This is 100W CFA with Input Stage active load (current mirrors) and even lower distortion, below 1 ppm at all frequencies and all output levels . The Loop Gain is about 95 dB at 20 kHz, and I don't know any amp of any technology with so high NFB up to 20 kHz.
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My version of mosfet CFAmplifier
If there is no problem, i would like to post here my version of this amplifier
If there is no problem, i would like to post here my version of this amplifier
Attachments
Last edited:
Dadod, fyi your links in post one don't work, perhaps because they don't link to the post in question but rather a page which depends on a user's selected setting for number of posts per page...
Yes but what is your UserCP setting for "number of posts to show per page"? Mine is set to 50. All the links in post 1 just take me to the last page in the thread.
Then there's little point of a link 😉 If you right click on a post number you can copy the link directly to that post.
Ok. Fine. Just recognise that they won't work for anyone who has changed their UserCP for "number of posts per page". Up to you.
Yes that's my point. Change that setting and the links won't work anymore. It's up to Dadod, it's his thread, but I thought I would point it out.
Strange. If you did indeed link to the exact post it should work. It does elsewhere e.g. all of Toni's links here work just fine.
I just looked at your last link (RNMarsh measurements):
If I copy the link you have the following. xxxx rather than http is needed to force the forum software to display the url code rather than a url link.
xxxx://www.diyaudio.com/forums/solid-state/243481-200w-mosfet-cfa-amp-79.html#post4314881
Whereas copy link by right clicking on post 787 produces:
xxxx://www.diyaudio.com/forums/solid-state/243481-200w-mosfet-cfa-amp-16.html#post4314881
Both have the page number embedded. It's on page 16 for me and I assume page 79 for you. The link should adjust for a given user's cp setting.
For example, Toni's last link in his first post takes me directly to the relevant post which is on pg 34 given my User CP settings. The link is:
xxxx://www.diyaudio.com/forums/solid-state/235194-2stageef-high-performance-class-ab-power-amp-200w8r-400w4r-34.html#post4776326[
Someone with the default or other posts per page setting will see a different number in lieu of the "34".
I just looked at your last link (RNMarsh measurements):
If I copy the link you have the following. xxxx rather than http is needed to force the forum software to display the url code rather than a url link.
xxxx://www.diyaudio.com/forums/solid-state/243481-200w-mosfet-cfa-amp-79.html#post4314881
Whereas copy link by right clicking on post 787 produces:
xxxx://www.diyaudio.com/forums/solid-state/243481-200w-mosfet-cfa-amp-16.html#post4314881
Both have the page number embedded. It's on page 16 for me and I assume page 79 for you. The link should adjust for a given user's cp setting.
For example, Toni's last link in his first post takes me directly to the relevant post which is on pg 34 given my User CP settings. The link is:
xxxx://www.diyaudio.com/forums/solid-state/235194-2stageef-high-performance-class-ab-power-amp-200w8r-400w4r-34.html#post4776326[
Someone with the default or other posts per page setting will see a different number in lieu of the "34".
You need to edit your links like following example.
Original link copy which leads to problems if user has different page size settings:
Working universal link - just remove the (wrong calculated) page number (e.g. "-34") before ".html":
BR, Toni
Original link copy which leads to problems if user has different page size settings:
Code:
www.diyaudio.com/forums/...-amp-200w8r-400w4r-34.html#post4776326
Code:
www.diyaudio.com/forums/...-amp-200w8r-400w4r.html#post4776326