OLD THREAD DAC End by Andrea Ciuffoli - Page 60

quanghao · 8th February 2010, 09:42 AM

Quote:

Originally Posted by le´flu

Hi Quang Hao,
did you find any mistakes in the Printing on the PCB?
Are there wrong values or can i just orientate at the
Parts printed on?

Greetings Ulf

no! it is not wrong! if you se it, you can show me please!
thank

apelizzo · 11:43 AM

Quote:

Originally Posted by adamus

I'm using the jj, only £10.

I'll be using obbligatos in the critical film positions. I may also look at tube rectification, a bit of air wiring will be needed. I'll try the solid state at first of course.

Adam,
Please give me your opinion regarding all these polyester caps in parallel with Oscon and near the AD1865 and CS8141. I would prefer MKP instead MKS. I've got some axial polystyrene 33nF to mount vertically. I bought some Vishay BC MKS but I don't feel confident to solder them. I excluded any Wima.
Also those cheap ceramic capacitor seam to work very well in some positions.

What do you recommend?

adamus · 8th February 2010, 11:48 AM

mkp woul be good, but i would be suprised if you hear the difference. I used mks and would again.

erwincantona · 8th February 2010, 12:15 PM

Quote:

Originally Posted by quanghao

hi Patrick! I alway say that: about 3-4 weeds you will get it! some PCb arrive early!
It is that you! see in the image. Im sorry I post here!

Quanghao... Can you show mine? I'm afraid i give you wrong address
Can you scan it like Patrick for me?
Im in Indonesia....

tassosk · 8th February 2010, 02:10 PM

My boards arrived today. Good work,
Thanks for your effort.

MarkLai · 9th February 2010, 02:39 AM

Quanghao,
Both pcbs of EUVL and mind are received.
Thanks a lot for organise the GB.
Mark

quanghao · 9th February 2010, 05:09 AM

Quote:

Originally Posted by MarkLai

Quanghao,
Both pcbs of EUVL and mind are received.
Thanks a lot for organise the GB.
Mark

Thank you!

rolotube · 9th February 2010, 09:33 AM

quanghao, my boards arrived today in good condition. They look great. Many thanks again for arranging to have them made & sending to group buy participants.

Re power transformers, in a previous post andrea suggested the following: LS70-1 (2x15V, 1x12V) & R80-55 (1x250V, 2x9V).

apelizzo, does the Murata DA101C replace, or is it an alternative for the Newava S22083?

audiodesign · 9th February 2010, 09:53 AM

Any digital input transformer could be used in this project so also the Murata DA101C and Newava S22083 probably are good.

adamus · 9th February 2010, 10:25 AM

quick question regarding the inductors (120uf) From farnell i can only find a choke with self resonant frequency of 10khz.

could i jumper the choke, the RC filter remains.

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8th February 2010, 11:48 AM	#593
adamus diyAudio Member Join Date: Apr 2008	mkp woul be good, but i would be suprised if you hear the difference. I used mks and would again.

8th February 2010, 02:10 PM	#595
tassosk diyAudio Member Join Date: Sep 2008	My boards arrived today. Good work, Thanks for your effort.

9th February 2010, 02:39 AM	#596
MarkLai diyAudio Member Join Date: Oct 2007	Quanghao, Both pcbs of EUVL and mind are received. Thanks a lot for organise the GB. Mark

9th February 2010, 09:33 AM	#598
rolotube diyAudio Member Join Date: Aug 2009	quanghao, my boards arrived today in good condition. They look great. Many thanks again for arranging to have them made & sending to group buy participants. Re power transformers, in a previous post andrea suggested the following: LS70-1 (2x15V, 1x12V) & R80-55 (1x250V, 2x9V). apelizzo, does the Murata DA101C replace, or is it an alternative for the Newava S22083?

9th February 2010, 09:53 AM	#599
audiodesign diyAudio Member Join Date: Sep 2005	Any digital input transformer could be used in this project so also the Murata DA101C and Newava S22083 probably are good.

9th February 2010, 10:25 AM	#600
adamus diyAudio Member Join Date: Apr 2008	quick question regarding the inductors (120uf) From farnell i can only find a choke with self resonant frequency of 10khz. could i jumper the choke, the RC filter remains.