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Old 3rd February 2012, 07:14 PM   #5111
RCruz is online now RCruz  Switzerland
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Hi Alfred

Thank you for your comments and unconditional help. In the servo I am going to use a very good quality film cap I salvaged from another project.

I will try to find some small films in RS for the 1u on the shunts.

This is the most beautifull pcb I ever worked with... Soldering is a breeze and I can even replace parts without "pad lifting" issues.

I took my time to match all the transistors to 1%. Also matched all resistors, zeners and leds (I must measure everything because my sour eyes do not help a lot)

After the last evolutions I believe it will sound wonderfully.

I am looking forward to make a comparison listening session.... I will be moving to Switzerland in the near future (where my Dear Wife already set a better lab for me) so it will be easier for me to travel and meet other Mpp Team menbers
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Old 3rd February 2012, 07:14 PM   #5112
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Hesener, what Opamps did you use for Servo ? OPA134 ?
Did you get time to listen more ?
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Old 3rd February 2012, 07:19 PM   #5113
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Yes, Ricado, we should do an ATL meeting. Preferably in my place that is aprox. in the middle. In may it is beautiful here.
You can get cheep flights to Paderborn-Lippstadt airport. We can also visit the Nixdorf Computer Museun and later have some Suschi in the bar of my friends. Fear not, it is not as expensive as in Düsseldorf.
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Old 3rd February 2012, 07:22 PM   #5114
RCruz is online now RCruz  Switzerland
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Looking forward to that meeting

You will be amazed with the outcome of your work.

PS: I love German beer.... !!!
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Old 3rd February 2012, 07:27 PM   #5115
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We have a lot of local beers here, Warsteiner, Veltins and Westheimer are only the most famous. I can arrange a Warsteiner Brewery tour. That is a classic.
Can´t wait to see your build and hear it "through your ears ".
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Old 3rd February 2012, 07:38 PM   #5116
RCruz is online now RCruz  Switzerland
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I experimeted a special bear that Jürgen was drinking in Krefeld... awesome... he told me it was mixed with mushrooms I did not mension Dr. Hoffman of course.

Thank you for the invitation... I am also eager to know your "voicing" options.
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Old 3rd February 2012, 09:22 PM   #5117
beetle is offline beetle  Germany
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If Albert is also there with some merchandise, call me in. But I think Albert left our planet. Maybe the guys from ATL invented a teleport... Who knows?
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Old 3rd February 2012, 09:28 PM   #5118
hesener is offline hesener  Germany
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Quote:
Originally Posted by Joachim Gerhard View Post
Hesener, what Opamps did you use for Servo ? OPA134 ?
Did you get time to listen more ?
Hi, I used OPA134 for the servo. And I was listening to both FPS and PAradise just before I left, in fact my wife was out so I had a few hours with the LP12, the phono stages and my headphone, with undisturbed back-and-forth (usually people get that "he's crazy" look when they see you listen the same song multiple times ....). That was the basis of my last comments.

back on sunday, and I should be able to do some measurements next week which should really answer a few questions....
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Old 3rd February 2012, 09:55 PM   #5119
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Thanks, Alfred.
Wima has some new Polyester film caps in high values that can substitute electrolytics.
The are not small but compact enough to be used in some placed. No leakage any more.
Attached Images
File Type: png Wima high value film.png (5.2 KB, 278 views)
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Old 3rd February 2012, 10:08 PM   #5120
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If circuit 5108 works i have a good name for it.
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