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Simplistic Mosfet HV Shunt Regs
Simplistic Mosfet HV Shunt Regs
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Old 17th December 2012, 07:42 PM   #3641
merlin el mago is offline merlin el mago
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ECC81 mu-follower. BG rated 350VDC.

What BHC-Aerovox lytics do you use for HV?
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Old 17th December 2012, 07:46 PM   #3642
Salas is offline Salas  Greece
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Simplistic Mosfet HV Shunt Regs
I have ALS30A in my 6V6 line pre. But its some yrs ago, don't know if they make any better now.
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Old 17th December 2012, 07:56 PM   #3643
merlin el mago is offline merlin el mago
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For Itch I'm looking for 200-220uF 450-500VDC, do you remember where did you bought?
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Old 17th December 2012, 08:21 PM   #3644
Salas is offline Salas  Greece
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Simplistic Mosfet HV Shunt Regs
England, maybe Element 14. Farnell then.
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Old 17th December 2012, 08:23 PM   #3645
merlin el mago is offline merlin el mago
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Farnell haves better price than RS, thanks.
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Old 17th December 2012, 08:29 PM   #3646
roger57 is offline roger57  Canada
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Quote:
Originally Posted by merlin el mago View Post
Farnell haves better price than RS, thanks.
Depending on your budget...have you looked at Parts Connexion?

All Brands Electrolytic Capacitors

Pricey but good stuff, good service and they ship anywhere. I've dealt with them for the last 9 years.
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Old 17th December 2012, 09:49 PM   #3647
merlin el mago is offline merlin el mago
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Yes thanks, I ordered a lot of components.
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Old 19th December 2012, 02:41 PM   #3648
king4joy is offline king4joy  Hong Kong
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It will have impact only on series drop resistors or coils internal resistance. If you had calculated Vo for strong bleeders, recalculate DCin including two CCS and bleeders total for drop on series elements mentioned.
If I understand correctly, I only have 2 // 40 Hy chokes in series in my PSU...and now I have gotten rid of my CCS's and am using //12K = 6K quality resistor to load each channel....to get a more lively music with no hummmmms.....SSHV2 with CCS loading, to my experience, makes the music dull....and not lively...

I have just finished fitting the 2 boards in the box after a bit of thinking and changing around....(I will supply photos later...)

I start to individually test each board...and I find there is difference in performance between the 2 boards I have....

Board #1...the board I have been using before...and before testing my new board....I connected it to the PSU...and a 10K dummy load (then a //10K = 5K) load to the board.....and I set the TP to be 33mA....and the max V out from the board is 210V...and when change to 5K dummy load for the board, the max I can get is about 114V...input to the board = 288V

And when I disconnect board#1 and connect board#2...the LED become brighter....set the TP to be 33mA the same as board#1.....but...the max I get with 10K dummy = 276V....and with 5K dummy = 145V max....input to board#2 remains the same as 288V.....

Which part do you think that I need to change to make the 2 boards behave more the same...the same please??

Nothing become too hot to touch during this brief testing (15-20 minutes).....
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Old 19th December 2012, 03:01 PM   #3649
Salas is offline Salas  Greece
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Simplistic Mosfet HV Shunt Regs
Match Idss of 2SK117 between boards.
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Old 19th December 2012, 03:42 PM   #3650
king4joy is offline king4joy  Hong Kong
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How do I do that please?? (I need to buy more 2SK117)...

And then what would be the best 2SK117 to use??

On the other hand, if I use the 2 boards as they are....what are the negatives??

Thankyou, and cheers....
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