While our PSU
hall of shame thread is fun I thought It'd be fun to have a ripple hall of shame thread too
I'll go first out, it's an industrial PSU that offers +15v -15v -5v +5v rails.
However it has been mounted on a frame with DC/DC converters for producing +12v and -12v as well.
The caps for this have gone
a bit high ESR 
The measured ripple is around 1700mV, or 1.7v!

After recapping
the ripple is gone, also note that the scale on the scope is 50mV/div instead of 500mV per div in this shot

-And that's how you know you have a qualifying...
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