LClock Schematics

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#81
Re: Audionautes

Elso Kwak said:
I am currently working on version 8 of the KWAK-CLOCK but I will not spread that design by Internet or email.
😎
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Really Elso?No more KC ? I am starting a cry ... :bawling:

Elso Kwak said:


Hi Stefano,
nice mountain picture your avatar. Would you care posting a full size one?
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Sorry Elso , I posted the picture in the wrong thread : please note it in the "which clock to choose" and thanks for your comment .
Nothing important about the link BTW.


😎
 
#83
ALW said:


Aaah the old 'I can tell how it sounds and performs by looking at the schematic'.

As for cost, how much does the test equipment to measure phase noise / jitter to these levels cost these days?

Andy.
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I have to make few things clear here - Yuri Birukov has nothing to do with the design on the link he's posted:

http://lynxaudio.narod.ru/schemes/sch_17.pdf

This particular circuit (as all other schematics on http://lynxaudio.narod.ru web site) was developed by Dimitry Andronnikov - well respected russian audio designer and excellent engineer. His designs are very professional, well researched and properly measured. He certainly knows few things about jitter and how to minimise it. I suspect that Yuri in his post did present that schematics in somewhat rude manner, especially as the thread is about Lclock. However, just to finish, may I add that the measured performance of Dimitry's clock generator should be quite close to the state of the art and it is much simpler to build - after all, this is diyaudio forum 🙂.

I would like to apologise to Lars for somewhat offtopic posting - however I thought it would be better to get the facts right. And just to prevent possible questions - I am not affiliated with Lynxaudio in any way and only know Dimitry from the russian audio forum.

x-pro
 
#84
x-pro said:



I have to make few things clear here - Yuri Birukov has nothing to do with the design on the link he's posted:

http://lynxaudio.narod.ru/schemes/sch_17.pdf

This particular circuit (as all other schematics on http://lynxaudio.narod.ru web site) was developed by Dimitry Andronnikov - well respected russian audio designer and excellent engineer. His designs are very professional, well researched and properly measured. He certainly knows few things about jitter and how to minimise it. I suspect that Yuri in his post did present that schematics in somewhat rude manner, especially as the thread is about Lclock. However, just to finish, may I add that the measured performance of Dimitry's clock generator should be quite close to the state of the art and it is much simpler to build - after all, this is diyaudio forum 🙂.

I would like to apologise to Lars for somewhat offtopic posting - however I thought it would be better to get the facts right. And just to prevent possible questions - I am not affiliated with Lynxaudio in any way and only know Dimitry from the russian audio forum.

x-pro
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I was wondering when ECL was gunna crop up around here!
So, correct me if I'm wrong, it appears we have a logic gate XO
but based on ECL. Does this make it OK since ECL is always
class A??
Any comments dig gurus?

Terry
 
#92
Gyula said:
Does anybody suggest me a schemtic from crystal controlled linear triangle wave generator? The linearity and the phase noise is the most important aspect.

Thank you!

Gyula
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Hi

I'd suggest a low noise clock putting out a square wave. Convert that to a current charging / discharging a capacitor and you get your triangle. May need some fiddling.

regards
 
#98
Lars, thanks for publishing your designs here. This thread has been running for a while however I don’t visit as much as I used to. Early in the thread others expressed concern at commercial designs being published and hence copied by other commercial interests. Let me assure you that it is very easy for a company to simply go out and purchase competing products, indeed this is the routine in Asia. The cost of doing so is insignificant to a company and allows testing and evaluation. In the past some companies even went to the extreme of “potting” their products in black epoxy, took a bit more effort to get into them but we still managed 😉 There is little point in being paranoid about your design but refreshing when I see somebody realise that.

Looking at the evolution of the oscillators, apart from a switch from parallel to series mode, would it be true to say Lars that the real gains in performance have come from the improved power supplies (and presumably more sophisticated board layout)? Is the next step an oven 🙂

Incidentally the original Lclock1 is precisely the same as used by Arcam (for one) in their CD players, once again proving that there is little point in being paranoid about design, share it and maintain enthusiasm in the industry that infects others.

Cheers

Pete
 
#99
Commercial Copying

Pete Fleming said:
Lars, thanks for publishing your designs here. This thread has been running for a while however I don’t visit as much as I used to. Early in the thread others expressed concern at commercial designs being published and hence copied by other commercial interests. Let me assure you that it is very easy for a company to simply go out and purchase competing products, indeed this is the routine in Asia. The cost of doing so is insignificant to a company and allows testing and evaluation. In the past some companies even went to the extreme of “potting” their products in black epoxy, took a bit more effort to get into them but we still managed 😉 There is little point in being paranoid about your design but refreshing when I see somebody realise that.

Looking at the evolution of the oscillators, apart from a switch from parallel to series mode, would it be true to say Lars that the real gains in performance have come from the improved power supplies (and presumably more sophisticated board layout)? Is the next step an oven 🙂

Incidentally the original Lclock1 is precisely the same as used by Arcam (for one) in their CD players, once again proving that there is little point in being paranoid about design, share it and maintain enthusiasm in the industry that infects others.

Cheers

Pete
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Hi Pete,
If nothing is sacred one can go to take the step to mill off all partnumbers as Guido Tent does.
I don't think potting is the way to go for high frequency components like a clock.
You would also be surprised how little copiers understand of the workings of the circuit even with the schematic right in front of their eyes! The numerous attempts I received by email to "improve" my circuit are just proof of that. 🙄 🙄
:apathic:
 
#100
If nothing is sacred one can go to take the step to mill off all partnumbers as Guido Tent does.
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What's wrong with protecting one's IP and what's not sacred about that ? There is a difference in how you both sell your products but in the end the results are the same. Your continuous referring to Guido's products in a not too positive way is becoming obvious Elso.

It is not gentleman-like to promote your own products by saying something negative about the competitors products. And before you bring it up; I am a satisfied Tent clock user.
 
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