For what reason would anybody use a fastblow fuse in a PSU? They are to slow to protect any semiconductor and to fast to be of any good otherwise. A slow fuse can be rated lower and therby provide the best overall protection also in the long run and without any fear of gettn blown by short term peak currents.
that is pass aleph2 with hetsink cooling🙂
thats classA PURE classA😀
and its forone channel only🙂
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AudioSan, please forgiv me, but in a class A amp anybody in his rigth mind would try to put SENSIBLE sized caps as the first caps to not introduce to much higher harmonics. And for the peakcurrent mainly the first cap counts. This also would mean that you can choose a SENSIBLE sized transformer. Only 500-600W continous dc-power would call for a 1000VA transformer. And 500-600W of heat would either require forced air or watercooling. Are you really wasting this amount of power or just bragging?
wrong wrong wrong. peakcurrent is non exsistent. this is a constant current amp. it draws 350W continues. if you try that with a 500VA transformer it will get bloody hot. and you don't want more heat then it already is.
an as you said. the power grid is not constant. what better way to let the amp has a constant current then a big cap bank? it is a current bank afterall.
Are you possible talking about a output transformer? Then yes, it will be much bigger in class A. But for the powersupply you can use a smaller one. There is no need to use a high formfactor that would require a big transformer. You can dimension the transformer almost disregarding regulation and design for low harmonic content and dimension the transformer just to cope with the thermal issues.
Yes, caps are good, but only in class B is it required to use big caps because you HAVE TO HAVE good regulation and that does not allow to use much of a filterstage after the first cap. Therefore the formfactor is higher and you need a bigger tranformer to get good regulation.
In class A things are different, you can use even several filterstages and can get away with it quite easely without fear of ringing or lousy regulation and such.
And you can put the big caps at the end of the filter. But are they really needed there?
For what purpose?
In class A things are different, you can use even several filterstages and can get away with it quite easely without fear of ringing or lousy regulation and such.
And you can put the big caps at the end of the filter. But are they really needed there?
For what purpose?
no. this is SS not tube. and ofcourse a bigger transformer is better.
when in constant current the transformer (must) be atleast twice the constent current draw. 350Wx2=700VA and i desided for a litle more, just to get the transformera little cooler.
you realy don't make any sense.
maybe you should talk with Nelson Pass and tell him about all his wrong thinking over the last 4 decades? mr world champion!
my good!!!
my good!!!
AudioSan, I you do not understand what I am talking about just ask and I will explain so it will make sense to you.
There you go
And do you really thinck you made an improvement by choosing 400000 instead of 125000?
Do you understand the difference it makes ?
Why do you thinck he choose 125000 instead of a higher value?
And do you really thinck you made an improvement by choosing 400000 instead of 125000?
Do you understand the difference it makes ?
Why do you thinck he choose 125000 instead of a higher value?
who said i got 408.000uF for better performance? only your head.
but bigger is better.. until a point.
no i did it becouse i could. i got 23x68.000uF at a god price.
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