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-   -   Power Supply PCB for ES9023 / WM8804 S/PDIF DAC Group Buy (http://www.diyaudio.com/forums/group-buys/218524-power-supply-pcb-es9023-wm8804-s-pdif-dac-group-buy.html)

unixdeveloper 26th August 2012 01:12 AM

Power Supply PCB for ES9023 / WM8804 S/PDIF DAC Group Buy
 
All -

As mentioned in the DAC GB thread here is the thread dedicated to the PSU PSB for our ES9023 / WM8804 S/PDIF DAC.

I have attached the signup sheet here (with interest from DAC PCB GB copied). Will post the details of pricing and estimated shipping date in the next few days.



Schematics:
https://docs.google.com/open?id=0B9E...kJuY3RjMGFfU2s

BOM:
https://docs.google.com/open?id=0B9E...U5sWkJrSWxuRmM


Group Buy Closed.

Cheers!
Subbu

danzup 28th August 2012 08:30 AM

I want also a pcb . Can you add me on list ?

GuidoR 30th August 2012 09:48 AM

Any chance to have the schematic? (I can guess from the BOM that is very similar to that of the datasheet, plus some tricks as the common mode choke, but there are some components left over...)

Thanks

Guido

jean-paul 30th August 2012 11:11 AM

Schematics will only be sent to those that buy a board. The BOM should be enough to buy parts etc. It is standard datasheet schematic PNP pass transistor and common mode choke + some extra decoupling.

A chip that has been around for 40 years has proven its merits. There are very few improvements that can be made with the already excellent LM723.

Veggiel 30th August 2012 04:32 PM

Please add me to the list for one board.
I never saw a message with the combined shipping option for the dac boards, I probably missed it.

GuidoR 31st August 2012 10:23 AM

Quote:

Originally Posted by jean-paul (Post 3145403)
Schematics will only be sent to those that buy a board. The BOM should be enough to buy parts etc. It is standard datasheet schematic PNP pass transistor and common mode choke + some extra decoupling.

A chip that has been around for 40 years has proven its merits. There are very few improvements that can be made with the already excellent LM723.

Thanks jean-paul, it was my thought.
I'll add myself to the list.

Guido

doors666 31st August 2012 03:37 PM

Quote:

Originally Posted by Veggiel (Post 3145712)
Please add me to the list for one board.
I never saw a message with the combined shipping option for the dac boards, I probably missed it.

Is this just for the psu pcb or can we get the dac boards also?

unixdeveloper 9th September 2012 07:56 AM

Quote:

Originally Posted by doors666 (Post 3147034)
Is this just for the psu pcb or can we get the dac boards also?

This GB is only for the PSU PCB.

unixdeveloper 9th September 2012 08:03 AM

Updated the first post with pricing / schedule information. Feel free to ask questions if you have any.

necplusultra 9th September 2012 09:59 AM

question:

would it be possible to have another group buy for the dac pcb?

OR:

would it be possible to sell me another dac pcb?


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