older 1541 chip - but now he's in the process of collecting parts to build one himself... now that was a nice little u-turn hehehe!
!!! The TDA1541A rules 16 bit CD !!! Period.

Thanks lads for your valued ideas and suggestions

Creation X

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  • Re: For Jon Risch/Bobwire WMS: Please advise which better op-amps for servo regulators in DAC - Creation X 19:39:34 06/25/01 (0)
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