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Old 8th January 2011, 08:58 AM   #4191
billo44 is offline billo44  United Kingdom
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Quote:
Originally Posted by Peter Daniel View Post

My guide, is to help people build a reasonable quality transport, at reasonable cost and time, nothing to do with any Valhalla.
This is exactly what your guide has helped me to do Peter, and I thank you for it!
Affordable is the key point for me!

I went to Valhalla a few times... apparently you can get in with a Star Alliance frequent flyer card!..., but it's over rated! They charge for drinks these days!

Love to all!
Bill
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Old 10th January 2011, 12:56 AM   #4192
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Quote:
Originally Posted by Erik van Voorst View Post
It is a pity though that more enthousiastic people cannot take it any further...
Well, I had another look into our discussion and it seems like it was some sort of misunderstanding, at least I hope so.

When I said:

Quote:
Originally Posted by Peter Daniel View Post
It is an absolute requirement that CD platform is machined with platform mounted on a shaft, otherwise you will get wobbling problems. For that reason, it's advisable to machine the parts from relatively soft material, like Delrin or acrylic.

The whole batch of Delrin platforms that is shown in your attachment was screwed up and not possible to use only because the shaft holes were drilled last.
You replied:

Quote:
Originally Posted by Erik van Voorst View Post
Make up your mind Peter....in post 1675 you said it measures fine...and in post 1685 you said it sounded fine...

Here is what you said in post 1685:

"About the sound with a new clamp, well, it seems like it is an improvement.

The sound is more effortless, there is more dimensionality and separation. The resolution seems to be improved as well. The bass better defined and I'm noticing the improvement in acoustic space.

The sound may be a bit more forward, but it's not bothering.

Overall, it is probably an improvement similar to installation of a new clock, without typical drawbacks of those clocks"

Now you are not saying I was right all the time...
Looking at it now, I can only assume that you understood me as saying that using those delrin clamps screwed up the sound. What I meant was not the sound, but the mechanical properties of CD table/clamp when installed on motor’s shaft; they were simply not usable and I had to replace it with another sample that the seller supplied. From what I remember none of the sample from first run were completely perfect, most likely because of fabrication error/negligence.

Quote:
Originally Posted by Erik van Voorst View Post
It is a pity though that more enthousiastic people cannot take it any further...
So I'm not opposing any advancement in further development of that project and I certainly enjoyed all the pictures you posted here. I also admire your effort and determination, and myself, I wouldn't be able to find enough inspiration to "go (baldly) where no man has gone before"

One of the reasons is possibly the fact that I already owned, and still own, CEC TL0, which is more or less mechanically perfect and I wouldn't be able to improve on it with anything I could possibly do to Shigaclone. That's why I was never interested in modding Sanyo transport beyond basic structural integrity which I achieved with simple copper base and wooden frame.

As to electrical aspect of the modification, I really like simplicity. The only thing I didn't do yet is the discreet power regulator and based on my current experiments with DAC I'm convinced that they would improved performance here, but again, would it be so much of a gain? I don't lose sleep over it, as long as I'm still enjoying the little transport.

And this is key aspect: As long I enjoy something, I’m not really tempted to do any changes.

In a meantime I did little discovery with regards to the mods I posted earlier, specifically the output reclocking circuit. While initially I quite liked it in my system, later I had a chance listening to it in much better tweaked system than mine and final conclusions of 3 participants in a listening panel was in agreement that the transport sounds better without reclocker; more natural, purer and more immediate, while with reclocker there were obvious traces of digitizing of the sound. Subsequently, I also moded my CEC TL0 and removed the reclocker, did the similar mod on friend’s TL1.

Now, some of you are certainly curious how Shigaclone compares to TL0? Well, TL0 is definitely better. When listening in a highly tweaked system, TL0 has an authority and sound purity that can be easily comparable to good vinyl rig (that also depends what DAC is being used), and Shigaclone, while technically very correct, still shows some deficiencies associated with lesser digital front ends. By that I don’t really mean tonality, soundstage or some other typical audiophile aspects, but more of a purity of a tone itself and the way how sounds are projected in a listening space, it’s just not as refined as TL0.

