This "project" was originally started sometime in 2010-2011 after a friend asked me if p channel devices could make an amp, i thought "why not?" and developed a circuit using only p channel mosfets in the output stage.
However the friend was unable to make the circuit work, so then i tried it, and after some fiddling around i managed to get it working, this was the results: P Channel mosfet amp - YouTube
Shortly after that video was taken, i more or less put this project aside and eventually forgot about it, until yesterday when i got a pm about it.
So today i decided to revisit this old project, said and done, i repopulated the board from the old project with the components that had since been taken and hooked up two IRF9540's.
A few pics: http://i.imgur.com/sQa9U.jpg http://i.imgur.com/JlTVM.jpg http://i.imgur.com/KqTRW.jpg
Power on, adjust bias and done. This is the circuit if anyones interested in trying it: http://i.imgur.com/A5zLE.png
In my opinion it actually sounds pretty good for what it is, so i might go all the way and build a stereo version.
And the second channel is done: http://i.imgur.com/hDTgX.jpg
And second channel is up and running.
However the friend was unable to make the circuit work, so then i tried it, and after some fiddling around i managed to get it working, this was the results: P Channel mosfet amp - YouTube
Shortly after that video was taken, i more or less put this project aside and eventually forgot about it, until yesterday when i got a pm about it.
So today i decided to revisit this old project, said and done, i repopulated the board from the old project with the components that had since been taken and hooked up two IRF9540's.
A few pics: http://i.imgur.com/sQa9U.jpg http://i.imgur.com/JlTVM.jpg http://i.imgur.com/KqTRW.jpg
Power on, adjust bias and done. This is the circuit if anyones interested in trying it: http://i.imgur.com/A5zLE.png
In my opinion it actually sounds pretty good for what it is, so i might go all the way and build a stereo version.
And the second channel is done: http://i.imgur.com/hDTgX.jpg
And second channel is up and running.
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And here are both channels up and running: http://i.imgur.com/xybFk.jpg http://i.imgur.com/xROrl.jpg
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