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Accaptable ripple voltage

1/26/2005 11:47 PM
Brett	Accaptable ripple voltage Hi. I'm building my first valve amp, Doug Hammond's Firefly. Thanks also to Paul Marossy for his excellent layout and info for this amp. My question is; my calculation of the ripple voltage is that it is very small (due to the small current drain). Much less than a volt. I realise that less is better, but how low is good enough. The caps are a significant cost in this amp. 10uF would cost a lot less and take up much less space than the 47uFs specified. Any suggestions?? thanks

1/26/2005 11:47 PM

Brett

Accaptable ripple voltage

Hi.
I'm building my first valve amp, Doug Hammond's Firefly. Thanks also to Paul Marossy for his excellent layout and info for this amp.

My question is; my calculation of the ripple voltage is that it is very small (due to the small current drain). Much less than a volt. I realise that less is better, but how low is good enough. The caps are a significant cost in this amp. 10uF would cost a lot less and take up much less space than the 47uFs specified.

Any suggestions??
thanks

Replies:

Wild Bill Brett, there's more to the story th... -- 1/27/2005 6:43 AM
anonymous Power supply ripple voltage falls u... -- 1/28/2005 8:27 AM