"Reference" TDA1541A DAC with I2S-BUS architecture - Page 98 - diyAudio
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View Poll Results: Surface Finish for future PCBs
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Old 5th June 2013, 05:23 PM   #971
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Quote:
Originally Posted by merlin2069er View Post
decoupling caps... According to the spreadsheet BOM

Wima MKS02; 0.22F 63V
Wima MKS02; 1F 50V

these 16 caps can be replaced with ;

Cornell Dubilier 1F/16V FCA 1210 caps- Mouser Part No.: 598-FCA1210C105M-G2

I only see 14 smt caps on the front of the board.
What don't I see?
Two of the 1uF are in the onboard I/V stage
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Old 5th June 2013, 05:27 PM   #972
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I've got my tube output stage built (final oscons arrived today).

Click the image to open in full size.

I guess adding the filter would help this tube stage as well.
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Old 6th June 2013, 01:23 PM   #973
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Default Mouser cart

I've got all the mouser parts (I can find on mouser) in this cart...

https://ca.mouser.com/ProjectManager...sID=e5f3e3e479

You guys are more than welcome to copy it... I haven't double checked it yet - but have removed parts from the original BOM (not needed with the latest mods).


Anyone have complete red baron build? I'd like to see them. I don't see how I can fit all these circuit boards into one enclosure.
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Old 7th June 2013, 07:16 AM   #974
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Boards for the regs arrived Oliver, they look great!!..

Thanks,
Shane
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Old 7th June 2013, 10:06 AM   #975
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Quote:
Originally Posted by dvb-projekt View Post
Bargain Sale


Here you could order two of my ready build Red Baron V4.0 DAC test modules,
witch includes the new 3.3V I2S attenuator and free running DEM oscillator modification.

Also on board is the Tube-I-zator bandwidth limiting modification.

Main Parts

- DEM decoupling with Cornell Dubilier Stacked Metallized Film Capacitors 1F/16V FCA 1210 caps
- PRP resistors
- Nichicon FPCAP R7 series capacitors


for the special price of


$55 each

including
Worldwide shipping and paypal fee


Click the image to open in full size.



If you are interested, please send me a PM.




Only one left!
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Old 7th June 2013, 12:07 PM   #976
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I guess the buffer on board isn't necessary if your using a tube output stage.
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Old 7th June 2013, 12:19 PM   #977
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Quote:
Originally Posted by merlin2069er View Post
I guess the buffer on board isn't necessary if your using a tube output stage.
You have to choose the onboard I/V or an external e.g. Tube-I-zator, yes!

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Old 7th June 2013, 01:13 PM   #978
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Thanks. I've got my mini lampizator I'll use first.
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Old 7th June 2013, 03:32 PM   #979
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757-2SK170BLF <- this is obsolete. What can I use in it's place?

JFET N-Ch SM Sig FET -50V NF 0.5dB -1.0nA -30V (757-2SK208-GRTE85LF) <- this ok?

Thanks.

Last edited by merlin2069er; 7th June 2013 at 03:38 PM.
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Old 7th June 2013, 07:52 PM   #980
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Quote:
Originally Posted by merlin2069er View Post
757-2SK170BLF <- this is obsolete. What can I use in it's place?

JFET N-Ch SM Sig FET -50V NF 0.5dB -1.0nA -30V (757-2SK208-GRTE85LF) <- this ok?

Thanks.
You could order them at FETAudio as matched quad.

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