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Old 10th July 2003, 09:56 AM   #1
sonnya is offline sonnya  Denmark
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Default CFP amp pics

Take look at my prototypes of a CFP amp with CFP outputstage. :O)
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Old 10th July 2003, 09:59 AM   #2
sonnya is offline sonnya  Denmark
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and another one.
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Old 10th July 2003, 10:01 AM   #3
sonnya is offline sonnya  Denmark
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and the last one.
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Old 10th July 2003, 10:18 AM   #4
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Do I guess well when I assume that the circuit is fully symmetrical ?

How good is load-depandant stability ?

Regards

Charles


BTW: The execution looks good !
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Old 10th July 2003, 10:25 AM   #5
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Nice work. For those of you who don't know: Sonny's connectors is really esoteric.

It's Wago!

With these connectors you will get almost tube sound. I use them also but model 255 and 256 with levers. You know I'm kidding? But Wago is really good in industrial environment.

Sonny, have you tested yet to use "current gain" in the current mirrors?
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Old 10th July 2003, 10:28 AM   #6
sonnya is offline sonnya  Denmark
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i have not tested it on a speaker yet. but into capacitive load i works fine. we will do it later today.


And yes it is symetrical... almost all modern Current feedback design is symetrical.

Sonny
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Old 10th July 2003, 10:30 AM   #7
sonnya is offline sonnya  Denmark
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no have not have the time yet. I have raised the degeneration resistor in the mirror from 100R to 221R which gave me lower DC-drift
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Old 10th July 2003, 10:45 AM   #8
sajti is online now sajti  Hungary
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Sonny, this amplifier looks really nice!
Did You plan by Yourself?
I wish You lot of happy hours with Your amp!

Sajti
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Old 10th July 2003, 10:53 AM   #9
sonnya is offline sonnya  Denmark
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yes they are my own design.

I plan to put some kit's out. With all parts needed.

Sonny
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Old 10th July 2003, 11:06 AM   #10
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Quote:
Originally posted by sonnya
and the last one.
Well done Sonnya! I like the color coded connectors, they show you really did pay attention to the details. QA people love this, it decreases chances of errors.
Did you already publish the schematics? I might have missed them.
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