Threshold NS10 Lineamp PCB - Page 57 - diyAudio
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Old 15th January 2009, 02:08 AM   #561
Ryssen is offline Ryssen  Sweden
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Is there a BOM for the NS10 and Toole Reg?Ben readind the threa but couldn´t find any.
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Old 27th January 2009, 09:41 PM   #562
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Default Post from the Toolereg GB thread

ANNOUNCEMENT TO ALL,

The Toolereg team has decided to put this GB on HOLD for a very good reason and to the benefit of all who signed in for this shunt regulator boards.

Some time ago we have asked Jan Didden who is one of the more experienced members of DIYA regarding voltage regulators to review the technical aspect of this regulator and he has kindly accepted to do this in his own lab. To this end, Steen has kindly sent to Jan the compact prototypes for him to do this work and as far as we know Jan has already started to do so.

So the boards might need some layout changes derived from Jan’s work so this has been the reason to call this GB on HOLD for a while.

The technical discussion will be held on the original thread by Cetoole on the SS forum.
Bipolar discrete shunt regulators

In the meanwhile you may continue to add boards to the Wiki.

The Toolereg Team, and if I may speak for all others on this thread, greatly appreciates Jan Didden’s good will to help us refine this excellent shunt regulator designed by Colin Toole,

Cheers,
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Old 28th January 2009, 12:28 AM   #563
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That's awesome guys. Thanks to Jan for checking this out for us. Better to wait a bit than have to make changes after they're installed.
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Old 28th January 2009, 01:47 AM   #564
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Mongo views this as a positive bias...

Thanks, Jan!
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Old 11th August 2009, 12:48 AM   #565
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I just received some boards that I drew up based on the latest iteration of Colin's shuntreg design, and a simple CLC pre circuit. I'm looking for a few people to try these out and make comments on them and depending on the results, perhaps this GB might get resurrected If you're interested, please contact me and we can work the details out. The more fancy the measurement equipment you have and willingness to get cracking on this, the better. I'm willing to ship worldwide and would like to recoup a tiny bit of my investment so far.

Click the image to open in full size.

Bigger pic here:

http://picasaweb.google.com/lh/photo...eat=directlink
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Old 11th August 2009, 01:39 PM   #566
jims is offline jims  United States
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Default Boards

Hi Luvdunhill

I would like to try 4 boards, two for the Salas jfet riaa preamp and 2 for a Buffalo dac. PM me with details.

Thanks

JimS
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Old 11th August 2009, 03:44 PM   #567
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Default Re: Boards

Quote:
Originally posted by jims
Hi Luvdunhill

I would like to try 4 boards, two for the Salas jfet riaa preamp and 2 for a Buffalo dac. PM me with details.

Thanks

JimS
Just replied, so we have at least one victim so far.

Any other takers?
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Old 11th August 2009, 04:01 PM   #568
Tea-Bag is offline Tea-Bag  United States
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I could use 1 for trying as a nice suppy for a B1.
I am still trying to get use of a scope, so I can't promise any detailed measurements beyond that a common DVM provides.
I also can't promise I will get it together quickly.
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Old 11th August 2009, 04:06 PM   #569
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Quote:
Originally posted by Tea-Bag
I could use 1 for trying as a nice suppy for a B1.
I am still trying to get use of a scope, so I can't promise any detailed measurements beyond that a common DVM provides.
I also can't promise I will get it together quickly.
heh. well then

'Scopes and run of the mill DVMs are more or less useless in this case, as we're talking about nV. There are a lot of threads around about measuring these voltages if you're really interested. I personally use one of these guys:

http://www.tangentsoft.net/elec/lnmp/

... and occasionally scour Ebay for a nice precision AC volt meters, but honestly am not quite sure what to look for
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Old 11th August 2009, 04:10 PM   #570
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I use a spendy Keithley system at work to measure contact resistance in the tens of MOhm, with an applied voltage of 3mV. Is that good enough?
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