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Old 10th April 2011, 08:47 AM   #301
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Originally Posted by scott wurcer View Post
Working on it now, what's the time frame? I'm really planning to dump a magnum opus, serious stuff, fun stuff all oriented around something one could actually DIY (I hope). That's my one complaint about a couple of the articles in Vol. 1, they are so sophisticated that for the average reader they are informational only.
Hi Scott,

Looking forward to your Magnus Opus! Deadline should be before the holiday season; you can go on holiday, I'll work on the manuscripts

I believe most articles in Vol 1 have some direct practical use except possibly Bruno's piece. I try to keep a balance; for instance, Ian Heggluns article on square-law class A can be build by people interested in the technology, while the annexes give the calculations for efficiency and distortion for those who are not interested in building per se, but nevertheless are interested in the details. Personally I am not that interested in, say, the umpteenth 300B amp (unless it s really, really different) and I assume my readers aren't either.
I understand that with this policy Linear Audio will never be a mass publication but I wouldn't want that anyway.
Nevertheless, I am interested in what think about this, the level of content, and why/why not.
I'd appreciate feedback by PM.

jan
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Old 10th April 2011, 03:25 PM   #302
jam is offline jam  United States
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Jan,

Sorry I have not ordered volume 1 as yet but I will next week. Please keep up the good work

Best regards,

Jam
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Old 10th April 2011, 03:51 PM   #303
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Jan,

Sorry I have not ordered volume 1 as yet but I will next week. Please keep up the good work

Best regards,

Jam
I've kept one aside for you

jan
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Old 10th April 2011, 06:05 PM   #304
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Hi Scott,

Looking forward to your Magnus Opus!
Are you two doing that on purpose to annoy me? Opus is a 3rd declension neuter noun!
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Old 10th April 2011, 06:24 PM   #305
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Are you two doing that on purpose to annoy me? Opus is a 3rd declension neuter noun!
Well, in this context you could always pretend it's a singular accusative clause

jan
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Old 11th April 2011, 01:01 PM   #306
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Are you two doing that on purpose to annoy me? Opus is a 3rd declension neuter noun!
Would you prefer magna opera?
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Old 11th April 2011, 01:18 PM   #307
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Actually, to be really honest, I have a subfolder in my Inbox named "Magnus Opus" but so far it only contains mails from Joachim and his buddies

jan
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Old 11th April 2011, 07:43 PM   #308
sonidos is offline sonidos  United States
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To come back on topic:

What did you guys think of Bruno's article?

jan
Jan, I am working on a headphone amp which utilizes the LME49710. I headed straight to Bruno's article. I had used a 47k ohm resistor in the feedback loop. I had a notion that less was better. I tried a 60k ohm resistor to reduce feedback further but noticed a jump in DC offset.

So I went back and dropped in a 22k ohm resistor. Offset was fine so gave it a listen and I do not have testing equipment, but I perceived the performance to have improved to my ears.

Bruno's article encouraged me to fiddle with the feedback and I'm happier now for having done it.
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Old 2nd July 2011, 07:43 AM   #309
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Forgot to tell you. I received several letters commenting on articles in Linear Audio. I put them on-line, together with the author's reply, so you don't have to wait for the next volume to read those comments.
It's all here: Linear Audio | Letters .

Also, Nelson Pass' article The Arch Nemesis published in Vol 0 has been put on line for free download: Linear Audio | Online Resources .

Have fun!

jan didden
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Old 2nd July 2011, 10:10 AM   #310
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I see that the controversy I started about cathodynes in AX a few years ago continues today.
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