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OLD THREAD DAC End by Andrea Ciuffoli

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Y

Yunick

Member
Joined 2006
Nikon1975 said:
I got the mine playing tonight ! Very impressed by the sound.

I have around 5.3 V on the input of the DAC. Is that enought ? I cannot raise it more.

Good project !! I like all these little modules to play around.

Davide
Click to expand...


Hi, Good work!

Please post some pictures :)

Regarding 5.3V..
What is your resistor value for R13 on salas shunt?
Also measure gate - source on the last mosfet. It should read around 4V. If not you need to lower the R13 resistor value.

Best Regards
David
 
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N

Nikon1975

Member
Joined 2009
This is a picture of the working prototype.

I used one transformer with two secondaries for +-5V one for +5V.

The black small one is a 5H choke and the black big one is the power transformer for HV. this is temporary.

Still did not understand the right position for the jumper, and how many regulators and filament supply I should use.

BR,

Davide
 

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Y

Yunick

Member
Joined 2006
Nikon1975 said:
This is a picture of the working prototype.

Still did not understand the right position for the jumper, and how many regulators and filament supply I should use.
Click to expand...

HI,

Thanks for the picture :)

If you want the signal to be in phase you need to connect a jumper between 2 and 3. If not. Use 1 and 2.

Your prototype seems to be complete to me.

Nice work with the shunt reg for the tube stage!

Best Regards
David
 
K

ksnider1

Member
Joined 2009
Yunick said:
Very nice!

I see you have Wima on the output of I/V. how do you like them?

I tried RIFA PHE426 1µf and liked it very much.

You have some good time ahead trying different mods :)

Best Regards
David
Click to expand...

I like them, I'm surprise how well it plays. I want to try some Russian OTK PIO caps later on. I did A-B with my Y2 DAC and found that when using terminal blocks L input channel on I/V is R and R is L. Photo on my previous post is correct.
I also had jumper set to 1-2, I changed to 2-3.
 
Y

Yunick

Member
Joined 2006
I thought I should post some pictures of my build.

I did as Adamus recomended and removed the inductors and added the "led-mod". I listened to the DAC standard and to me these mods made it suit my ears better.

I tried both E182CC and 5687 and prefer the E182CC. Also use Sprauge Hyrel Q 1µf output caps.

To me this DAC easily beat my old parallell tda1543 dac.

Thanks Quang hao, Andrea and Salas. Also thanks to everyone who contributed in this thread!
 

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K

ksnider1

Member
Joined 2009
NOS E182CC Mullard

I got my DacEnd up and running yesterday. I had day off today and I'm playing music all day. I'm enjoying very much. I'm running with GE JAN 5687WB, I want to try E182CC. Where preferably in US I can get E182CC for reasonable price ?
I found on ebay:
"6N6P Double Triode, It is direct replacement of ECC99,E182CC"
but it's not, correct ?
 
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