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Old 19th December 2012, 03:28 PM   #201
Ryssen is offline Ryssen  Sweden
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At the second filtercap,is that at the ouput of the PSU?There it is 4.97v
Actually I just choose the first transformer I came across in the Elfa catalog..
And I had to slightly bend the pins of the transformer to make it fit on the pcb.

And the extra fuse holder...I forgott there was a fuse on the pcb but had drilled the hole on the back..so I thoght I just as well use it..

What happends if you twist the Spdif cable?
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Old 19th December 2012, 03:44 PM   #202
syklab is offline syklab  Hong Kong
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I had to use this transformer and it actually fit nicely. It had to ship from US to HK but orignated from China.

FS16-150 - TRIAD MAGNETICS - BOBBINS TRANSFORMER | e絡盟 Hong Kong
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Old 19th December 2012, 04:08 PM   #203
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Hi Åke, I mean at the second 1000 uF cap.
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Old 19th December 2012, 04:15 PM   #204
pchw is offline pchw  United States
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Quote:
Originally Posted by jean-paul View Post
Hi Fred, can you explain why you use 2 fuses in series ?
Double safety , no, just laziness

Quote:
Nice build, how does the power supply perform ?
The PS performs very well, I had my second Dac board built last weekend.
I am able to compare various PS that I have built for this Dac side by side.
To my ear and my gears, this PS is better than all the souped up 7805/LM317 types of PS and is a touch below the Salas BiB 1.1. But considering the simplicity of packaging the PS and the Dac in one small chassis with such quality, it will be difficult to beat.
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Old 19th December 2012, 04:26 PM   #205
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Thanks for the comment. I am glad you like it. LM723 is a good chip, better than most LDO regs. I knew some would laugh at it but quality was the parameter we choose it for. It seems we did the right thing
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Old 19th December 2012, 04:54 PM   #206
Ryssen is offline Ryssen  Sweden
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Quote:
Originally Posted by jean-paul View Post
Hi Åke, I mean at the second 1000 uF cap.
It is 15v
Q1 gets "fingertip hot"
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Old 20th December 2012, 07:49 AM   #207
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So you could have used a 2 x 7.5 V transformer. As long as the LM723 gets 9.5 V minimum it wil be OK. Mount a small heatsink or a piece of L shaped aluminium on Q1 just in case.
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Old 14th January 2013, 11:03 PM   #208
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Is it still possible to get the board and instruction to build this dac?

Thanks

jgwtriode
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Old 22nd January 2013, 10:21 PM   #209
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Default Or the Eagle project files?

Quote:
Originally Posted by jgwtriode View Post
Is it still possible to get the board and instruction to build this dac?

Thanks

jgwtriode

Or will you post the Eagle CAD project files? THAT would be slick!! Then we could MOD it a bit... "it IS DIY"
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Old 22nd July 2013, 09:30 PM   #210
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What's the best sounding version of the ES9023 to get off ebay in the UK? I don't mind putting it in a case and building my own PSU

Hifimediy Sabre USB DAC ES9023+Tenor TE7022, 96khz/24bit, 96/24 +usb to optical | eBay

HiFimeDIY Sabre USB DAC 2 (external PSU) 96khz/24bit ES9023+TE7022 + Coaxial Out | eBay

ES9023DAC PCM2706 CS8421 192KHZ 24BIT LM4766 Omron USB DAC Kit WLX | eBay

In Case ES9023+TE7022 192K-24BIT USB DAC coaxial fiber DAC 110v or 220v | eBay

Or suggest some other way of getting a good board like this?
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