Do you mean the gate stoppers?
Yes I know that in many design's with FET's the gatestoppers are selected this way to achieve an equal time constant between N and P channel.
Have you any idea for good the values for the 2SK1530 - 2SJ201 Fet's?
Greetz
Yes I know that in many design's with FET's the gatestoppers are selected this way to achieve an equal time constant between N and P channel.
Have you any idea for good the values for the 2SK1530 - 2SJ201 Fet's?
Greetz
Can someone help me out with post number 83 from next thread? I'm wondering what causes the strange rising shape when using a 10kHz square wave.
First I thought that the input impdance of the amp was to low, I've tried putting a 22K resistor in series with the input and left the 10µF High pas cap out. All without succes.
http://www.diyaudio.com/forums/solid-state/198209-amp-design-subwoofer-9.html
Schematic post number63:
http://www.diyaudio.com/forums/solid-state/198209-amp-design-subwoofer-7.html
First I thought that the input impdance of the amp was to low, I've tried putting a 22K resistor in series with the input and left the 10µF High pas cap out. All without succes.
http://www.diyaudio.com/forums/solid-state/198209-amp-design-subwoofer-9.html
Schematic post number63:
http://www.diyaudio.com/forums/solid-state/198209-amp-design-subwoofer-7.html
Just looking at the schematic. The same grid resistor for N and P outputs?
Hi tvrgeek,
yes the grid resistors on output are the same value why it's not correct? Thank you! Maxpou
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Hi tvrgeek,
yes the grid resistors on output are the same value why it's not correct? Thank you! Maxpou
HI guys,
nobody can tell why? I'm not sure, but I think that because the input capacity of my mosfets are not the same and the same time the cutoff frequency. Maxpou
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I think its the resistor/input capacitance of the mosfets time constant that should be the same, and since n and p devices (even complimentary pairs) usually have different input capacitances the resistors should be different.
I think its the resistor/input capacitance of the mosfets time constant that should be the same, and since n and p devices (even complimentary pairs) usually have different input capacitances the resistors should be different.
Hi cbdb,
thank you for reply, but how do I determine the good value? Maxpou
Hi cbdb,
thank you for reply, but how do I determine the good value? Maxpou
HI guys,
somebody can help me? Thank you! maxpou
Hi Maxpou,
Look at post nr41. I hope this can help you.
http://www.diyaudio.com/forums/solid-state/64685-complementary-diff-input-jfet-bjt-cascode-5.html
Greetz
Look at post nr41. I hope this can help you.
http://www.diyaudio.com/forums/solid-state/64685-complementary-diff-input-jfet-bjt-cascode-5.html
Greetz
Hi Maxpou,
Look at post nr41. I hope this can help you.
http://www.diyaudio.com/forums/solid-state/64685-complementary-diff-input-jfet-bjt-cascode-5.html
Greetz
Thank you for reply Bensen,
I read quickly, I don't have much time for the moment but because I have a source follower as driver I can have the same value for grid resistor. You can confirm it? Thank you! Maxpou
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