On Tue, 22 Dec 2015 10:27:38 +0000, Eiron
wrote:

On 22/12/2015 09:54, Don Pearce wrote:

I'm just thinking of the cost of that huge mains transformer - and the
heat sinks.

Get with the 21st century, grandad!
Switched mode PSUs are the in-thing now. :-)

I've designed them, so yes, I'm with that. But did you know that
"normal" power supplies are also switch mode? They just switch at
100Hz instead of a few hundred kHz.

d

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