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Old 11th May 2008, 05:44 PM   #1
CECCO is offline CECCO  Italy
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Default My STK4050 amp.

This is a 200Wrms into 8Ω load.
In addiction to the original circuitry, there are DC protection ,Power on delay and power off cutoff.
The sound "sounds" very good to me.
I was concerned about the thermal behaviour.
Just after half an hour of normal use, the heatsink was very hot (untouchable with bare hands).
I've build also an inproved version with larger caps and better snubber.
When testing it at full power with a dummy load, I switched the function generator in the 100KHz range blowing the chip. The result can be seen.
ciao.
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Old 12th May 2008, 02:49 PM   #2
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I attacched an image but I don't understand why it's not there.
The size was around 1.5M
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Old 12th May 2008, 02:49 PM   #3
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Sorry but since I can't edit posts I have to add one.
Witch is the procedure to show pictures in a thread?
thanks.
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Old 13th May 2008, 07:41 AM   #4
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Old 13th May 2008, 07:41 AM   #5
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Old 13th May 2008, 07:41 AM   #6
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Old 13th May 2008, 07:41 AM   #7
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Old 13th May 2008, 07:41 AM   #8
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Old 13th May 2008, 07:41 AM   #9
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Old 13th May 2008, 07:41 AM   #10
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