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Old 2nd November 2007, 08:01 PM   #1511
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Mr P,

my congratulations to you and Mrs JP, 25 more if you can.
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Old 2nd November 2007, 08:27 PM   #1512
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Quote:
Originally posted by jacco vermeulen
Mr P,

my congratulations to you and Mrs JP, 25 more if you can.

I'm here with wakoo dutchie.....

25 more at least - at least 'till you can work .........
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Old 13th November 2007, 07:41 PM   #1513
Manu is offline Manu  Europe
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Quote:
Originally posted by Nelson Pass


I did read an interesting book, Lee Smolin's The Trouble With Physics
which I enjoyed very much.

Mr. Pass,
thank You for the hint.
It seems indeed to be a highly enjoyable book and certainly very well writen.
About strings theory, I'am allways fascinated by the possiblility of visualisation of very abstract and complicated mathematical theories.
The chapter (16) about sociology of science is very interesting. The next one ("What is science"?) is strange in my opinion, as it leads to somewhat tautological conclusions. But I must maybe re-read again to be sure.
--
Anyway, page 262:
"... supersymmetry [...] may be shown by experiment to be true, and if it is, its inventor will deserve Nobel Prize."
HeHe.
All the best to you.

Manuel
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Old 28th November 2007, 03:36 PM   #1514
Serge66 is offline Serge66  Switzerland
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Default More linear transistors

Greetings,

It is only recently that I came across Pass Labs Amplifiers. Mainly through reviews. I have not had the privilege to listen to one.

I am mostly into tubes, but I have paid regular visits to the DIY Pass site. I congratulate and thank Mr. Nelson Pass for sharing his passion and outstanding products with us.

I have two questions:
1. Would the Aleph X amplifier be better by using more linear transistors? For example 2SK1058. Which are quite expensive. The max. current is only 7A compared to 57A for the IRFP044.
Interestingly, the IRFP044 become more linear with heat.

2. Does a current source behave better if you use more linear transistor? Or a current source is a current source. Period. No matter what transistor you use?

Thank you.

Serge
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Old 28th November 2007, 08:17 PM   #1515
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Everything works better with more linear transistors, tube, or
whatever. No exceptions I can think of.

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Old 28th November 2007, 08:54 PM   #1516
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Quote:
Originally posted by Nelson Pass
Everything works better with more linear transistors, tube, or
whatever. No exceptions I can think of.


but - is it worth the trouble .......... it's another issue ;

excluding pure joy in building variations ....... as sole and completely worthy purpose


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Old 28th November 2007, 11:00 PM   #1517
Serge66 is offline Serge66  Switzerland
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Thank you, Nelson.

Serge
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Old 22nd December 2007, 11:25 AM   #1518
Vix is offline Vix  Yugoslavia
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Christmas is approaching, trees are decorated...I've been told that will drop some presents through chimney...

But he has a problem... Open Baffle speakers are too big...therefore he will drop just plans...

Or, even better, he will post them here so all good kids who wished nice active OB's can build them...(provided that they did the homeworks)

Nelson, any chance for that?
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Old 24th December 2007, 06:19 AM   #1519
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Best wishes to Nelson and all Pass fan friends on this

Hope this year brings lots of nice Zen amps to you!!!

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Old 24th December 2007, 06:42 AM   #1520
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Merry Christmas to all. May the coming year bring a wealth of information, inspiration, and success to everyone.
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