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Old 1st February 2011, 06:51 AM   #11
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Location: UK, Manchester
thanks again, singa

just found a few other clocks in the web:
- Burson
- JZ-1 CD/DVD Low Jitter Clock

what do you think about them? Burson, of course, is quite a decent one, though a bit pricey. The other, JZ-1, looks to me the same as the one on ebay for 40$, so I'm wandering is there any difference or possible gain in quality if you buy some not high-end clocks for 200$ and above?
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Old 1st February 2011, 08:13 AM   #12
singa is offline singa  Singapore
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Quote:
Originally Posted by dtses View Post
thanks again, singa

just found a few other clocks in the web:
- Burson
- JZ-1 CD/DVD Low Jitter Clock

what do you think about them? Burson, of course, is quite a decent one, though a bit pricey. The other, JZ-1, looks to me the same as the one on ebay for 40$, so I'm wandering is there any difference or possible gain in quality if you buy some not high-end clocks for 200$ and above?
Hi dtses,
To be frank, no.Burson mounts crystal ocsillator on sockets.
This is a business decision as you don't have to stock many units,simply
pluck in the customer's requirement, that saves on stocking.Theoretically
that's not recomended for high frequency circuits as it creates added capacitance and thus may interfere with circuit function if it is critical
enough.I don't know about the other two as I can't see very well.

The one that you have selected says the oscillator is a TCXO
(temperature compensated XO) but Burson and the other one does not
state as such and the markings on the top does not either so they are plain XO ,not as accurate relatively.The chinese one has more "audiophile" parts and a shielded cover which may not be critical as the XO is already in a metal can.It has also 3 ICs compared to one in the earlier choice.Which means that it will contribute more circuit noise plus the resistors and transistors all things being equal.

The date code on the chinese XO is made in 1998 and the earlier
one 2008 as far as I can see.Not that it's an issue but the knowledge that
it's relatively new gives you more confidence.Although the earlier choice
is $40 double that of the cheaper chinese one ,I bet my money on that one.

As for burson you can save the money and make a tube buffer stage
for the cd player like Mr.Lampizator. Singa
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Old 3rd February 2011, 07:43 AM   #13
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hello Singa,

now i'm pretty confident with that clock module many thanks for explanation and assistance!
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