OLD THREAD DAC End by Andrea Ciuffoli

[quanghao]

All circuit DAC-END new up dat

 

[Salas]

I see no output capacitors. Is it using the local decoupling capacitors on the chips as output capacitors? Integrated regs on board with the chips? Without output capacitors would be very wrong. At least 47uF and enough ESR.

 

[quanghao]

I see no output capacitors. Is it using the local decoupling capacitors on the chips as output capacitors? Integrated regs on board with the chips? Without output capacitors would be very wrong. At least 47uF and enough ESR.

Yes, it is shared with the DAC, only a 47uF capacitor is fully

 

[Salas]

Listen to it without the 0.1uF bypasses as well and decide if its best with just the 47uF terminal capacitors.

 

[hotzman]

Originally Posted by ben-jam-in View Post
1. pathetic (1 set)
2. cchean ( 2 sets )
3. Lucylu (1 set)
4. Ulyses31 (1 set)
5. damohpi (1 set)
6. mikvous (3 sets)
7. gipione ( 1 set)
8. flocchini (1 6h6P if done, 1 Salas HV)
9. belkoff (full set dac end 2 + 1 6h6P if done, 1 Salas HV) + schematic for each PCB
10. klaju1955 (1 set)
11. ben-jam-in (1 set)
12. morpheous
13. hotzman (2 x full set new dac end 2 pcb)
.....

 

[le´flu]

1. pathetic (1 set)
2. cchean ( 2 sets )
3. Lucylu (1 set)
4. Ulyses31 (1 set)
5. damohpi (1 set)
6. mikvous (3 sets)
7. gipione ( 1 set)
8. flocchini (1 6h6P if done, 1 Salas HV)
9. belkoff (full set dac end 2 + 1 6h6P if done, 1 Salas HV) + schematic for each PCB
10. klaju1955 (1 set)
11. ben-jam-in (1 set)
12. morpheous
13. hotzman (2 x full set new dac end 2 pcb)
14. le´flu (one complete set of new DAC-pcb)

 

[Strosek]

Hi Quanghao, I was the first person on your last board order and I STILL have not receive ANYTHING from you....... Would you kindly send me out another set as I suspect that nothing was ever sent out. I have all the parts waiting so if you could look after this ASAP it would be greatly appreciated.

Thanks STROSEK

 

[alexmi]

me too...

1. pathetic (1 set)
2. cchean ( 2 sets )
3. Lucylu (1 set)
4. Ulyses31 (1 set)
5. damohpi (1 set)
6. mikvous (3 sets)
7. gipione ( 1 set)
8. flocchini (1 6h6P if done, 1 Salas HV)
9. belkoff (full set dac end 2 + 1 6h6P if done, 1 Salas HV) + schematic for each PCB
10. klaju1955 (1 set)
11. ben-jam-in (1 set)
12. morpheous
13. hotzman (2 x full set new dac end 2 pcb)
14. le´flu (one complete set of new DAC-pcb)
15. alexmi (one complete set)

 

[alexmi]

not anymore

I'm sorry, I changed my mind...I'll delete my position in #15
thanks, Alex

1. pathetic (1 set)
2. cchean ( 2 sets )
3. Lucylu (1 set)
4. Ulyses31 (1 set)
5. damohpi (1 set)
6. mikvous (3 sets)
7. gipione ( 1 set)
8. flocchini (1 6h6P if done, 1 Salas HV)
9. belkoff (full set dac end 2 + 1 6h6P if done, 1 Salas HV) + schematic for each PCB
10. klaju1955 (1 set)
11. ben-jam-in (1 set)
12. morpheous
13. hotzman (2 x full set new dac end 2 pcb)
14. le´flu (one complete set of new DAC-pcb)

 

[klie]

me 2

1. pathetic (1 set)
2. cchean ( 2 sets )
3. Lucylu (1 set)
4. Ulyses31 (1 set)
5. damohpi (1 set)
6. mikvous (3 sets)
7. gipione ( 1 set)
8. flocchini (1 6h6P if done, 1 Salas HV)
9. belkoff (full set dac end 2 + 1 6h6P if done, 1 Salas HV) + schematic for each PCB
10. klaju1955 (1 set)
11. ben-jam-in (1 set)
12. morpheous
13. hotzman (2 x full set new dac end 2 pcb)
14. le´flu (one complete set of new DAC-pcb)
15. klie (1 set)

 

[Nikon1975]

Quanghao,

Can you post the size of the new dac board, I understand that now dac and ps are on the same board.

Thanks,

D.

 

[Yomanze]

Added full list below...

 

[Yomanze]

1. pathetic (1 set)
2. cchean ( 2 sets )
3. Lucylu (1 set)
4. Ulyses31 (1 set)
5. damohpi (1 set)
6. mikvous (3 sets)
7. gipione ( 1 set)
8. flocchini (1 6h6P if done, 1 Salas HV)
9. belkoff (full set dac end 2 + 1 6h6P if done, 1 Salas HV) + schematic for each PCB
10. klaju1955 (1 set)
11. ben-jam-in (1 set)
12. morpheous
13. hotzman (2 x full set new dac end 2 pcb)
14. le´flu (one complete set of new DAC-pcb)
15. klie (1 set)
16. Yomanze (1 set)

 

[Yomanze]

Has anyone tried adding the wildmonkeysects loopfilter mod to this board? Am going to use a CS8412 so would be interested with other experiences.

 

[Strosek]

Quanghao,

I was first on the list for your last board order and nothing was ever sent to me!!! Would you please send out the boards I paid for I need these ASAP!!!

PLEASE RESPOND!!!

 

[jmillerdoc]

Does anybody have a source for good inexpensive transformers for this project?

Also, think it is OK to use the 47uF 16v instead of the 10v OsCon?
Thanks,
Jeff

 

[DIYspaceW]

I also use 47uF 16V instead of 10V! No problem whit that!
You should give a try here:
http://www.electra-print.com/transformers.php

 

[DIYspaceW]

Can someone tell me, how much does the new DAC END 2 PCB cost?

 

[jmillerdoc]

I also use 47uF 16V instead of 10V! No problem whit that!
You should give a try here:
Electra-Print.com Audio Transformers

If having a custom transformer made was what was needed I would go with EDCOR Electronics Corporation, they have the best prices I have found in the states....exceptional products as well. I have just have Edcor take care of this for me in the end but for now I would like to see if I can keep the price very low.
Jeff

I went back to Edcor's websire and found exactly what I was looking for: http://edcorusa.com/Products/ShowProduct.aspx?ID=629

I have used edcors transformers before and removed the endbells so I could mount them sideways for a lower profile, this is what I would do here so I could place this inside the chassis. Not a bad price at all, $32!
Jeff

 

[toufu]

Thanks.

Once I have settled on final touches I will put it in a wood box with copper accents.

For those interested in the 6H6P,6H1P,6H2P I can recommend Oliver's Tube-I-zator board. I had it hooked up to the DAC End2 for a couple of hours this PM and it also has superb sonics. Tight bass, superb voices and excellent detail. Nice option if the NOS ECC182s keep going up.

Enjoy

Hi, what value did you use for Ri/v for the Lampizator board? Thanks.