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OLD THREAD DAC End by Andrea Ciuffoli

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#1,762
1. pathetic (1 set)
2. cchean ( 2 sets )
3. Lucylu (1 set)
4. Ulyses31 (1 set)
5. damohpi (1 set dac end 2 pcb)
6. mikvous (4 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 DAC PCB only)
17. Ferrari (1 full set + 1 extra I/V stage PCB)
18. Sugden (1 set)

I've increased to four sets.
Qanghao what would be the postage cost to Athens Greece for 4 sets?
 
#1,768
mikvous said:
1. pathetic (1 set)
2. cchean ( 2 sets )
3. Lucylu (1 set)
4. Ulyses31 (1 set)
5. damohpi (1 set dac end 2 pcb)
6. mikvous (4 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 DAC PCB only)
17. Ferrari (1 full set + 1 extra I/V stage PCB)
18. Sugden (1 set)

I've increased to four sets.
Qanghao what would be the postage cost to Athens Greece for 4 sets?
Click to expand...


1. pathetic (1 set)
2. cchean ( 2 sets )
3. Lucylu (1 set)
4. Ulyses31 (1 set)
5. damohpi (1 set dac end 2 pcb)
6. mikvous (4 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 DAC PCB only)
17. Ferrari (1 full set + 1 extra I/V stage PCB)
18. Sugden (1 set)
19. rolotube (1 set - PAID)

Thanks Quanghao.
 
#1,769
Hi quanghao, I've paid for my set through paypal. Thanks.

1. pathetic (1 set - PAID)
2. cchean ( 2 sets )
3. Lucylu (1 set)
4. Ulyses31 (1 set)
5. damohpi (1 set dac end 2 pcb)
6. mikvous (4 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 DAC PCB only)
17. Ferrari (1 full set + 1 extra I/V stage PCB)
18. Sugden (1 set)
19. rolotube (1 set - PAID)
 
#1,770
Test pcb

Hi all, i have test new PCb up dat! it is ok and good!
You can see, and now i make All PCB, next week i will sent you all PCb!
Thank you!

And all the Bom of DAC and Phono -hi end you can get them in my web!
Printed Boards - quanghao-audiodesign
 

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#1,771
quanghao said:
Hi all, i have test new PCb up dat! it is ok and good!
You can see, and now i make All PCB, next week i will sent you all PCb!
Thank you!

And all the Bom of DAC and Phono -hi end you can get them in my web!
Printed Boards - quanghao-audiodesign
Click to expand...

Gratulations Quang Hao, very nice work.
I hope mine will be soon like this 🙂

I don´t see any fixing point in the middle of the PCB, you don´t think it is save enouth against vibration?

Klaus
 
#1,775
Help with build

I have a few questions if anyone can help.

First, how can I tell what is the proper orientation of the LEDs when soldering them on the board?

Second,
There is places for seperate 47uF/450v caps and a place for the dual cap canister type (47uf+47uf) I am supposing this is for either / or but not to use both (use one or the other), correct?

Thanks,
Jeff
 
#1,776
Hi millerdoc

Second,
There is places for seperate 47uF/450v caps and a place for the dual cap canister type (47uf+47uf) I am supposing this is for either / or but not to use both (use one or the other), correct?

You can use one Cap or use 2 cap 47uF

First, how can I tell what is the proper orientation of the LEDs when soldering them on the board?

See in the image
 

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  • Led.jpg
    Led.jpg
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#1,777
Thanks!
On further review there appears to be places for 3 47uF/450v caps, I see where the two 47uf's connect by the traces to the dual canister cap but what about the 3rd 47uF cap? Should I put a single 47uF in this space?
Thanks,
Jeff

Also, is there a simple method of just looking at an LED to tell which lead is the (+) lead?
 
#1,778
extra parts left over

Hello,
I am in the proces of building this DAC and I have ordered all of the parts. Many of the parts required the purches of multiples of 5, 10, and even 50 (mostly resistors at 50). I will have several items left over when I am complete. It will be a while but soon I will inventory everything I have and what I will have left over. If anybody is planning to build this soon and want my left-over parts (again, mostly resistors, some transistors and caps too) just drop me a PM or email and I will be glad to provide some of these.

It will be a few days before I figure out what I have left over, I am in the process of arranging each board and it's parts together.

Jeff
 
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