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Old 29th November 2010, 02:08 PM   #451
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Quote:
Originally Posted by gmant123 View Post
Hi:

Any kits left?

Please Letme know.
Do you like my kit??
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Old 29th November 2010, 11:28 PM   #452
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Yes, it is available for purchase?
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Old 30th November 2010, 12:16 AM   #453
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Quote:
Originally Posted by gmant123 View Post

Yes, it is available for purchase?
hi! you can choice it in my web:
http://quanghao.com/product.php?id_product=57
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Old 18th January 2011, 08:00 PM   #454
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Originally Posted by quanghao View Post
hi! you can choice it in my web:
http://quanghao.com/product.php?id_product=57
On you website I can't purchase the sshv pcbs because shipping is not availaible for my country, Italy. How can I do?
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Old 19th January 2011, 11:26 AM   #455
noizas is offline noizas  Lithuania
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Originally Posted by markenvy View Post
On you website I can't purchase the sshv pcbs because shipping is not availaible for my country, Italy. How can I do?
Same problem: Lithuania is also outside the possible shipping destinations.
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Old 19th April 2012, 06:47 PM   #456
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Hi Quanghao,

Sorry for resurrecting this old thread, but I finally got around completing the SSHV1 for the D3A phono (i was using the Janus shunt before to power the D3A phono board). I need some help with the bring up.



I'm not getting over 165V on B+ when I power the SSHV with a variac.. When I turn the variac slowly, it voltage continues to increase until AC voltage is at 90V (Vin is about 220V), but does not continue to rise after that. The IRF9610 becomes very hot after that point (even with load resistor). When I vary the trimmer pot, I get the voltage variation on Vout, but I get only a max of 165V.

FYI, I'm using Red LEDs instead of the green ones - is that going to matter in this case ?

I also need some general tips for bringing up this regulator board.

Thanks,
nikhil
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Old 20th April 2012, 07:50 AM   #457
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Problem solved - it was wrong value of resistor in R4

Quote:
Originally Posted by nikhilji View Post
Hi Quanghao,

Sorry for resurrecting this old thread, but I finally got around completing the SSHV1 for the D3A phono (i was using the Janus shunt before to power the D3A phono board). I need some help with the bring up.



I'm not getting over 165V on B+ when I power the SSHV with a variac.. When I turn the variac slowly, it voltage continues to increase until AC voltage is at 90V (Vin is about 220V), but does not continue to rise after that. The IRF9610 becomes very hot after that point (even with load resistor). When I vary the trimmer pot, I get the voltage variation on Vout, but I get only a max of 165V.

FYI, I'm using Red LEDs instead of the green ones - is that going to matter in this case ?

I also need some general tips for bringing up this regulator board.

Thanks,
nikhil
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Old 23rd April 2012, 07:40 AM   #458
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Hi nikhilji
yes use green led, and change Irf 9610 ,for CCS

thanks
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Old 4th May 2012, 11:13 PM   #459
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Quote:
Originally Posted by quanghao View Post
Hi nikhilji
yes use green led, and change Irf 9610 ,for CCS

thanks
Thanks Quanqhao! Finally got the right voltages for B+ and the SSHV is working as expected and no overheating of heatsinks. I have both the SSHV and D3A phono board in one single chassis using a R-Core power transformer and shielded hookup wire. Needless to say, the sounds is clear and detailed with no low-frequency hum ! I'm impressed.
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Old 6th May 2012, 09:41 PM   #460
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Quote:
Originally Posted by nikhilji View Post
Thanks Quanqhao! Finally got the right voltages for B+ and the SSHV is working as expected and no overheating of heatsinks. I have both the SSHV and D3A phono board in one single chassis using a R-Core power transformer and shielded hookup wire. Needless to say, the sounds is clear and detailed with no low-frequency hum ! I'm impressed.
I'm enjoying the music coming out from this phono stage. Thanks to Quanghao, Salas and Andrea. Truly a global collaborative effort for the enjoyment of the diyaudio community.


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