DAC-ASH (dac-end 2 up date)

[hotzman]

Hi,
How can I post my photos?
Thank you!

 

[quanghao]

Hi hotzman!
it is nice!
can you show some image???
thanks

You see in this image

 

[hotzman]

Hi,
Pictures with my DAC END 2! No final case!
I used hi-end components...AD1865N-K, RA resistors, AudioNote/Shinkoh tantalum resistors(I/V), Kiwame power resistors, Black Gate, Jensen, Nichicon, Wima Black Box, OS-CON, Solen, russian teflon capacitors, MUR ultra fast rectifiers(12-25ns), Electro-Harmonix tubes 6H30Pi(pair)...and more! On DAC END2 PCB, across each MUR rectifiers I used 0,1uF/100V red Wima.
I say again...best sound!!!
Thank you!

 

[quanghao]

Now I have some components for DAC-End
CCF50
Vishay Dale
Metal Film Resistors, Industrial, ± 1 % and ± 5 %
http://www.vishay.com/docs/31014/ccf50.pdf

 

[lucylu]

Hello That looks great well done ,I plan to build mine in the winter months and use quality parts like you have,thanks for photo s regards john

 

[quanghao]

Hi,
I say again...best sound!!!
Thank you!

Congratulations!
You have investment components are very expensive and 2nd and you have succeeded.
I also like to Thank you!
Quanghao

 

[tube_man88]

Hi Hotzman,

What is the secondary voltage for the R-core Transformer and where did you buy it ?

 

[quanghao]

Hi all!
Now i have some coment for PCB DAC-ash
CCF50
Vishay Dale
Metal Film Resistors, Industrial, ± 1 % and ± 5 %
http://www.vishay.com/docs/31014/ccf50.pdf
All resistor for the DAC
no 200R Cadoc
price: 10$ + 5$ shiping an free paypal!
Thanks!
Quanghao
My pay pal: quanghao168@yahoo.com.vn

 

[hotzman]

Hi Hotzman,

What is the secondary voltage for the R-core Transformer and where did you buy it ?

Hi!
DIYCLUB

R80-36 !

 

[Pointed]

Now I have some components for DAC-End
CCF50
Vishay Dale
Metal Film Resistors, Industrial, ± 1 % and ± 5 %
http://www.vishay.com/docs/31014/ccf50.pdf

Thanks QuangHao for your assist, yesterday I got DAC's resistors pack. It's save a lot of my time

 

[parodielin]

Yes! 33R use
VISHAY / DALE RN65D SERIE : 75R// 49R

Hey, the RN65D power handling is 1/2 W, not 2W. Is this a typo in the BOM?

So it should be 33 ohm 1/2 W. Please verify. Thx!

 

[phrarod]

quanghao -- If there are corrections to the DAC ASH can you please report the corrected BOM so what happened in the old thread doesn't happen again in this one? Thanks.

 

[parodielin]

Capacitors

Dac End Ash calls for the following capacitors:

Capacitor Vishay/BC (What types of capacitors?)
0.1uF/12V x 6 C26,C28,C30,C32,C34,C36
0.01uF x 2 C38,C39 (at digital input), C40,C41
68nF/63V x 1 C37

Sanyo os-con - electrolytic capacitors:
47uF/10-16V x 6 C24,C27,C29,C31,C33,C35

Electrolytic Capacitors / Rubycon ZLH or Panasonic FC
220uf/16V x 6 C3,C7,C11,C15,C19,C23
2200uF-4700uF/25V x 6 C1,C5,C10,C13,C17,C21

Capacitor Illinois Cap & Wima, etc... (What types of capacitors?)
0.1uF/25V x 12 C2,C,C6,C10,C14,C18,C22,,C4,C8,C12,C16,C20,C24

There is a typo in the "Illinois Cap.." What types of capacitors are for Vishay/BC and Illinois & Wima?

 

[phrarod]

Film caps. Use polypropylene.

 

[parodielin]

Film caps. Use polypropylene.

Thanks. As far as voltage's concern, if I cannot find 12V, I can use, say, 15V, right?

 

[phrarod]

That should be fine. Pay attention to the "lead spacing" so it will fit onto the board holes.

 

[quanghao]

Hey, the RN65D power handling is 1/2 W, not 2W. Is this a typo in the BOM?

So it should be 33 ohm 1/2 W. Please verify. Thx!

Hi!
I wanted to excessive safety!
actually consume 66mA with a voltage difference 6-7V.
Resistors 33R, such capacity needs: 0066 x 0066 x 33R ~ ~ 0.144What (min)
than 1W had enough!
Thanks

 

[quanghao]

Thanks. As far as voltage's concern, if I cannot find 12V, I can use, say, 15V, right?

yes! you can use diode 6-15V, no problem!

 

[quanghao]

(What types of capacitors?)[/B]
0.1uF/25V x 12 C2,C,C6,C10,C14,C18,C22,,C4,C8,C12,C16,C20,C24

There is a typo in the "Illinois Cap.." What types of capacitors are for Vishay/BC and Illinois & Wima?

Illinois Capacitor, JJ and Mallory

Link: Capacitors
ILLINOIS CAPACITOR|108CKE025M|CAPACITOR ALUM ELECT 1000UF, 25V | Newark.com
Illinois Capacitor, Inc. 104MSR102K, Capacitors

http://www.illinoiscapacitor.com/

 

[quanghao]

quanghao -- If there are corrections to the DAC ASH can you please report the corrected BOM so what happened in the old thread doesn't happen again in this one? Thanks.

Hi! The DAC board is not wrong
Only In the I/V board, have one wrong. Zenner diot value 1n4142 !
it correct Diode Zenner
1n4742 or use zener diode 6- 15V. Thats ok! May be not use it!