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Old 13th September 2003, 04:35 PM   #31
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common collector symetrical out put?
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Old 13th September 2003, 04:57 PM   #32
DrG is offline DrG  South Africa
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No. It's a combination of CE and CS at the same time... have a look at my first post. It was a query regarding something I was doodling. Then people pointed out Bryston had done (virtually) the same thing...
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Old 14th September 2003, 07:10 PM   #33
jcarr is offline jcarr  United States
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Dr. G:

>I guess it's true: there really is nothing new under the sun...<

Not necessarily. Sometimes you design something which has already been invented elsewhere (most recent example in my case would be the "Baxandall" pair), but sometimes you design something that works well, but years later, you still never find mentioned anywhere outside of your own circuits. You just have to keep thinking, trying and working.

Besides, don't automatically take it as a bad sign if it turns out that something that you develop has been previously invented by someone else. To put a positive spin on it, you may choose to consider it as verification that the design issues that you are thinking of may actually mean something for the performance. Such verification may imply that you are _not_ off on some wild goose chase...

Keep on trying!

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Old 14th September 2003, 07:37 PM   #34
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Quote:
Originally posted by jcarr
Not necessarily. Sometimes you design something which has already been invented elsewhere (most recent example in my case would be the "Baxandall" pair), but sometimes you design something that works well, but years later, you still never find mentioned anywhere outside of your own circuits. You just have to keep thinking, trying and working.

Besides, don't automatically take it as a bad sign if it turns out that something that you develop has been previously invented by someone else. To put a positive spin on it, you may choose to consider it as verification that the design issues that you are thinking of may actually mean something for the performance. Such verification may imply that you are _not_ off on some wild goose chase...
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Old 14th September 2003, 08:45 PM   #35
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Default I hear that train a coming......

"Inherent in inverting stages. Not a trainsmash."

Inverting amplifiers have a ground reference, the noninverting input.

Where in the circuit is that exactly........

Any of you guys ever heard of vaporware?

http://www.footballsoftware.com/

Maybe we can have a fantasy amplifier thread. No simulation, specs, measurements, or schematics with part values. a simplefied schematic or vauge desription will be fine.
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Old 14th September 2003, 09:02 PM   #36
Electrons are yellow and more is better!
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DrG, what is your goal? What do you want to achieve?

I usually have a goal than trying to reach it, not the other way around.
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Old 15th September 2003, 10:18 AM   #37
DrG is offline DrG  South Africa
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Quote:
DrG, what is your goal? What do you want to achieve?
Right now just thinking and chilling... the concept is hybrid. I feel comfortable with the tube VAS/driver section. I'm basically considering "different/new" arrangements for a low/unity gain silicon o/p stage, preferably inverting. And this was just an idea. If you have others I'd be keen to listen.

Fred Dieckmann:
Quote:
Inverting amplifiers have a ground reference, the noninverting input.
Well I'll be damned...
Quote:
Where in the circuit is that exactly...
Can't find it, sorry. Why don't you have another look. Or take a squizz at Nelson Pass' Zen 5, on which part of my circuit is based... it seems to be "missing" the same graound reference hehehehe

Quote:
Maybe we can have a fantasy amplifier thread. No simulation, specs, measurements, or schematics with part values. a simplefied schematic or vauge desription will be fine.
Ok... can we call it the Dieck-thread do you think?
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