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IRLB3813 Triode-curve
IRLB3813 Triode-curve
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Old 30th March 2015, 04:32 PM   #11
WalterW is offline WalterW  Netherlands
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IRLB3813 Triode-curve
what a strange MOSFET....transconductance: min. 140 Siemens
continuous drain current 260 ampere for a TO-220....
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Old 30th March 2015, 05:11 PM   #12
thiagomogi is offline thiagomogi  Brazil
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This curve is the triode ?????
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Old 30th March 2015, 05:26 PM   #13
martinsson is offline martinsson  Sweden
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It is a bit strange isn’t it, but I like strange and testing something a bit different, I believe the triode characteristics is likely to become more apparent when you lower the Amperes (look at the vertical scale) and extrapolate the trend it exhibits around 8-10V.
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Old 30th March 2015, 05:28 PM   #14
thiagomogi is offline thiagomogi  Brazil
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would be better?

http://www.irf.com/product-info/data...a/irfs3207.pdf
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Old 30th March 2015, 07:28 PM   #15
vdi_nenna is offline vdi_nenna  United States
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IRLB3813 Triode-curve
Would you get better bass response by doubling in size the input and output caps, like in the Zen amp series?

Is it 1.6A across the drain resistor? Is it 40-50w?
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Last edited by vdi_nenna; 30th March 2015 at 07:37 PM.
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Old 30th March 2015, 08:27 PM   #16
bogdan_borko is offline bogdan_borko  Serbia
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Quote:
Originally Posted by thiagomogi View Post
This curve is the triode ?????
Yes, triode on lsd
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Old 30th March 2015, 08:34 PM   #17
thiagomogi is offline thiagomogi  Brazil
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good point
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Old 30th March 2015, 08:35 PM   #18
hesener is offline hesener  Germany
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IRLB3813 Triode-curve
nice amp to build using a couple of those leftover notebook power supplies
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Old 31st March 2015, 04:09 AM   #19
martinsson is offline martinsson  Sweden
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This is the state of the CAD "virtual build" at the moment, it is by no means not finished just quite yet, but it is a good exercise in routing and component packaging, all components below are dimensioned according to their respective specs.

The PS is 200VA 9+9V and the PS Cap's are 6x 15.000uF.

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Old 31st March 2015, 05:45 AM   #20
martinsson is offline martinsson  Sweden
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With respect for the fact that this is niether the topic of the thread or a Pass amp (although it is heavily inspired by Mr. Pass work according to the designer Circlomanen) I think it would be more apropriate to perhaps start another thread about this build in a more apropriate forum section, it was only ment as an example of what I'm plannig to do with this perticular transistor.

Last edited by martinsson; 31st March 2015 at 05:48 AM.
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