[sdiy] filter cap needed?

[Simon Brouwer]

db schreef:
>
> I have a wallwart suppling 9vdc to a 7805 to reduce to 5v.
> All seems to work fine.
>
> Do I need capacitors on the 7805 5v out to gnd?
> The circuits I see all have some, but this seems to be ok without any.

It will reduce noise and improve line regulation, but it is not strictly
necessary.

-- 
Vriendelijke groet,

Simon Brouwer
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