[sdiy] Power supply spike

[ChristianH]

On Fri, 23 Feb 2007 15:40:05 -0000 harrybissell at copper.net wrote:
> If you get that large of a spike you might want to
> soft start the power supplies. You add resistors in series
> with the DC rails... then wait like one second for the voltage
> to rise. Short the resistors out with relays. This might remove
> all the audible thump during turn-on. As you have relays there
> anyway... disable the audio output at the same time (for free
> with an extra contact...)
> 
> H^) harry

Um, power switching and audio on the same relay? My gut feeling tells me
I wouldn't like that very much. Maybe with that 110 V toy electricity
that is merely tickling ;-), but over here with 230 V I prefer to keep a
safe distance from audio traces. 
I may be a bit over-cautious, but even after 30 years I treat mains
voltage with quite some respect. I keep careless messing to the low
voltage side <gr>

Christian