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Old 9th July 2012, 11:15 PM   #6171
Joachim Gerhard is offline Joachim Gerhard  Germany
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One last thing for tonight. This is what one of my teachers has to say :http://www.adamjhill.com/Hill%20+%20...20-%20RS25.pdf
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Old 9th July 2012, 11:26 PM   #6172
Benedetto is offline Benedetto  Germany
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Ouch.
What happened to our dutch connection ?
Stuffing german highways with these cute little boxes
they use to attach in the back of their cars ?
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Old 10th July 2012, 11:36 AM   #6173
Joachim Gerhard is offline Joachim Gerhard  Germany
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I got my original Paradise boards from Hesener today. Many thanks. They still have an oscillation problem. Letīs see what i can do.
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Old 10th July 2012, 11:43 AM   #6174
Benedetto is offline Benedetto  Germany
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Quote:
Originally Posted by Joachim Gerhard View Post
original Paradise boards
I hope this means first batch ?
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Old 10th July 2012, 11:43 AM   #6175
hesener is offline hesener  Germany
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The caps I used are 1uF / 50V or 63V DC MKS2 from Wima, they have a pin spacing of 5.08mm. Should be easily obtainable at Buerklin, Farnell, Mouser, Conrad, ...
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Old 10th July 2012, 11:46 AM   #6176
hesener is offline hesener  Germany
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Quote:
Originally Posted by Benedetto View Post
I hope this means first batch ?
Yes, these are rev1 boards. I tried all the tricks I am aware of to get rid of the oscillations, but these are pretty stubborn (stuff for me to learn, I guess ;-)


The rev2 boards do not have that oscillation issue, I think. I did put transistors with HFE=510 in mine and it works beautifully. Don't know what Le'Flu used exactly , but he also has rather high values for HFE. His boards also worked at first turn-on ;-)
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Old 10th July 2012, 11:46 AM   #6177
Benedetto is offline Benedetto  Germany
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Thanx Alfred,
ordered them last night.
I'm fiddling on a "Warenkorb" for the Paradise.
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Old 10th July 2012, 11:47 AM   #6178
hesener is offline hesener  Germany
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Quote:
Originally Posted by Joachim Gerhard View Post
I got my original Paradise boards from Hesener today. Many thanks. They still have an oscillation problem. Letīs see what i can do.
You are welcome! Please share your findings, this problem is really puzzling me....
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Old 10th July 2012, 11:52 AM   #6179
hesener is offline hesener  Germany
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Originally Posted by Benedetto View Post
Thanx Alfred,
ordered them last night.
I'm fiddling on a "Warenkorb" for the Paradise.
you have mail....
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Old 10th July 2012, 11:59 AM   #6180
Joachim Gerhard is offline Joachim Gerhard  Germany
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Thanks Hesner for your support.
The material ( schematic, BOM, etc. ) you send me for the Paradise R2 is very helpful.
I hope i have the R2 playing soon.
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