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Old 26th August 2011, 07:37 PM   #471
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Quote:
Originally Posted by MiiB View Post
Nico...

was that with my (kind of sort off folded cascode) front end,,,PCB looks really good...

M
YEP!
And you thought I only did simulations :-))

Last edited by Nico Ras; 26th August 2011 at 07:39 PM.
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Old 26th August 2011, 08:31 PM   #472
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Hi Lasy Cat, i have a bunch of MJL3281/1302 laying around. I take a look at SC5359/SA1987 datasheet and they seems to me to quite near on MJL characteristics, only toshiba cob is 360pf as Onsemi cob is 600pf the reste is quite the same. Do you think they could be good candidate for SSA BIGBT?
I have a pair of 300Va 2x25V laying under bench as a pair of 200x200x40mm heatsink too. These could be a good begining for SSA BIBGT

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Last edited by Idefixes; 26th August 2011 at 08:34 PM.
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Old 26th August 2011, 09:03 PM   #473
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Originally Posted by radio View Post
When will we see almost made ​​amplifier with a happy ending?
cheers !!
I guess we all are waiting for you to built something.

Otherwise read post #188 or similar but it will take you some time ...
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Old 26th August 2011, 09:57 PM   #474
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Hi Alex.

May I be bold to ask that you publish Gerber plots as well for those who are making professional boards. Just zip them up and post them with the PDFs.

The layout is very, very nice, thanks Alex.

Kind regards

Nico
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Old 26th August 2011, 10:07 PM   #475
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I wonder why this thread only have four stars? Have you all voted or is there something missing?
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Old 26th August 2011, 11:37 PM   #476
a.wayne is offline a.wayne  United States
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Originally Posted by Nico Ras View Post
I wonder why this thread only have four stars? Have you all voted or is there something missing?
Yes the schematic of the real amplifier we have enuff small amps around here, when can we see the scaled up version ...


The Big one .....

Last edited by a.wayne; 27th August 2011 at 12:01 AM.
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Old 27th August 2011, 12:07 AM   #477
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It would be great if Alex prepare an extra PCB for all-japan bjt devices with respecting Nico's circuit.

I wonder why all pcbs have power supply unit? Is there reason for that amplifier should be close to power unit? If it is not mandatory, PCBs should be bare in my opinion.

Last edited by terranigma; 27th August 2011 at 12:18 AM.
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Old 27th August 2011, 03:29 AM   #478
Bigun is offline Bigun  Canada
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Originally Posted by a.wayne View Post
Yes the schematic of the real amplifier we have enuff small amps around here, when can we see the scaled up version ...


The Big one .....
It's in progress....
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Old 27th August 2011, 04:15 AM   #479
a.wayne is offline a.wayne  United States
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Yeeeeeow.... Now we talking , is that the PSU..........
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Old 27th August 2011, 04:39 AM   #480
Luke is offline Luke  New Zealand
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Originally Posted by a.wayne View Post
Yeeeeeow.... Now we talking , is that the PSU..........
no its the dac
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