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Old 27th March 2012, 05:35 PM   #5621
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Never tought about placing the resistor upright such a simple and elegant solution.

This will free up board space, make more room for caps, use shorth bridgess if resistor is not needed, resistor be cooler and main thing less complicated tracks and possibly fatter ones as well.

I will go for that if ok

OK?
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Old 27th March 2012, 07:32 PM   #5622
RCruz is offline RCruz  Switzerland
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Quote:
Originally Posted by Joachim Gerhard View Post
They sound prety much awesome !
I have the FPS on hand. I would not say that the Paradise images better. Whereas the FPS
etches with a fine cissel the Pardise blows in some air and liquidity. I also find it more transparent but not in an "obvious" way. When HiFi in a technical sense is what you want, take the FPS. It is wideband, transparent and dynamic. Where the Paradise betters it is in naturalness. It simply is "there" in a very atractive but unspectacular way. Noise is a bit lower as in the FPS although i play it balanced. Actually the FPS humms less but has more hiss, especially in the bass. In both ocasions it does not distract from the listening because both stages only have audible noise when i crank it so load so that it is unbearable. It has to be seen if both stages sound more similar when i take out the somewhat falling response in the Pardise.
Promising results I see
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Old 27th March 2012, 07:47 PM   #5623
FdW is offline FdW  Netherlands
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Quote:
Originally Posted by Bksabath View Post
Never tought about placing the resistor upright such a simple and elegant solution.

This will free up board space, make more room for caps, use shorth bridgess if resistor is not needed, resistor be cooler and main thing less complicated tracks and possibly fatter ones as well.

I will go for that if ok

OK?
As alway, glad to be of help
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Old 28th March 2012, 05:55 PM   #5624
RCruz is offline RCruz  Switzerland
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Quote:
Originally Posted by Bksabath View Post
Never tought about placing the resistor upright such a simple and elegant solution.

This will free up board space, make more room for caps, use shorth bridgess if resistor is not needed, resistor be cooler and main thing less complicated tracks and possibly fatter ones as well.

I will go for that if ok

OK?
Some experts might go against upright resistors due to the fact there might be induced voltages at the resistors ends because of the differences in temp, but in a psu I guess it does not matter... I even built a CDP output buffer/filter with all the resistors upright and it sounds wonderfully
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Old 29th March 2012, 12:34 PM   #5625
FdW is offline FdW  Netherlands
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Default Mini ATL PSU (in progress)

All,

Yesterday I was working on my new power amplifier (specified for 100Vpp @ 2 Ohm, so it can be bridged with 4 and 8 Ohm loads). There was the need for an internal power source of 15V positive and negative. An early debug build of the Paradise PSU is currently being used for this purpose. Due to the fact that only 30 mA is needed, using the Paradise PSU version is a bit of overkill (in size), so I wanted a smaller version of the PSU. So I asked my friends at ATL to design something for me. Below the result (and I got permission to publish ).

The schema shows a small version of the Paradise (ATL) PSU that could be made on a very little board and then be used as a 3-pin device. For the project this will be my approach (e.g. I will design such a little board, but that will take time (do not expect me to publish a PCB in the next month ).

Anyway, for anyone interested, here is the design (and I will build my proto type in the next weekend, I will post my results).

Regards,
Frans.
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File Type: png Mini ATL Shunts 15V.PNG (109.2 KB, 318 views)
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Old 29th March 2012, 02:38 PM   #5626
FdW is offline FdW  Netherlands
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Quote:
Originally Posted by RCruz View Post
Some experts might go against upright resistors due to the fact there might be induced voltages at the resistors ends because of the differences in temp, but in a psu I guess it does not matter... I even built a CDP output buffer/filter with all the resistors upright and it sounds wonderfully
Some 'handy men' (in the old days) would leave as much as possible of the original connection wires (of the resistor) intact as cooling fins.
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Old 29th March 2012, 02:45 PM   #5627
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I'm more of a capacitor erection artist.
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Old 29th March 2012, 04:38 PM   #5628
kevinkr is offline kevinkr  United States
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Per Bksabath's request I have removed his OT (humorous) post and all related responses. Carry On!
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Old 29th March 2012, 07:23 PM   #5629
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Quote:
Originally Posted by FdW View Post
Anyway, for anyone interested, here is the design (and I will build my proto type in the next weekend, I will post my results).

Regards,
Frans.
Sorry if my silly joke caused upset early
Tank you Kevin for removing that and the related post

Back on topic bit, so bit of recap
That 150 dB scale is realy impressive and even if real components implementation give a 30dB vorst results it would be pretty good for
Douglas MC head pre-pre amplifier and or Mr Voghel mc pre as in the sound of silence book.

About PCB for it I will have a go.

Tanks for posting
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Old 29th March 2012, 07:43 PM   #5630
FdW is offline FdW  Netherlands
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Quote:
Originally Posted by Bksabath View Post
Sorry if my silly joke caused upset early
Tank you Kevin for removing that and the related post

Back on topic bit, so bit of recap
That 150 dB scale is realy impressive and even if real components implementation give a 30dB vorst results it would be pretty good for
Douglas MC head pre-pre amplifier and or Mr Voghel mc pre as in the sound of silence book.

About PCB for it I will have a go.

Tanks for posting
And now I have to respond you may be a bit skeptic, maybe even more than a bit, but these are simulation results. If the real thing is going to behave like its big brother (the Paradise PSU) then I will be happy.
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