Re: gEDA-user: Question for DJ about his alarm clock

[DJ Delorie <dj@xxxxxxxxxxx>]

> How do resistors help with that?  Or are there other relevant
> components not mentioned in the email?  (I'm just wondering whether I'm
> missing knowledge of the circuit or missing something electronic...)

Resistors in series with the power/ground lines, plus a cap across the
power pins.  I.e. a standard low pass filter.

http://www.delorie.com/electronics/alarmclock/mp3.sch


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