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Old 31st December 2010, 10:15 AM   #5711
RCruz is offline RCruz  Switzerland
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Quote:
Originally Posted by nicoch46 View Post
Ricardo you load the primary or sec ? there is a lot bla-bla on this ...search on AA
I am loading the secondary with 47k.

I left room for loading the primary if I need to go lower than the resulting 470ohm (1:10)
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Old 31st December 2010, 10:49 AM   #5712
RCruz is offline RCruz  Switzerland
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Whre can I find AA ?
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Old 31st December 2010, 01:32 PM   #5713
Salas is offline Salas  Greece
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Originally Posted by vgeorge View Post
A recent statement from Scott Wurcer!
Quote : Honestly, build Salas' Simplistic RIAA if you can HONESTLY tell it over a Blowtorch then get out your snowblower.
Scott Wurcer is one of the most clever engineers on the planet. He is cleverly humorous too, don't underestimate that. Keep this thread as it started, claim free.
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Old 31st December 2010, 01:36 PM   #5714
Salas is offline Salas  Greece
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Whre can I find AA ?
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Old 31st December 2010, 01:47 PM   #5715
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AA is everywhere around the US.
We could all use a 12 step problem of some sort.

I don't get the snowblower analogy, although we use them of course this time of year.
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Old 31st December 2010, 01:55 PM   #5716
Salas is offline Salas  Greece
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AudioAsylum is AA in this case, but to pun is fun.
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Old 31st December 2010, 02:31 PM   #5717
massimo is offline massimo  Italy
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Quote:
Originally Posted by Joao@AltheaMusica View Post
Thanks for the info. Why 300mA?
.......
A happy new year to all forum members here
It's accepted that the mosfet CCS works best over 200 mA. 3 complete shunt regs will draw over 600 mA. Ad I do mind the polar bear , I arbitrarily halved that value.


Feliz ano novo 2U too!
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Old 31st December 2010, 03:06 PM   #5718
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It's accepted that the mosfet CCS works best over 200 mA. 3 complete shunt regs will draw over 600 mA. Ad I do mind the polar bear , I arbitrarily halved that value.
Thanks for the info, I've got it now!

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Feliz ano novo 2U too!
Obrigado
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Old 31st December 2010, 03:08 PM   #5719
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Old 31st December 2010, 03:16 PM   #5720
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Originally Posted by RCruz View Post
Hi Joćo
I experimented using the same shunt for both right and left channels and also one shunt per channel.
The latter produces much more separation and detail.
Ok that describes my experience as well. But the version I described makes you dance and enjoy more listening to the music. It makes better inner dynamics and rythm. Try it out.

BTW, we don't have true different mono signals as L+R channel. Mastering means to use pan pots (panorama pots) to place the groups or instruments. Think about this point.

Mono power supplies male sence in mono power amps to get smaller power supplies.


Quote:
Originally Posted by RCruz View Post
Why not use 4 shunts instead of 3 .... feed both 1st stages individually and 2nd stages individually.
Good point, but I'd recommend the opposite and feeding the output stages individually!


Quote:
Originally Posted by RCruz View Post
Why the need to feed the buffer individually ?
Make it stable and inependet for load problems, here cables to the line stage. And if you're using a passive pre, in form of a TVC, then you can drive it easily.

Um feliz ano novo. Amor, saude e dinheiro!
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