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Old 29th November 2012, 08:46 PM   #311
hesener is offline hesener  Germany
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Quote:
Originally Posted by Benedetto View Post

Another issue that keeps me awake is how and with what material
the obvious shielding has to be done...
Take a look at the assembly guide, at the end I documented my approach to shielding and grounding, worked beautifully for me. Yes the Paradise is dead quiet if done right.....
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Old 29th November 2012, 10:10 PM   #312
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Here is good stuff :Technics | Cartridge Data | Vinyl Engine

you should be able to shoot one for 50 to 100$
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Old 29th November 2012, 10:20 PM   #313
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Thanx to both of you !
Im quite confused a bit because on MDR runs the legendary
Isle of Wight Hendix gig........
C ya tomorrow.
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Old 1st December 2012, 08:53 PM   #314
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Guys I'd appreciate some input here.

I have measured all my 327's and 90% of them are sub 300hfe, I have 50 ranging from 375-420 but nothing above this.

But 99% of my 337's are 500+ (500-540 mostly) and I have maybe 5 that measure between 450 and 500, but none below 450

So I can't match ****.

Does anyone have a suggestion for a vendor of better 327's and suitable grades?

All help greatly appreciated.
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Old 1st December 2012, 10:37 PM   #315
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Carolus has same but opposite problem in the other Paradise tread
Paradise phono stage part GB post 216
Dig it up and and
option 1 make swap with him
option 2 I got pupu load of 327 (FEW UNDREDS) with HFE above 540 and few undreds 337 with with HFE around the 500 mark
I be happy to help PM on its way

Last edited by Bksabath; 1st December 2012 at 10:45 PM.
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Old 1st December 2012, 10:49 PM   #316
beetle is offline beetle  Germany
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How hot should the headsink become? Mine is getting boiling hot. Can't leave my fingers on it for more then a second. Output voltages are ok. Input voltage 30V@206mA positive and 30V/152mA negative rail.
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Old 1st December 2012, 10:56 PM   #317
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Boiling hot is not right. Input conditions are ok so it does not come from over voltage .
Frans, do you have an idea on what to check ?
Un symmetric current draw is a bit strange too. Reversed electrolytic ?
Can you look if one on the electrolytic capacitors shows an expanded top ?
There are slots in the cap that break when an elcap is reversed.
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Old 1st December 2012, 10:59 PM   #318
beetle is offline beetle  Germany
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They all look fine. And soldered in correctly.
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Old 1st December 2012, 11:03 PM   #319
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Quote:
Originally Posted by beetle View Post
How hot should the headsink become? Mine is getting boiling hot. Can't leave my fingers on it for more then a second. Output voltages are ok. Input voltage 30V@206mA positive and 30V/152mA negative rail.
How hot is boiling hot?
any way for you to mesure?
Running hot on my R2
mesured 48 C with extra sinks and 68 C with sink suplied for R2

see My paradise tread post 18 and after MY PARADISE
Ideal voltagge shuld be about 26 V

150 mA sound about right 200 mA on other rail is to much

Provided there is nothing wrong with components (but that 200 mA look a bit suspicious)

option 1 change trafos for 18 18 V ac ones (just got 2 of those to fit next week if you can wait I will report about it)
option 2 add further CRC after rectifiers (I got 4400 uF 10 Homs 4400 uf fitted inside phono box)

IMO to go a bit hi in voltage and use same extra CRC is way to go

Last edited by Bksabath; 1st December 2012 at 11:12 PM.
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Old 1st December 2012, 11:17 PM   #320
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Quote:
Originally Posted by Joachim Gerhard View Post
Boiling hot is not right. Input conditions are ok so it does not come from over voltage .
Frans, do you have an idea on what to check ?
Un symmetric current draw is a bit strange too. Reversed electrolytic ?
Can you look if one on the electrolytic capacitors shows an expanded top ?
There are slots in the cap that break when an elcap is reversed.
I did make that mistake and tok hours to find one reversed cap

Switch off for a while (sleep over it) and start afresh.
Cek each single capacitor on the board.
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