OLD THREAD DAC End by Andrea Ciuffoli

Joshua_G · 2010-03-24 11:05 pm

Sorry, my mistake.
I correct what I wrote.

1. Strosek: full set
2. boudy : full set
3. ksnider1: full set
4. toufu : (IV + Supply For IV) x 2
5. ferrari: (IV + Supply For IV) x 3
6. analogdiy: full set
7. wobii: full set
8. Cobra2: (IV + Supply For IV) x 2
9. mikelm: full set
10. le´flu: just one salas reg
11. Joshua_G: full set (1PCB DAC-end, 1 PCB IV- stage for DAC, 1 PCB Salas shunt for DAC).
12. ims: 2 x PCB-Supply for I/V salas reg

As I understand, the prices are:
PCB- DAC END = $15
PCB- I/V stage = $15
PCB- Supply for I/V = $15
Shipping = $6
(so far $51)
Plus Payment by PayPal fee %3.5 = $52.785 .
Is that correct?
Shall it be $52.78 or $52.79?
(I had to browse back 112 pages to get to the prices)!

Payment should be made to: quanghao168@yahoo.com.vn .

Nikon1975 · 2010-03-24 11:29 pm

Is still possible to order the PCBs ?

Davide

boudy · 2010-03-25 12:35 am

Reapply my update...

1. Strosek: full set
2. boudy : DAC-end x 1, Salas shunt for DAC x 1, IV- stage for DAC x 1, Salas shunt HV x 2
3. ksnider1: full set
4. toufu : (IV + Supply For IV) x 2
5. ferrari: (IV + Supply For IV) x 3
6. analogdiy: full set
7. wobii: full set
8. Cobra2: (IV + Supply For IV) x 2
9. mikelm: full set
10. le´flu: just one salas reg
11. Joshua_G: full set (1PCB DAC-end, 1 PCB IV- stage for DAC, 1 PCB Salas shunt for DAC).
12. ims: 2 x PCB-Supply for I/V salas reg

Ferrari · 2010-03-25 6:39 am

Joshua_G, You can input whatever you want but, please pay attention to the updates of other people too.
It's not about you only !!!

1. Strosek: full set
2. boudy : DAC-end x 1, Salas shunt for DAC x 1, IV- stage for DAC x 1, Salas shunt HV x 2
3. ksnider1: full set
4. toufu : (IV + Supply For IV) x 2
5. ferrari: (1x DAC-end) + (2x Salas shunt for DAC) + (3x IV)
6. analogdiy: full set
7. wobii: full set
8. Cobra2: (IV + Supply For IV) x 2
9. mikelm: full set
10. le´flu: just one salas reg
11. Joshua_G: full set (1PCB DAC-end, 1 PCB IV- stage for DAC, 1 PCB Salas shunt for DAC).
12. ims: 2 x PCB-Supply for I/V salas reg

noizas · 2010-03-25 7:46 am

1. Strosek: full set
2. boudy : DAC-end x 1, Salas shunt for DAC x 1, IV- stage for DAC x 1, Salas shunt HV x 2
3. ksnider1: full set
4. toufu : (IV + Supply For IV) x 2
5. ferrari: (1x DAC-end) + (2x Salas shunt for DAC) + (3x IV)
6. analogdiy: full set
7. wobii: full set
8. Cobra2: (IV + Supply For IV) x 2
9. mikelm: full set
10. le´flu: just one salas reg
11. Joshua_G: full set (1PCB DAC-end, 1 PCB IV- stage for DAC, 1 PCB Salas shunt for DAC).
12. ims: 2 x PCB-Supply for I/V salas reg
13. noizas: DAC-end x 1, Salas shunt for DAC x 1, IV- stage for DAC x 1

Nikon1975 · 2010-03-25 8:28 am

I guess it's possible

1. Strosek: full set
2. boudy : DAC-end x 1, Salas shunt for DAC x 1, IV- stage for DAC x 1, Salas shunt HV x 2
3. ksnider1: full set
4. toufu : (IV + Supply For IV) x 2
5. ferrari: (1x DAC-end) + (2x Salas shunt for DAC) + (3x IV)
6. analogdiy: full set
7. wobii: full set
8. Cobra2: (IV + Supply For IV) x 2
9. mikelm: full set
10. le´flu: just one salas reg
11. Joshua_G: full set (1PCB DAC-end, 1 PCB IV- stage for DAC, 1 PCB Salas shunt for DAC).
12. ims: 2 x PCB-Supply for I/V salas reg
13. noizas: DAC-end x 1, Salas shunt for DAC x 1, IV- stage for DAC x 1
14. Nikon: DAC-end x 1, Salas shunt for DAC x 1, IV- stage for DAC x 2

Can someone point me to a BOM for this project ?

Thanks,

D.

quanghao · 2010-03-25 8:56 am

Can someone point me to a BOM for this project ?

Thanks,

D.[/QUOTE]

That is file

adamus · 2010-03-25 10:34 am

agithegreat:

"Ok i have another problem, on my I/V board.
I had C6 and C2 blow as I put them in the incorrect way around. Since replacing them I no longer get any voltage drop across R1-4 and R13-16.
What have i blown?

I should also say that i do not have the tube plugged in. However when i had voltage drop earlier, i didn't have them in them either. Was it because the cap was the incorrect way around that it allowed current flow and as such gave me a voltage drop??? "

did they go off like grenades, or did they just smoke?

if no tube is in, then no current flows, then no drop.

...however....

you have more than likely blown the mosfet and maybe the zener (check it).

I would also check the resistors around that area. Without the caps in you should get sensible readings.

