Kwak clock not working - pls advise

[poynton]

here is a 5v version on Ray's website plus loads of other mods for the CD63

http://home.quicknet.nl/qn/prive/ra..../index_en.html



Andy

[QSerraTico_Tico]

Originally posted by poynton
here is a 5v version on Ray's website plus loads of other mods for the CD63

http://home.quicknet.nl/qn/prive/ra..../index_en.html



Andy

Very bad supply!

[QSerraTico_Tico]

Originally posted by Assyst1606
Thanks for the comment.
I don't quite understand the single 5V supply Kwak clock version. There are 2 output (pin 7 & 8).
Anyway i don't think i'll be building one unless i have another CD player. The current one seems good, more detail, less harsh & improve bass extension.

Originally posted by poynton
here is a 5v version on Ray's website plus loads of other mods for the CD63

http://home.quicknet.nl/qn/prive/ra..../index_en.html



Andy

You can take either pin 7 or pin 8 as output!
Elso had single supply clock till version 7 but dual supply sounded slightly better.

[randytsuch]

I remember reading a post by Elso awhile ago, probably here somewhere, that his clock sounds better if you feed it with an unregulated supply.

Randy

[fossil2k]

Originally posted by poynton
here is a 5v version on Ray's website plus loads of other mods for the CD63

http://home.quicknet.nl/qn/prive/ra..../index_en.html



Andy

Hi Andy,

Thanks. I read that the clock need to be tuned with a 50ohm probe. How do I get a 50ohm probe??

[Richard]

Hi Fossil2k,

In the link below Elso posted the zip file for his version 7 Kwak clock, it includes how to set it up.

http://www.diyaudio.com/forums/showt...?postid=199928

Thanks. I read that the clock need to be tuned with a 50ohm probe. How do I get a 50ohm probe??

Elso also described this in the supporting literature. Just use a 50 ohm coaxial cable and terminate it with a 50ohm resistor from conductor to shield at the scope end.

I remember reading a post by Elso awhile ago, probably here somewhere, that his clock sounds better if you feed it with an unregulated supply.

Randy, I used both and found that a pre regulated supply (before the TL431 shunt regulators on the clock) sounder better. If you try this route use a separate transformer to power just the clock and wind the mains cable for this transformer around a ferrite toroid a couple of times, but try both arrangements to make up your own mind.

Rich

[Assyst1606]

I don't have a probe so what i did was adj the tune pot from +0.5 to +0.6V.

[fossil2k]

Originally posted by Richard
Hi Fossil2k,

In the link below Elso posted the zip file for his version 7 Kwak clock, it includes how to set it up.

http://www.diyaudio.com/forums/showt...?postid=199928



Elso also described this in the supporting literature. Just use a 50 ohm coaxial cable and terminate it with a 50ohm resistor from conductor to shield at the scope end.


Rich

Hi Richard,

Thanks. Just thinking where to get a 50ohm coax?? I only have in hand 75ohm.

[QSerraTico_Tico]

Originally posted by fossil2k


Hi Richard,

Thanks. Just thinking where to get a 50ohm coax?? I only have in hand 75ohm.

Then use the 75-Ohm cable with 75-Ohm termination resistor!

[Assyst1606]

Found this circuit on the web. Have DIY but without installing the LEDs. And also using 78L12 & 79L12 to limit the max current to 1A.
Have not connect it to the Kwak clock, hopefully it'll work just fine.

Thanks for all the suggestion & advice.