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Old 5th April 2013, 01:41 PM   #3851
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Well done Alex, very neat work, thanks to share
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Old 5th April 2013, 01:57 PM   #3852
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Quote:
Originally Posted by Alex M View Post
As promised, here is a photo of the two SSHV2 regulators installed in my RTP3.

There is a definite advance in stability and presence over the (probably malfunctioning) HPHV regs they replaced.

Alex
Hi Alex,
What is HPHV?
What capacitors did you use for the Salas Shunt?
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Old 5th April 2013, 02:07 PM   #3853
iko is offline iko  Canada
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Has anyone noticed an audible difference using and not using sense/force connections?
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Old 5th April 2013, 04:53 PM   #3854
Alex M is offline Alex M  United Kingdom
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Originally Posted by Joshua_G View Post
Hi Alex,
What is HPHV?
What capacitors did you use for the Salas Shunt?
HPHV is Emile Sprenger's shunt reg. I would post a link to it, but Emile took his pages on it down two or three years ago. If anyone is interested I can send the user manual privately. I suspect that on a professionally made PCB this sophisticated and complex circuit should work very well, but I found mine were unstable and unreliable. This is why I hankered after a much simpler and more robust regulator circuit, and settled on the SSHV2.

The caps are SCR 630V polypropylenes (which I also used in the PSU).

Alex
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Old 5th April 2013, 05:12 PM   #3855
Salas is offline Salas  Greece
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Alex, very nice. Thanks for the update. You followed the parts layout of the printed board I saw. Is the pre-amp a Vacuum State original construction or just follows it?
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Old 5th April 2013, 05:28 PM   #3856
Alex M is offline Alex M  United Kingdom
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Originally Posted by Salas View Post
Alex, very nice. Thanks for the update. You followed the parts layout of the printed board I saw. Is the pre-amp a Vacuum State original construction or just follows it?
Thanks!

Yes, the RTP3 is my own build, but (as with my version of your reg board) a close copy of the "real thing".

Alex
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Old 5th April 2013, 05:32 PM   #3857
Salas is offline Salas  Greece
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Very well documented build page. Congrats.
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Old 6th April 2013, 08:35 AM   #3858
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Originally Posted by iko View Post
Has anyone noticed an audible difference using and not using sense/force connections?
Long distances without sense/force poor sound, short distances using or not using sense/force good sound.
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Old 6th April 2013, 09:18 AM   #3859
AndrewT is offline AndrewT  Scotland
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Long distances defeat the main advantage of regulated supplies, namely low output impedance.
Long distances must have high impedance.

To get the benefit of regulated supplies the regulator should be right next to the client circuit.

The higher the current slew rates the worse this problem becomes.
At very high current slew rates, using regulators on long distance leadouts is a waste of resources.
Remote sensing does not solve long distance powering.
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regards Andrew T.
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Old 6th April 2013, 09:40 AM   #3860
stajo is offline stajo  Sweden
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Long and short is pretty relative terms. What are we talking about here?
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