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Old 7th March 2012, 04:09 PM   #5521
massimo is offline massimo  Italy
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Quote:
Originally Posted by tonyptony View Post
I understand massimo's preference, but I do hope for a ST solution. Many older higher end DACs used ST glass. It's a much better interface than Toslink (for those who can use it).
Tony, I wasn't complaining about the ST optical o/p at all. It's good to have a pcb hosting all possible interfaces. You can chose the one/ones you prefer.
P.S. Toslink is the worst by far IMO
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Old 7th March 2012, 06:42 PM   #5522
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No problem massimo! I expect the number of people interested in ST would be small, so I just wanted to express my interest one more time.

BTW Tibi, for coaxial out please tell us you're looking at a BNC output. Regardless of what some may wish to consider (or believe) there is no such thing as an RCA connector which exhbits a true 75 Ohm characteristic impedance. Not physically possible. I'd suggest getting the design correct at the interface; users can get a BNC-RCA adapter if needed.
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Old 7th March 2012, 06:59 PM   #5523
BMW850 is offline BMW850  Netherlands
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What do you all think of an AT & T interface such as Erik it has done?
Don't ask me how this works I cannot answer

Hopefully reacts Erik on this discussion ...
See picture:

Regards,
Rudy
Attached Images
File Type: jpg ATReg.jpg (81.3 KB, 345 views)
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Old 7th March 2012, 07:20 PM   #5524
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BMW850, that looks very sweet. Is there a link which points to Erik discussing what he did here?

I see he also decided to go with BNC. Nice!
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Old 7th March 2012, 07:32 PM   #5525
BMW850 is offline BMW850  Netherlands
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Look here: Finally, an affordable CD Transport: the Shigaclone story

Regards,
Rudy
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Old 7th March 2012, 08:55 PM   #5526
BMW850 is offline BMW850  Netherlands
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Have some information found do not know whether it is usable.

Regards,
Rudy

Quote:
Originally Posted by scrutinizer View Post
Hi Valo,

The outputboard is from Wadia 22/23.
On this board the AM26LS31CN chip is fitted followed by a CTS ODL 50 series 2 for ST-optical.
The AM26LS31 is pin compatible with DS26LS31.

Anton.
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Old 7th March 2012, 09:03 PM   #5527
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I appreciate that we are trying to improve over the original, and having extra options to choose from is certainly great. But still, the most common digital interface (by far) is SPDIF over RCA, so I would propose to keep this as our "basic" solution. I heartily support Tibi's proposal to design an extra (optional) PCB for all the more exotic connectors and reclocking.

I would like to reiterate my appeal to try to keep this project friendly to the less skilled DIYers, and also reasonably cheap. There is nothing to stop us from designing a new player after this one, with some much more advanced solutions, or hardcore choices.
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Old 7th March 2012, 09:34 PM   #5528
massimo is offline massimo  Italy
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I support BNC too.
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Old 7th March 2012, 09:49 PM   #5529
billo44 is offline billo44  United Kingdom
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Default Seperate boards

IMG_1048.jpgJust to chip in and say that I found separating the boards very beneficial...
Working on my mark II 'classic' clone (silly I know) which has the original black gate configuration. In truth I can't comment on the improvement in sound since too many other factors are also different from my Mk I attempt.
CD Transport (Shigaclone) Version 1, 2011 twiddlingmyknobs
I am using cast iron for the base, it has very good vibration damping properties...
SPDIF output for me since I need to keep it simple... more options sounds good though!

Last edited by billo44; 7th March 2012 at 09:51 PM.
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Old 7th March 2012, 10:15 PM   #5530
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I like your solid design and (equally solid) parts choices, billo44. Where did you get that cast iron base?
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