Several persons have expressed the wish to view our schematics for various versions LClock.
Therefore i have decided to make them all available here on diyaudio.com, so you can build them freely as you like.
To make it easier to oversee everything i will post the 4 basic schematics in cronological order. (Lclock 1, Lclock 2/C2, Lclock XO/XO2, Lclock XO3).
But please bear with me, i have to find them, check them and brush them up a bit as i go, so it might take a week or two before all schematics are posted.
Here is the first one LClock 1:
Therefore i have decided to make them all available here on diyaudio.com, so you can build them freely as you like.
To make it easier to oversee everything i will post the 4 basic schematics in cronological order. (Lclock 1, Lclock 2/C2, Lclock XO/XO2, Lclock XO3).
But please bear with me, i have to find them, check them and brush them up a bit as i go, so it might take a week or two before all schematics are posted.
Here is the first one LClock 1:
Attachments
LC Audio
Hi,
This is a wice/nice set Mr. Clausen.
You have my respect! Good start!
Audiofanatic 😉
Hi,
This is a wice/nice set Mr. Clausen.
You have my respect! Good start!
Audiofanatic 😉
Forgive my ignorance but...
I may be interested in making a clock for my CD system, but I do not know a lot about them, what is the difference in the two clock schematics?
Chris
I may be interested in making a clock for my CD system, but I do not know a lot about them, what is the difference in the two clock schematics?
Chris
Why doesn't anybody use series resonance oscillators? I read somewhere that you get the most stable oscillation by this mode. I don't know if it's true or if it's good when it comes to phase noise.
BTW: I haven't forgotten you, Elso, my promise 🙂
BTW: I haven't forgotten you, Elso, my promise 🙂
Peranders: You are right, series resonant mode is better than parallel resonant mode, because the impedance of the crystal in series mode is much lower than in parallel mode. This leads to lower noise sensitivity.
And inside of a CD or DVD player there is plenty of digital noise to disturb the oscillator.
In the two above early LClock's we used parallel resonant mode, as it is the simplest to work with. Later on it will change to series resonance mode.
And inside of a CD or DVD player there is plenty of digital noise to disturb the oscillator.
In the two above early LClock's we used parallel resonant mode, as it is the simplest to work with. Later on it will change to series resonance mode.
Respect for you Lars but beware Lars, don't give away too much or your designs will be copied by people with commercial interests ....
Multumesc, Lars!
I have one question (a bit off topic). Are these MELF (SMD) resistors good for audio or just for digital purposes? I can see them on the pictute.
Thanks!
I have one question (a bit off topic). Are these MELF (SMD) resistors good for audio or just for digital purposes? I can see them on the pictute.
Thanks!
Hi!
I do not think that that will be a problem. Commercial firms copying high end stuff only do so, if a high profi margin can be expected. But hifi tuning with additional clocks is such a "Hi-Fi-Geek"-stuff, that they probably won't bother.
Unless a manufacturer for CD/DVD/SCD-players would like to use that design in theri products, in that case, why not? If manifacturers chose to improve their products, so be it...
And for example the complete circuit of "The End Millenium XP" is also available at LCAudio's site, but I do not know of any rip-offs so far...
Bye,
Arndt
jean-paul said:
I do not think that that will be a problem. Commercial firms copying high end stuff only do so, if a high profi margin can be expected. But hifi tuning with additional clocks is such a "Hi-Fi-Geek"-stuff, that they probably won't bother.
Unless a manufacturer for CD/DVD/SCD-players would like to use that design in theri products, in that case, why not? If manifacturers chose to improve their products, so be it...
And for example the complete circuit of "The End Millenium XP" is also available at LCAudio's site, but I do not know of any rip-offs so far...
Bye,
Arndt
Lars,
Question, why did you use an 02 instead of a fast comparitor. With a comparitor you have more control over pluse.😉
Question, why did you use an 02 instead of a fast comparitor. With a comparitor you have more control over pluse.😉
LC Audio XO3 clock caper...
I installed XO2 in a Cambridge CD6 one or two years ago.
I was able to decipher installation with the help of LC Audio web page...
Ordered LC Audio XO3 and 220 power supply for my Rega Planet.
It came with no instructions.
I was on my own.
Nothing on LC Audio's web site...
E-mailed LC Audio to no avail...
They never bothered to reply...
Kevin could not help...
Not shure where to hook up power supply...so i sent the player to Parts Connexion who did an excellent job installing it for me. I had it within a week.
The clock cost me 500$.
Never again!
Twangster
I installed XO2 in a Cambridge CD6 one or two years ago.
I was able to decipher installation with the help of LC Audio web page...
Ordered LC Audio XO3 and 220 power supply for my Rega Planet.
It came with no instructions.
I was on my own.
Nothing on LC Audio's web site...
E-mailed LC Audio to no avail...
They never bothered to reply...
Kevin could not help...
Not shure where to hook up power supply...so i sent the player to Parts Connexion who did an excellent job installing it for me. I had it within a week.
The clock cost me 500$.
Never again!
Twangster
Asen: Cu plecere
They are very good for audio (Vishay MMA0204 series) These are the best SMD resistors for low 3rd harmonic distortion available. And low noise too ... 🙂
They are very good for audio (Vishay MMA0204 series) These are the best SMD resistors for low 3rd harmonic distortion available. And low noise too ... 🙂
I don't think that he has to worry about many high-end companies "borrowing" his design.
You assume that they understand any of it.
Most don't. It is easy just to BS everyone that they do. Which is what most do.
The few that would "borow" it, would have to add more parts.
Lots more parts............
Jocko
You assume that they understand any of it.
Most don't. It is easy just to BS everyone that they do. Which is what most do.
The few that would "borow" it, would have to add more parts.
Lots more parts............
Jocko
Elso, Guido, next thing for you are series resonance oscillators, not so hard to design but the trouble is to get crystals, 99.999% of all crystals are for parallel mode. But.... it's not very expensive to order special crystals.
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