here is a 5v version on Ray's website plus loads of other mods for the CD63
http://home.quicknet.nl/qn/prive/ra.vdsteen/index_en.html
Andy
http://home.quicknet.nl/qn/prive/ra.vdsteen/index_en.html
Andy
Assyst1606 said:
poynton said:
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.
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
Randy
poynton said:
Hi Andy,
Thanks. I read that the clock need to be tuned with a 50ohm probe. How do I get a 50ohm probe??
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/showthread.php?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.
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
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/showthread.php?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.
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
Richard said:
Hi Richard,
Thanks. Just thinking where to get a 50ohm coax?? I only have in hand 75ohm.
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.
Have not connect it to the Kwak clock, hopefully it'll work just fine.
An externally hosted image should be here but it was not working when we last tested it.
Thanks for all the suggestion & advice.
Simple +- 12V psu
Hi Guys,
Here is the simple power supply I used as a pre-regulator for the Kwak clock. The capacitors before and after the Siemens common mode choke (cmc) are Rubycon ZL, with Rubycon XYA after the regulator. You can use the 100mA 78L12 TO-92 regulators as the current draw is low. I had a 2.39mH cmc on hand but most cmc's around that value are fine.
to answer a quote with a quote;
just measure at the wiper of the 2K pot (to ground) that goes to pin 3 of the AD8561.
Hi Guys,
Here is the simple power supply I used as a pre-regulator for the Kwak clock. The capacitors before and after the Siemens common mode choke (cmc) are Rubycon ZL, with Rubycon XYA after the regulator. You can use the 100mA 78L12 TO-92 regulators as the current draw is low. I had a 2.39mH cmc on hand but most cmc's around that value are fine.
to answer a quote with a quote;
just measure at the wiper of the 2K pot (to ground) that goes to pin 3 of the AD8561.
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