hellp dirty hirry amp?

zakzak · 17th July 2008, 11:24 AM

hellp for other changes

wg_ski · 17th July 2008, 02:32 PM

What? The base stoppers? Whether they're needed or not depends on how clean the layout is. With MJ1502x's, if the pcb is as clean as Fotios' is, then you don't need them. If you'll have wires running all over the place you probably will. If you've got anything in there that can make the output stage less stable - long leads running to the reservoir caps, more than two channels sharing the supply, or any sort of rail modulation you'll need them as well.

As for using the full-size driver transistor, one has to wonder why Fotios used the lower power version in the first place.

sakis · 17th July 2008, 03:33 PM

fotios directly for anything you want i belive

you will find that he is a very nice and helpfull guy

(presuming that you are not willing to alter his design )

17th July 2008, 03:33 PM	#3
sakis diyAudio Member Join Date: Jan 2006 Location: nea makri athens greece	you may ask fotios directly for anything you want i belive you will find that he is a very nice and helpfull guy (presuming that you are not willing to alter his design ) __________________ SERVICE ΙΑΠΩΝΙΚΩΝ ΜΗΧΑΝΗΜΑΤΩΝ ΗΧΟΥ www.eastelectronics.gr

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17th July 2008, 02:32 PM	#2
wg_ski diyAudio Member Join Date: Oct 2007	What? The base stoppers? Whether they're needed or not depends on how clean the layout is. With MJ1502x's, if the pcb is as clean as Fotios' is, then you don't need them. If you'll have wires running all over the place you probably will. If you've got anything in there that can make the output stage less stable - long leads running to the reservoir caps, more than two channels sharing the supply, or any sort of rail modulation you'll need them as well. As for using the full-size driver transistor, one has to wonder why Fotios used the lower power version in the first place.

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