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Old 21st December 2012, 09:29 PM   #221
UV101 is offline UV101  England
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My boards have arrived

Many thanks
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Old 21st December 2012, 10:09 PM   #222
WAR415 is offline WAR415  United States
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I'm in, I don't want to miss out this time. Are the kits available too!
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Old 24th December 2012, 04:21 PM   #223
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My boarjds have arrived

Thanks
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Old 28th December 2012, 01:57 AM   #224
yyzz is offline yyzz  Taiwan
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My boards arrived just now.
Thanks a lot
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Old 28th December 2012, 08:22 AM   #225
PsykoK is offline PsykoK  France
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Hi,

Is there any kit or board still available?


Alex
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Old 30th December 2012, 09:17 PM   #226
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hi there

beautiful work - proper value for once instead of multi 100'ssss for a clock!!
i have a sony runs at 45mhz on the schmatic, if this is not possible i can source my own

i would like an ac kit if possible if not a pcb if you've still got any im in england

thanks
james
* possible third group buy going up - haha *
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Old 31st December 2012, 02:25 PM   #227
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Hi Anton,
I received my package. Thanks.
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Old 2nd January 2013, 08:45 AM   #228
amc184 is offline amc184  New Zealand
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Hi All,

I'm back from holiday, had a great time. I hope everyone else enjoyed the holiday break.

I still have plenty of PCBs, but there are no kits left. If you'd like some PCBs, please PM me how many and which country you live in, and I'll get back to you with a total cost.

@glowing vinyl: Some Sony players do use a 1024fs clock (45.1584MHz). The crystals for this value are harder to get, but there is the option of using the original if it's a standard HC49 crystal. What player are you modifying?

Anton
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Old 2nd January 2013, 01:21 PM   #229
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Won't the 45M be 3rd overtone, thus requiring some antiresonant inductance at it's 1st overtone mode in the circuit?
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Old 2nd January 2013, 09:17 PM   #230
amc184 is offline amc184  New Zealand
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That's a perfectly valid point. Many crystals over 30MHz are third overtone, but as far as I know most of the Sony players using a 1024fs clock use a fundamental mode oscillator. That's why I asked glowing vinyl which particular player he's working on. I've attached an example, from a Sony CDP-X5000, a fairly typical Sony XO working in fundamental mode.

For those out there who are wondering what third overtone is all about, it's a different operating mode. A crystal operated in third overtone will vibrate roughly (not exactly) three times faster than when it operates in its fundamental mode. Third overtone crystals are the same as fundamental ones, but are cut to vibrate at a particular frequency when operated in their third overtone mode, and marked with their third overtone frequency.
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File Type: jpg Sony CDPX5000 XO.jpg (17.3 KB, 146 views)
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