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Old 18th November 2012, 06:18 PM   #7721
FdW is offline FdW  Netherlands
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Quote:
Originally Posted by RCruz View Post
I want to openly thank Frans for all the night work and inconditional support
Thanks Ricardo, It was a pleasure to do this together with you
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Old 19th November 2012, 08:03 AM   #7722
gk7 is offline gk7
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Originally Posted by as-audio View Post
Where does this scheme come from?
Thanks.
It´s from an austrian electronics magazine called "ITM Praktiker" in the
early eighties. It was used in a project called "modular preamp".
Paul Skritek ( Handbuch der Audio - Schaltungstechnik: Amazon.de: Paul Skritek: Bücher ) designed it, I believe.
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Old 19th November 2012, 04:04 PM   #7723
poli is offline poli  Germany
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Default Paradise documentation

Hi Joachim or anyone else,
since group buy is already over and I am coming late -as always- I might think of designing the PCB for the Paradise phono stage and PSU myself. Can anyone please post the most recent documentation, schematics, BOM and PCB layouts?
I was trying Holgers Paradise-forum but for some reason the page about the documentation did not open.
Thanks a lot!
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Old 19th November 2012, 06:19 PM   #7724
RCruz is offline RCruz  Switzerland
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Look here for starters: Paradise Builders
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Old 19th November 2012, 06:28 PM   #7725
RCruz is offline RCruz  Switzerland
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time asymmetry: BaBar experiment confirms time asymmetry | News | R&D Magazine
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Old 20th November 2012, 08:55 AM   #7726
poli is offline poli  Germany
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Thanks mate!
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Old 22nd November 2012, 01:24 PM   #7727
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The second channel of the tube phono for ETF is working !
I only have to do some mechanical work ( put the PSU in a box ) and then i can test it in my system.
The square with Anti RIAA look decent. I have a slight subsonic filter under 30Hz so the top is not totally flat.
Attached Images
File Type: jpg TPETF inside.jpg (606.3 KB, 228 views)
File Type: jpg TPETF 1k.jpg (346.4 KB, 214 views)
File Type: jpg TPETF 1k sq.jpg (434.3 KB, 203 views)
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Old 22nd November 2012, 01:41 PM   #7728
Salas is online now Salas  Greece
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Is the Peak Tech generator totally flat top on its own when the scope is DC coupled for under 100Hz signals? So the slope we see is totally the phono subsonic's own?
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Old 22nd November 2012, 02:18 PM   #7729
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I think so. With the same generator and my solid state stages i get a flat top.
I will check that again.
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Old 22nd November 2012, 02:27 PM   #7730
Salas is online now Salas  Greece
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They normally are flat, some high MHz DDS ones may just show jitter in audio frequencies. But its good to check. Looped with a BNC cable to scope should suffice. 50 Ohm terminated even better.
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