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Old 17th January 2002, 04:51 PM   #21
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Michel,
What to one man are 'thought-provoking clues' may seem to others to be shameless self-promotion...
If you have nothing useful to say (and, yes, I do understand about publishing schedules, I've been an author for about fifteen years now), please desist. It's the polite thing to do, lest someone get the idea that you're chest-thumping. If your ideas are truly all that revolutionary, I'm certain someone will figure it out for themselves when the article hits the stands. You don't need to beat them over the head with it in the meantime.

Grey
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Old 17th January 2002, 05:59 PM   #22
Geoff is offline Geoff  United Kingdom
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Grey, you've beaten me to it though you have been a little more polite than I would have been.

I would add that most people join this forum to either learn, exchange ideas with other like-minded people, or to help newcomers to this hobby by passing on their knowledge and experience. From the tone of Michel's posts to date and his admitted intention when starting this thread, it would appear that he has his own agenda, part of which is self-publicity.

There is no place for this on the forum, anymore than we want manufacturers and suppliers (anonymous or not) pushing their own products for gain. The help given by NP and other designers is, of course, much appreciated.

Geoff
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Old 17th January 2002, 07:24 PM   #23
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Default Civility

These are the most civil forums that I have belonged to.
As you know there is some real nasty ones out there.
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Old 17th January 2002, 07:53 PM   #24
grataku is offline grataku  United States
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So Michel,
how is it again that you used the fourth pin in the transistor?
This thread should be filed together with the one about power cable burn in.
How about a new title: "how to burn in a wire with gain".
Where are the moderators when you need them?
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Old 17th January 2002, 08:43 PM   #25
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Current mirrored folded cascode, huh?

Does it look anything like this?
Attached Images
File Type: png fldcas.png (1.5 KB, 388 views)
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Old 17th January 2002, 11:20 PM   #26
sonnya is offline sonnya  Denmark
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Use the "attach file" in the bottom of the "Post Reply" page.

Still ... If you have to be quiet until the publication .. Then do it for you own "Safety". Not to get in problems with Electronics World!

Sonny
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Old 18th January 2002, 01:21 AM   #27
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Default fldcas.bmp

This is an interesting circuit -- I think I saw a bipolar version of it in a schematic by Stocchino (sp?) in Electronics World a few years ago. When I modeled it in Workbench using MOSFETs, the distortion was extremely low, as you might expect. However, it had a rather nasty turn-off glitch at clipping, which I tried to get rid of using a HF bypass cap without success.

Does anyone know if this glitch is present in the actual circuit, and if so, is it curable?
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Old 18th January 2002, 09:39 AM   #28
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Michel,

I suspect that your scheme might be similar to the input stage used in the ETI-477 amp designed by Dave Tillbrook. He used BC550C and BF469/470 transistors.

Electronics World is a great publication and it would be an honour to read your forthcoming article; but this forum has some stalwarts in the field, starting with none other than Nelson Pass and there are others like Grey and Geoff (to mention a few) whose experience and knowledge is to be respected. So why don't you tone down a bit as everyone seems to be suggesting to you? You will be doing a favour to everyone by upholding the spirit of this forum. I don't mean to be rude but let each one express his idea in the most acceptable manner - this is DIY. Thanks.
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Old 18th January 2002, 06:38 PM   #29
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Michel,

Current mirror, folded-cascode, and bipolar do not
appear to be sufficient hints. Bipolar is no hint at
all, actually, so why don't you keep this thread alive
by issuing another hint or two?
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Old 18th January 2002, 08:08 PM   #30
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Michel,
What you choose to call 'enthusiasm' is indeed rudeness. Calling it by another name does not mitigate the bad odor it leaves behind.
You claim to respect Nelson's behavior. Kindly emulate him by either giving the details that people request, or not saying anything at all.
You speak of 'TRANSPARENT' evidence. Where's yours?

Grey
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