Date   : Fri, 16 Oct 2009 10:58:04 +0100
From   : mu.list@... (Mark Usher)
Subject: Dual drive power supply

Hi all,

I've noticed that the power supply on my dual drives is making a bit of a
"noise" - audible, not electrical. Best described as an oscillating hum.

With the previous discussions on the Beeb Power Supplies, I wondered if this
was a sign the capacitors on this psu were also starting to show their age
and should be replaced. Or was it just a bad design in the first place.

-Mark