John,
When I will complete my amplifier (in few years !), I will do some plasma speakers !
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;-)
Olivier
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- posted
15 years ago
class A amplifier
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- posted
15 years ago
Nice! I wonder if it has good low-frequency response?
Could have trouble getting UL certified...
M- Vote on answer
- posted
15 years ago
might have
shout me
Indeed, because anything I say now, you will simply shoot down in flames.
Graham
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- posted
15 years ago
modern
His
magic
It's a lousy circuit and I won't waste any time trying to dress up its well-known shortcomings. If he wants a good class A output stage he needs to go back to the drawing board.
Graham
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- posted
15 years ago
Back to the 80s, I have listened a plasma tweeter from the Magnat company. It was amazing. No mechanical moving part, no directivity. The sound is everywhere in the room. One asks them if they have something for medium and bass. (Marketing ?) answer is "no" due to patents owned by the army ...
I think that the major problem is the production of ozone, which was not good for health. Perhaps that also interests army !
Olivier
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- posted
15 years ago
might have
shout me
-- If you have a defensible position, how could I? I think this whole "gamut of output stage" thing is made up, but prove me wrong; let\'s see what you\'ve got... JF
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- posted
15 years ago
modern
first. His
the magic
well-known
the drawing
-- What he needs is a little guidance and since you profess to be able to run through the gamut of output stages, why not offer a little help instead of the little game you\'re playing? JF
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- posted
15 years ago
I can't abide fools. I've seen so many (including the ones the neglect first class advice and go on to trash entire companies) to have time for them any more. Life isn't long enough for that.
Graham
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- posted
15 years ago
In the 80s, most things were Made in the USA or Made in Japan. Nowadays I'm sure the Chinese would be more than happy to infringe any patents you are able to provide.
Plus the patents have probably expired by now...
Michael
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- posted
15 years ago
...
This isn't the design group. The point of copying old circuits is making actual components perform as expected by actually putting them together and seeing what actually happens.
I think Eeyore needs a Pamprin.
Cheers! Rich
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- posted
15 years ago
modern
first. His
the magic
well-known
the drawing
What are the "well-known shortcomings" of a class-A emitter follower?
And what is your improved class A circuit?
John
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- posted
15 years ago
find
modern
be
all
first. His
the magic
well-known
the >drawing
Start by thinking of the pull-up and pull-down current ability. And how that affects any reactance on the load.
Looks like a standard complementary emitter follower Class AB output but with the wick turned up. Turn down the wick and it transitions from A to AB to B to C.
Graham
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- posted
15 years ago
What a "Jack Ass" you are.. I didn't see any thing stated that he was looking for a high end system other wise, I think he would have known enough to go out and do just that how ever, it's seem evident that he is interested in the workings of how it's done from the ground up!.
Do you understand that your a total jerk at times? wait, maybe all the time I could be mistaken there, it wouldn't be the first time. \\
Yes Pro, of what, I have no idea..
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"
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- posted
15 years ago
Try ebay.
Graham
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- posted
15 years ago
might have
shout me
stage
Does Eeyore ever post circuits?
John
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- posted
15 years ago
find
a modern
be
all
first. His
the magic
well-known
the >drawing
affects any
It can sink whatever current the sink transistor is running at. It can source whatever the emitter follower can pull up into the load + the sink. That seems pretty simple.
John
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- posted
15 years ago
Does appearing on ebay make something "pro"?
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|39%3A1|66%3A2|65%3A12|240%3A1318&_trksid=p3286.c0.m14
John
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- posted
15 years ago
might have
shout me
stage
Why, yes...
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Why do you ask?
Michael
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- posted
15 years ago
Rarely since the copyright for most isn't mine.
Graham
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- posted
15 years ago
affects any
And they're not equal are they ? Even less equal with the resistor load. I learnt that about 37 years ago. Basic high-end pro-audio practice.
Graham