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Old 27th January 2013, 01:55 PM   #1301
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40,320 of course?
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hoping to pick up some things.
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Old 27th January 2013, 02:31 PM   #1302
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You are welcome Stefan
As soon as I get started with R3 I will make the SMD plug in version but this won't be for a while as is to cold to work in my loft.

The plan is that it wont be much larger than the dip switch and have two rigid pins to solder straight on the board.

And
Tanks Simon

How is it sounding.

Better than my R2 and still giving you monalisa smile while listening to it I supose...
(told you so...)

Last edited by Bksabath; 27th January 2013 at 02:35 PM.
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Old 27th January 2013, 03:11 PM   #1303
Paulski is offline Paulski  United Kingdom
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Originally Posted by sq225917 View Post
40,320 of course?
I'd go for 255
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Old 27th January 2013, 03:31 PM   #1304
FdW is offline FdW  Netherlands
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Originally Posted by brozatus View Post
I'm in Paradise now!

Its running without any hum or hiss, just music!

Thank you all so much for any help and hints,
Christoph
Happy Paradise-ing
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Old 27th January 2013, 04:10 PM   #1305
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@analog_Sa
sorry, I've got no scope, if I had one I would have no idea how to use it.

First impressions is, I am jumping around, grabbing my favourite records, listen to them one after another, I can't find faults on the performance of the Paradise. It is inviting and is pushing all the time.

Compared to my Volpe, which I like very much, it seems that I have a slightly more depht, a little more punch in the bass, some grace when playing records, which are not first grade.

I'm just listening to a live record of Townes van Zandt, recorded in Berlin late 1990, called "Rain on a conga drum", I love this recording, it is very narrow and authentic.

Thank you all,
Christoph
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Old 27th January 2013, 04:22 PM   #1306
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Congratulation, this again proves that the Paradise can be made to work.
Depth, punch, grace, i like that.
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Old 28th January 2013, 01:51 PM   #1307
hesener is offline hesener  Germany
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Originally Posted by Libby123 View Post
Shame on me. I used the trimmer so badly that I really got negative voltage on plus caps. Again shame on me!!!!

Now the voltage is -0,698V on the upper resitor block (going down to vminus) and +0,697V at the lower one (going up to vplus). Me think its alright now.

But now another problem. I start up a soundcheck. Everything alright but there was a little fizz in voices. So I recheck the riaa area. I have 33.3nF at one bench (horizontal bench) (matched very good ) but on the other (vertical) bench (what shall be 11.1nF) is 25,4nF . so I desolder the 2 caps and there are still 25,4nF.

I looked on the shematic and this could not be. There are only the R18c (Neumann) and C2a and C2b that go to Vriaa. Right? That would mean ground to VRIAA is Capacity of 25,4nF.

Thanks
Good news, at least from a DC point of view you are up and running...

The circuit node where the RIAA caps go is very high impedance, there should be very little capacitance there. Thats strange.....
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Old 28th January 2013, 01:53 PM   #1308
hesener is offline hesener  Germany
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Quote:
Originally Posted by brozatus View Post
I'm in Paradise now!

Its running without any hum or hiss, just music!



PSU under the Trio/Kenwood,
Paradise on the left:



Thank you all so much for any help and hints,
Christoph
Great news, and beautiful casework!!!
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Old 28th January 2013, 01:57 PM   #1309
hesener is offline hesener  Germany
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Default PSU compensation caps

Hi all,
here a picture of how the compensation caps in the PSU can be applied, you need to locate the transistors under the heatsinks (the footpritns with the three connections), and solder the caps between the innermost and the middle pin. The transistors closer to the corners should get 470pF, the inner transistors 2.7nF.
On the picture you will see 3.3nF caps - before you ask , that is simply because I had them on hand

Many thanks to Doppelkopf who kindly lent me his boards so I could play with them..... After the PSU fix (yes they were oscillating) they sounded nice, with the groove JG/MiiB house courve....
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File Type: jpg PSU compensation caps.jpg (133.7 KB, 257 views)
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Old 28th January 2013, 02:06 PM   #1310
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After the PSU fix (yes they were oscillating) they sounded nice, with the groove JG/MiiB house courve....
Do you have a scope trace of the output to show?
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