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Old 21st November 2006, 12:24 PM   #11
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Default Re: Re: Jung Super Regulator

Quote:
Originally posted by janneman



And please, don't compare a high performance circuit like the Jung reg with run-of-the-mill Lambda or Kepco. There is really no comparison!

Jan Didden
Excuse me! I don't understand what do you mean by no comparison ? I do know US Army, Air Force, Navy, uses The above mentioned PSU manufacturer. But I never heard of Jung regulator they been employed.

Is there any Jung reg. sell on market? I really want to buy one for research, that's our interest!

We are dig into any technique that are claimed " high performance and high technique ". Please do let us know and guide us to get one.



BIGEYES AND SMASH LOOKING FOR A JUNG REG.
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Old 21st November 2006, 12:37 PM   #12
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Default Re: Re: Re: Jung Super Regulator

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Originally posted by mitwrong


Excuse me! I don't understand what do you mean by no comparison ? I do know US Army, Air Force, Navy, uses The above mentioned PSU manufacturer. But I never heard of Jung regulator they been employed.

Is there any Jung reg. sell on market? I really want to buy one for research, that's our interest!

We are dig into any technique that are claimed " high performance and high technique ". Please do let us know and guide us to get one.



BIGEYES AND SMASH LOOKING FOR A JUNG REG.

The supplies you mentioned are orders of magnitude worse in specs that are important to audio, that is what I mean by no comparison. I am familiar with military hardware, and I am sure a Lambda will continue to work at 105 degrees Celcius as well as survive a plane crash. Surely that is not the first priority you look for in low level audio supplies?

Many people on this forum offer Jung-type supplies, just do a search. The whole design has been extensively discussed on this forum and published in Audio Amateur, see www.audioxpress.com for more info.

Mr Jung used to be a contributor at this forum. One of the reasons he left was becaus people were thougthlessly (sp?) throwing around 'improvements' to his design without even understanding how it works.


Jan Didden
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Old 21st November 2006, 02:05 PM   #13
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some of the things which were learned about the super reg were published in TAA over 10 years ago -- that the AD797 might not have been the best opamp for the design, a reader with start-up problems, curing oscillation -- the one thing stressed again and again by the authors was the need for careful layout.

i had the happy occasion to build a copy of the noise measurement apparatus which was described in TAA (the TAA design used SSM2017s which are now "unobtanium"). This lead to other experiments in noise quantification, and my realization that noise, EMI, RFI were not phantoms but real gremlins in the audio chain, and this lead to a modded Adcom GFP-565 which is in constant use.

As I recall, Jan was most painstaking in making the impedance measurements of the design.

Old Colony sound sells the boards for the original design -- and TAA tells how to update them for the most recent design. the design is also discussed by WJ in EDN and is in their archives. Regrettably, TAA has not yet put out a compendium CD for their various publications of the 1980's and 1990's.
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Old 21st November 2006, 02:32 PM   #14
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Jan:

Sorry for my misunderstanding on the Jung reg. In Asia, we only get in touch with famous brands, and dig into it. we, the first time heard about the Jung reg. that's why argument raise up.

On the other hand, we really want to research on this reg. Please tell us more about it. Thanks, anyway.

Kindly, guide us to the web, or net where these information could be obtain. In our side, may be our info. left behind.

Anyway, thank you very much.

WE ARE HUMBLE TO LEARN NEW TECHNIQUE
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Old 21st November 2006, 03:20 PM   #15
jcx is offline jcx  United States
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http://waltjung.org/Regs.html
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Old 21st November 2006, 04:29 PM   #16
AndrewT is offline AndrewT  Scotland
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sounds like another circuit is about to be pirated and sold on for a profit.
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Old 21st November 2006, 05:29 PM   #17
jcx is offline jcx  United States
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ah yes, the ongoing "controversy"

can a ~20 year old published circuit which was never patented be "stolen"

which circuit itself could be considered as derivative of the vacuum tube "super regulator" printed in Horn&Horn nearly 50 yrs ago

If the authors wish to keep their names off of someone’s product they do have some rights, but not to the circuit itself at this point

What part of “public domain” do you not understand?

are Hugh Dean, Rod Elliot "pirates" for profiting from kits - their circuits certainly look like the "prior art" to me, just how many products out there truly have unique, enforceable IP, and does society benefit any less because some can profit filling needs with known technology?

no need to repeat this thread:

http://www.diyaudio.com/forums/showt...428#post243428
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Old 21st November 2006, 06:12 PM   #18
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Someone (forgot who) gave me this info, from a book 1977, Mr. Kaneda. Anyone seen any older info?
Click the image to open in full size.

Compare the schematic, it's almost identical (in general) to the Jung Regulator with the exception of newer and MUCH better parts. Mr. Jung has also changed some critical design elements. The sharp eyed person notices also that the transistor at the opamp output was later added as an improvement in the late articles. The trick with this regulator is to choose the right parts and make the pcb pattern otpimal and that is more important if you want a fast regulator.
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Old 21st November 2006, 06:48 PM   #19
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Quote:
Originally posted by mitwrong
WE ARE HUMBLE TO LEARN NEW TECHNIQUE

Nobody knows everything, but that means we need to do our homework before venturing opinions on merits of a design.
I told you in an earlier post where the information can be found. Use the forum's search options.


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Old 21st November 2006, 11:55 PM   #20
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Quote:
Originally posted by AndrewT
sounds like another circuit is about to be pirated and sold on for a profit.

[QUOTE]Originally posted by jcx
[B]ah yes, the ongoing "controversy"

can a ~20 year old published circuit which was never patented be "stolen"

Hey, Gents:

In this world, not be everybody loves money, or like to steal design.

We are people just like to research on new things, a group of people like audio, psu, auto, mobile,------ etc.

We are not on business, NOTHING TO SELL, we do research on our interest, not to gain any profit out of our research. we have all types of circuitry and design, and we kept them just for our references, and we will never disclose these info to other or public, when we finished one research, the related info will be destroyed. So don't worry about we will steal other design for profit. Thats the way what we do.

If one doesn't want his or her design or schematic open to public, or let other people to know or make use of, please kept them in a safe, don't post on public!



MAY GOD BLESSED THOSE DESIGN AND SCHEMATIC
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