[R-390] OT: Filterfor 9VDC PS

Barry n4buq at knology.net
Mon Jun 9 15:54:33 EDT 2008


I'm thinking of making a 9VDC, 1A supply from a 6.3VAC transformer, 
full-wave bridge, and pi (CLC) filter.  The hitch is the choke.  I can find 
a reasonably-priced 35mH choke rated at 2A, but not much of anything else 
that will handle nearly the current I need (unless I'm willing to "invest" a 
LOT of money for it and I'm not).

Will 35mH be worth the effort or will I be just as well off without it?  The 
PS will be asked deliver 510mA or 830mA (depending on the radio's settings).

Thanks,
Barry - N4BUQ 



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