Hi Nattawa,
Maybe you could look at this amp http://www.diyaudio.com/forums/solid-state/216780-tt-amp-200w-8ohm-701w-2ohm-2.html#post3115503. It was never built in that configuration with capacitance multipliers(for OPS too) and all protection on the same board. It is combination of my TT amp and power supply regulator on the same PCB. You could use the cap multipliers part with protection and add that on your 200W CFA board.
I think that one pair of the power BJTs could be enough in the cap multipliers.
BR Damir
Has anyone input the schematic into Eagle? And would you be willing to share it?😀
I am going to climb the steep curve of learning Eagle
then I will be a 
WoW
Happy Thanksgiving to Everyone...🙂
I am going to climb the steep curve of learning Eagle
then I will be a WoWHappy Thanksgiving to Everyone...🙂
Those two PCB mount h/sinks look quite close - can they touch like that (post 342)?
Nice looking board BTW!
Nice looking board BTW!
It would be interested to compare simm and measurements results, my estimation is up to one decade difference. It's time to make it. 
Ready for inspection, I did not get any feedback on what more to add.
The Board is for "Testing and Development" it is not for use in the normal way. Here are some photos of how I will use the board and if anyone needs a similar Heat Sink, I have a few. I intend to use a small fan for high power testing when that part comes.
Please make what ever feedback statements that can improve the testing and development process. NOTHING is set in stone at this point.
The Board is for "Testing and Development" it is not for use in the normal way. Here are some photos of how I will use the board and if anyone needs a similar Heat Sink, I have a few. I intend to use a small fan for high power testing when that part comes.
Please make what ever feedback statements that can improve the testing and development process. NOTHING is set in stone at this point.
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Thanks for the kind words Alex, but I am totally indebted to you. Your sharing and showing me with your work and attention to detail makes anything I do amateurish at best.Hi Krisfr,
Very nice board have you layout , now you are the master ......
Realy nice Chris. Maybe it is good idea to make more distance between Q6 heath sink and R37 heath sink, just in case if those heath sinks are bit bigger. I am really waiting to see this amp singing.
Damir
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Thanks Bonsai, I took care of the touchy situation. Your work is the Gold standard for me. Looking forward to your next BIG project...Thanks again.
Hi Krisfr, perhaps rather trivial, but you seem to have two Q6's re component designations. One you have just moved, and another on the heatsink directly above.
Keith
Keith
Noted and corrected, Thanks for your eagle eyes, mine are about shot😀
What needs to be done to the 8 output device board to make it better? Anyone. It is not cast in stone, it can be remodeled, As much as I like the 4 device one, I really wanted to do the 8. My next iteration will probably be in Eagle if I can find it in compliance with my budget...there are some power supply boards that need to be done too.
