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DAC-ASH (dac-end 2 up date)

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#22
Strosek,

Would you mind sharing your BOM with links to suggested components (if it's not too much trouble)? 😀

Strosek said:
Quanghao, the circuit for SSHV posted above lists for D5 & D6 - 1N4142A but the BOM (on page 179 of the original thread) says 1n4172?

I suspect the part we want here is 1N4742 or 1N4742A a 1W 12V Zener Diode....

Is this correct and if it is could you please make the corrections to the circuit so others don't have a problem.

Thanks!
Click to expand...
 
#23
parodielin said:
Strosek,

Would you mind sharing your BOM with links to suggested components (if it's not too much trouble)? 😀
Click to expand...

If I had one I'd be happy to share It but all I did was use Quanghao's BOM and I just held off on ordering parts that I wasn't sure about ie. the diodes I just posted about.

I sourced most of the parts from Mouser, Digikey and just a few things off ebay.

I'm 95% done... I held off on the diodes and power supplies which I'm hoping to get from Bud P if he ever responds to my PM's.

If you need specific assistance with a certain parts please PM directly and I'll see what I can do as I do have many extras.

Thanks!
 
#24
measured parameters of I / V stage DAC-ASH
 

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  • Measures IV stage DAC ASH.jpg
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#26
Thanks for the link and price!

One quick question, in the BOM, there are 1/4W, 2W right next to resistors. I assume these mean power rating of resistors. The spec of CCF50 says it's 0.33W so it can handle 1/4W OK but how about "2W" on the 33 ohm resistor?

quanghao said:
Hi! you see it:
CCF50
Vishay Dale
Metal Film Resistors, Industrial, ± 1 % and ± 5 %
http://www.vishay.com/docs/31014/ccf50.pdf

For DAC-ASH
470R x 1
75 x 1
560 x 1
33 R x 6
10 R x 6
47R x 6
100 R x 6
220R x 6
Total: 10$
Click to expand...
 
#32
Hi !
I got to the final! But something strange happens to 6.3V power supply!
AC voltage is 12-14V/ 3A! After about 15 seconds the relay flashing and DC voltage increases and decreases between 2,5V - 6,3V! I use R 80-36 R core transformer from DIYCLUB! Which may be the problem?
Thank you!
 
#35
hotzman said:
Hi !
I got to the final! But something strange happens to 6.3V power supply!
AC voltage is 12-14V/ 3A! After about 15 seconds the relay flashing and DC voltage increases and decreases between 2,5V - 6,3V! I use R 80-36 R core transformer from DIYCLUB! Which may be the problem?
Thank you!
Click to expand...

12-14V AC, it´s not a little bit to high? All the scheme says 6,3 -9V.

Klaus
 
#39
I started DAC! And....sounds damn good!!! I am amazed....
My System:
-transport CDPRO2 with upgrade - diy,
-DAC-END2 6H30PI - diy,
-Aleph 1.7 preamplifier - diy,
-Aleph 5 classA amplifier - diy,
-Open Baffle(Supravox, Eminence Alpha,Visaton drivers) - diy,
-activ crossover for bass - - diy,
-interconects cables - diy.
Thank you Quanghao, Salas and Andreea!
 
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