HI alls,
here are the sch, analyses and pics of the build.
it sounds good, clear, hifi.
When its warm gate-gate bias voltage goes up with 100mV.
I designed the sch for +-35V but i have +-34 when playing music.
Is it better to design for +-34 ?
There are two Multisim harmonics analyses because the worse one is with 7ma bias current instead [email protected] supply voltage. In one of the screenshots there are 30-40mA because supply voltage there is 34.5V instead 35.
I tested with 7ma because to come close to reality.
i measured 200mv offset in reality where in Multisim is only 16mV.
I divided 200mv/16mv and there are 12.5 difference.
This means 86mA/12.5 -> 7mA
i found out its 200mv in TINA too, this means TINA is more close to reality and actually its very close
here are the sch, analyses and pics of the build.
it sounds good, clear, hifi.
When its warm gate-gate bias voltage goes up with 100mV.
I designed the sch for +-35V but i have +-34 when playing music.
Is it better to design for +-34 ?
There are two Multisim harmonics analyses because the worse one is with 7ma bias current instead [email protected] supply voltage. In one of the screenshots there are 30-40mA because supply voltage there is 34.5V instead 35.
I tested with 7ma because to come close to reality.
i measured 200mv offset in reality where in Multisim is only 16mV.
I divided 200mv/16mv and there are 12.5 difference.
This means 86mA/12.5 -> 7mA
i found out its 200mv in TINA too, this means TINA is more close to reality and actually its very close
Attachments
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sch.PNG69.1 KB · Views: 511
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ms_offset.PNG26.4 KB · Views: 121
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offset.PNG69.5 KB · Views: 77
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square.PNG43.9 KB · Views: 67
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THD.PNG69.8 KB · Views: 68
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86mA.PNG54.3 KB · Views: 49
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7mA.PNG54.3 KB · Views: 349
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DSC05676.JPG494.2 KB · Views: 383
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DSC05669.JPG437.4 KB · Views: 422
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DSC05677.JPG525.5 KB · Views: 493
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