OTOH, TL0 has problems with playing CD-Rs and even some regular CDs (especially second layer on hybrid SACD), in such cases I use Shigaclone and I don’t really think I lose that much, at least in my system
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Old 10th January 2011, 09:50 AM   #4193
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Default shiga

Hi there! Are there still some jvc"s 31/35 around? ThanksTeake
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Old 15th January 2011, 01:50 PM   #4194
billo44 is offline billo44  United Kingdom
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Default Capacitor recommendations

Black Gate capacitors seem to be getting as rare as a very rare thingy these days so I am hoping for some informed suggestions for substitute capacitors in the PS and the 47uF cap marked as E5 on Okapi's pdf guide.

I have used Nichicon ZL in the power supply and Nichicon fine gold 47uF cap for E5.
Sounds nice enough to me but I am keen to experiment!

A good deal of the advice on this thread pre-dates the extinction of the black gate capacitors.

Hope this isn't off subject....

Thanks for the scotch brite tip for achieving a brushed finish on acrylic... worked well.
I also did a quick hit with polymer wax and have a very serviceable finish on the black acrylic! Doesn't show finger marks too much. Still a static disaster zone though!

The flash is a bit cruel in this picture....

Bill
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Old 18th January 2011, 02:44 PM   #4195
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Few months ago I finally decided to "upgrade" caps in my CEC TL0 transport. Based on experience I gathered with Shigaclone I used BG FK2200/35 before and BG STD 1000/25 after regulators.

I left it like that for couple weeks, but in the end couldn't get used to the sound; for some reason the original caps in TL0 sounded much more natural and overall better, so I went to reinstall them back again and I'm completely happy with the sound . Those are the green Nichicon MUSE.
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Old 18th January 2011, 11:10 PM   #4196
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keep a eye on amazon.com they pop up every now and then ,I am not sure but I think they will (email)notify you when they have one about $90 us...good luck!
and yes I got mine there,lol.
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Old 18th January 2011, 11:18 PM   #4197
kevinkr is offline kevinkr  United States
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Quote:
Originally Posted by billo44 View Post
<snip>
I also did a quick hit with polymer wax and have a very serviceable finish on the black acrylic! Doesn't show finger marks too much. Still a static disaster zone though!

The flash is a bit cruel in this picture....

Bill
You might want to try one of those anti-static sprays used to treat office environments. Just protect the mechanism from over spray. Worth a shot I guess, not sure how well it will work on acrylic.
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Old 19th January 2011, 04:27 AM   #4198
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Hi Peter

Out of interest, did you ever try the Nichicon MUSE with the Shigaclone?

Tim

ps Got the DAC and LM4780 kits today, thank-you.


Quote:
Originally Posted by Peter Daniel View Post
Few months ago I finally decided to "upgrade" caps in my CEC TL0 transport. Based on experience I gathered with Shigaclone I used BG FK2200/35 before and BG STD 1000/25 after regulators.

I left it like that for couple weeks, but in the end couldn't get used to the sound; for some reason the original caps in TL0 sounded much more natural and overall better, so I went to reinstall them back again and I'm completely happy with the sound . Those are the green Nichicon MUSE.
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Old 19th January 2011, 04:45 AM   #4199
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Never tried those with Shigaclone, but now I would be very curious to see how they sound there.

BTW, when installing non polar BG caps in a DAC (N, NX) orient them with short pin (or NONPOLAR print side) to +, they sound better this way.
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Old 20th January 2011, 10:27 PM   #4200
JBdV is offline JBdV  Netherlands
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@Peter,

are these green Nichicon Muse bipolar ???
The only Nichicon Muse in green I can find are the ES version which is bipolar...

Jan
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