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Old 20th January 2013, 10:21 PM   #41
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Originally Posted by Leakstereo20 View Post

I am on page 6 out of 14 pages with the translation. It takes quite some time. The manual for "The End MK 3.1" and "Millennium" was never translated to English in Denmark as far as I know.
Hi Kim,

This is a great info for all who like to taste the sound of this Amp.
Thank You for great DIY spirit and will.

Andreas
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Old 21st January 2013, 12:17 AM   #42
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I own a LC Audio Patriot 100 amp (weighing about 100 lbs) that probably has much in common with the LC Audio Millenium amp. I use my amp for driving Eton ER-4 tweeters and although it´s possible to run the amp in 2*100 W class A I seldom do this, but instead use the class A reduce mode that limits class A operation to about 2*15 watt then class AB.

One thing is the low input impedance as I have planned to use some good teflon capacitors to the input for blocking low frequences that can make the amp clip. The caps have to be relatively high in capacitance and four of them (balanced input) will cost a lot.

Found this and hopefully it´s not an illegal address ( have a look at page 8 for the Millenium schematic). http://www.diyaudio.ru/filestore/Mil...-_cookbook.pdf
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Old 21st January 2013, 12:46 AM   #43
kad is offline kad  Canada
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Woah, I love this cookbook.

Interestingly, this design is based on SWTPC Daniel Meyer's fully complementary from input to output amplifier circuitry (minus the feedback), which also happens to be my avatar...

Methinks of an op-amp circuitry similarity concerning this Millenium?

From Radio Electronics December 1973, I built (4) of those awesome sounding amplifiers. I regret having sold them...

This is the schematic:
http://www.swtpc.com/mholley/RadioEl..._1973_pg44.jpg
Click the image to open in full size.

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Old 21st January 2013, 01:16 AM   #44
kad is offline kad  Canada
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Thumbs up Thanks tiefbassuebertr for all the info, this should be a sticky!

Quote:
Originally Posted by tiefbassuebertr View Post
check out this thread:
Better Audio with or without NFB (Negative Feedback) - for me the wrong Question
also this threads and URLs perhaps are of interest:
URL collection of Totem Pole and CSPP (Single Ended related) Solid State Output Stage
TIP3055/2N3055 based power amps

Output Buffer Stages
Help with this amp (Harman's T-Circuit: Post #151)
Replacement transistors in Leach Superamp. Help needed!
Baxandall Super Pair (CFP, Sziklai-Darlington)
Edwin 20 watt (Elektor 1970 - May)
Quad 303 triple cascade
four transistor emitter follower (diamond buffer) as power output stage?
Best topology for no-feedback ClassAB buffer ?
Hot Follower 99
Power follower 99c Vs Zen
Jfet audio buffer
Anyone built this mosfet follower (or similar)?
Buffer Amp
Buffer Power amp. - diyAudio

Quasi complementary concepts
How to identify a quasi-complementary amplifier?
Brother of Quasi
Another quasi-complementary design
quasi-complementary output
http://www.diyaudio.com/forums/solid...begginers.html
Crazy Clipping Behavior Quasi Complementary MOSFET Citation 12 TAA Book
NMOS Amplifier 900
NMOS Amplifier - diyAudio
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N-Channel mosfet amplifier schematic needed - diyAudio
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Push-Pull using only N-Channel MOSFETs - diyAudio
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N-channel Problem HELPPPPPP - diyAudio
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Power amp under development
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It's cheap, it's N, it's dirty, it's.... The CIRCLOMOS!!!
Black devil #47
Your opinion about this schematics?
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only N-Channel/NPN BjT's
http://www.diyaudio.com/forums/attac...amp=1137723117
von
has anyone heard of this? composite collector load..... - diyAudio
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Only N-Channel MOSFETs (NMOS); better Audio from non complements by Audio Power? - diyAudio
Best topology for no-feedback ClassAB buffer ?

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current conveyors
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how does a LEF (load effect free) amplifier work?

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Gamut D200 clone !!!
"Push-Pull" for push und "Push-Pull" for pull (like Gamnut) - whats the right name?

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How to drive 8 pairs of MJL21193/94?
MOSFET Output
Improving the linearity of an N-ch MOSFET output stage 3524 Starter: X-PRO, Entwickler vom A3i
Improving the linearity of an N-ch MOSFET output stage - diyAudio
Best MOSFET for output stages (page 11, also circlotron)

Error Correction
Linx Nebula Schematic - diyAudio error correction amp
Bob Cordell Interview: Error Correction
Re: New error correction amp
New error correction amp.
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MJR
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CFP For The VAS

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http://www.diyaudio.com/forums/attac...amp=1222759259 (folded cascode)
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Four for SuSy? - Page 2 - diyAudio
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http://www.diyaudio.com/forums/attac...amp=1249756796