Nikon1975 · 2010-03-25 10:35 am

Thanks,

D.

Agi · 2010-03-25 11:49 am

adamus said:
agithegreat:

"Ok i have another problem, on my I/V board.
I had C6 and C2 blow as I put them in the incorrect way around. Since replacing them I no longer get any voltage drop across R1-4 and R13-16.
What have i blown?

I should also say that i do not have the tube plugged in. However when i had voltage drop earlier, i didn't have them in them either. Was it because the cap was the incorrect way around that it allowed current flow and as such gave me a voltage drop??? "

did they go off like grenades, or did they just smoke?

if no tube is in, then no current flows, then no drop.

...however....

you have more than likely blown the mosfet and maybe the zener (check it).

I would also check the resistors around that area. Without the caps in you should get sensible readings.

Thanks again.
It was just as I didn't have the tubes in. They only went pop, then i instantly pulled the power. They didn't short, i think, so everything is now fine with the tubes in. The reason I got v drop before was due to the polarized caps in the incorrect way, allowing current to flow, where it shouldn't.

My CS arrives today, so tonight I will be testing it.

quanghao · 2010-03-25 2:29 pm

My friend Change R 13 in the Salas low shunt say that:*vâng chỉ phần nguồn dành cho CS và 74HC04 thôi bác nhé!
Thay xong nhớ cho em biết cảm nhận nhé!
cảm ơn[/quote]
Em mới tháo nguồn salas ra để thay con R13, không ngờ ngày xưa lúc lắp nhìn nhầm nên đã lắp con 3,3ohm. Thảo nào con DAC của em hay nhất

.[/quote][/quote]
Lay hoay cả ngày thử nghiệm lại thì em thấy trở R13 dùng giá trị từ 10-12ohm là thích hợp nhất. Trở R13 lắp lớn quá sẽ làm giảm bass.*

(yes the only source for the CS and the only doctor 74HC04 nhé!

Complete change in mind for you that feel nhé!

Thanks [/ quote]

Remove the source of new em Salas to replace the R13, incredibly old days looking at the wrong installation should have installed the 3.3 ohm. No wonder she's the best DAC: D. [/ Quote] [/ quote]

struggling all day experiment, the more they see the value of R13 using 10-12ohm is most appropriate. Become too large R13 installation will reduce bass.)

Joshua_G · 2010-03-25 2:44 pm

Guanghao,
You still didn't reply my questions about the prices.
How do you expect people to send you money when they don't know the exact amount they should send?

I repeat my questions:

As I understand, the prices are:
PCB- DAC END = $15
PCB- I/V stage = $15
PCB- Supply for I/V = $15
Shipping = $6
(so far $51)
Plus Payment by PayPal fee %3.5 = $52.785 .
Is that correct?
Shall it be $52.78 or $52.79?

quanghao · 2010-03-25 2:57 pm

Joshua_G said:
Guanghao,
You still didn't reply my questions about the prices.
How do you expect people to send you money when they don't know the exact amount they should send?

I repeat my questions:

As I understand, the prices are:
PCB- DAC END = $15
PCb Salas shunt for DAC=15
PCB- I/V stage = $15
PCB- Supply for I/V = $15 ( Now i dont have it, i make it later, you can use Salas shunt for IV stage)

no! i need 50$ for:
1 PCb DAC + 1 PCb Salas shunt for DAC + 1 I/V stage + shiping + free paypal.
Supply for I/V you can waite me some day later!
thank you!
Quanghao

Nikon1975 · 2010-03-25 2:58 pm

There is also the board for the DAC power supply to include in the count.

D.

quanghao · 2010-03-25 3:19 pm

Nikon1975 said:
There is also the board for the DAC power supply to include in the count.

D.

No! I only not have PCb supply for I/V stage.
PCB-DAC, PCB Salas shunt for DAC, PCb i/V stage is ok.

adamus · 2010-03-25 3:54 pm

quanghao said:
My friend Change R 13 in the Salas low shunt say that:*vâng chỉ phần nguồn dành cho CS và 74HC04 thôi bác nhé!
Thay xong nhớ cho em biết cảm nhận nhé!
cảm ơn

Em mới tháo nguồn salas ra để thay con R13, không ngờ ngày xưa lúc lắp nhìn nhầm nên đã lắp con 3,3ohm. Thảo nào con DAC của em hay nhất

.[/quote][/quote]
Lay hoay cả ngày thử nghiệm lại thì em thấy trở R13 dùng giá trị từ 10-12ohm là thích hợp nhất. Trở R13 lắp lớn quá sẽ làm giảm bass.*

(yes the only source for the CS and the only doctor 74HC04 nhé!

Complete change in mind for you that feel nhé!

Thanks [/quote]

quanghao, could you translate please? is this just saying use 10r for R13 ?

quanghao · 2010-03-25 4:14 pm

He said: when he check the shunt resistor R13 that he is using 3.3R (because he looked the wrong value).

Then he changes the value of R 13 = 8. and 10R, he lost a day to try R13 = 10 or 12R. It is the best ! if use R13 bigger , so the sound of bass is drop

Do you understand??
my EL is bad, Ii m sorry

adamus · 2010-03-25 4:16 pm

i understand, thanks

quanghao · 2010-03-25 4:22 pm

adamus said:
i understand, thanks

You can try to it???
thank you!

adamus · 2010-03-25 4:28 pm

i am using 11r (3 * 33r).

my guess is, 3r the tranformer is stuggling and 20r+ there isnt enough shunt current for the regulator to be optimal.

anymore than 20r and i cant adjust to 5.5v

OLD THREAD DAC End by Andrea Ciuffoli

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