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:: Audiotek 69 - [Technics SE-A1?] :: - diyAudio
http://www.diyaudio.com/forums/attac...amp=1070435722 Technics SE-A1, AA
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New-Class-A ? (whats it mean) - diyAudio (New Class A)
http://www.geocities.com/technicshifi/SVI2004A.JPG (SVI2004A)
http://www.diyaudio.com/forums/attac...amp=1082105786 (SVI2004A inside)
http://www.diyaudio.com/forums/attac...amp=1231499564 (TechnicsOutput BUF)
Technics Class A Bias Circuits

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Class XD....
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Class XD.... - diyAudio (Diskussion)
class XD - Doug Self is at it again - diyAudio (Diskussion, Quelle für URL)

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High Power Class G amplifier
NFB
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Various
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old transistor data
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IGBT amplifiers
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(Clausen's Millenium Amp "The End")
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REAL AMP (what is the best Amp for big that torodial transformer)
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BF862 Preamp
VSOP-Amp
VSOP amp - diyAudio

(Unless it already is, I'm a noobie here since I only joined yesterday. But I learn fast! Yet I've been at it all my life )

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Old 22nd January 2013, 02:50 AM   #45
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Quote:
Originally Posted by The golden mean View Post
I own a LC Audio Patriot 100 amp (weighing about 100 lbs) that probably has much in common with the LC Audio Millenium amp. I use my amp for driving Eton ER-4 tweeters and although it´s possible to run the amp in 2*100 W class A I seldom do this, but instead use the class A reduce mode that limits class A operation to about 2*15 watt then class AB.
@ The golden mean

It looks that Your amplifier is ''Green'' oriented in ''reduce mode'' very nice feature indeed,
I'm curious about the lowest ohmic ability of the amps You mention ? can the Patriot continuously drive 0,5 - 1 Ohm constant load ?

Nicest regard,

Andreas
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Old 23rd January 2013, 06:55 PM   #46
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Quote:
Originally Posted by Smiley 09 View Post
Hi Kim,

This is a great info for all who like to taste the sound of this Amp.
Thank You for great DIY spirit and will.

Andreas
Hi Andreas,

I am waiting for permission to show the manual, but unfortunately the complete PCB layout is missing.

The circuit plus PCB component locations is described.

I don't think the exact layout has ever been published, so there should be some layout work left for the dark winter days.

rgds. Kim
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Old 23rd January 2013, 07:23 PM   #47
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Quote:
Originally Posted by kad View Post
Methinks of an op-amp circuitry similarity concerning this Millenium?

From Radio Electronics December 1973, I built (4) of those awesome sounding amplifiers. I regret having sold them...

Well, with all the published schematics it's hard to find circuit details not used before.

The one from Radio Electronics looks a bit like the Leach double superamp.

One of the The End mk.II amps made by me used the quite low ft MJ4502/802 from Motorola....I did try with those 90V (45dc-0-45dc max rails)old power transistors just to check if something audible was missing....I could not hear any loss whatsoever.
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Old 23rd January 2013, 10:23 PM   #48
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Quote:
Originally Posted by Leakstereo20 View Post

I don't think the exact layout has ever been published, so there should be some layout work left for the dark winter days.

rgds. Kim
Hello Kim,

Lot's of those late night, quite hours, currently availl...

Nice regards,

Andreas
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Old 24th January 2013, 08:51 AM   #49
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Quote:
Originally Posted by Smiley 09 View Post
Hello Kim,

Lot's of those late night, quite hours, currently availl...

Nice regards,

Andreas
Wake up Andreas and check your gmail

rdgs.
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Old 24th January 2013, 11:13 AM   #50
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Default Great news for analog fans

I have just received written permission from L.C.Audio and the owner of the schematic to show the manual.
I have translated the danish manual to english for the fabulous well sounding :

"The Millennium XP" DC amplifier.

Find the link for Millennium XP on my amateur site: TUBEAMP

Secondly I have oploaded the 1995 Danish layout for "The End mk.3.1". The link for the mk.3.1 version at my site above.

Finally the question:

I asked the owner of L.C.Audio whether he would consider to produce the PCB and component kit for the 3.1 and the Millennium once again. The owner said that the minimum order for him was 100 pcs. of the PCB either for the 3.1 or the Millennium.
L.C. Audio has a very good reputation, but the company is not very large and do not have the economy to produce what ever costumers and I asks for.
If we could gather several persons who could have interest, and would like to buy the PCB's for either the 3.1 (which uses standard components) or the PCB for the Millennium XP ( which uses SMD components) , L.C. Audio would be willing to produce the kit's once more.

I have a responce gmail which is: kim.jul.hansen2012@gmail.com

When I know the approx. price for the kit I shall return.

Rgds. Kim

Ps. I am old fashioned ....I like "The End mk.3.1" ....look at tubeamp to find the 3.1
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