On Sat, 21 Jan 2017 18:03:03 +0000, Lee
wrote:

On 21/01/2017 17:56, Lee wrote:
On 20/01/2017 14:41, Brian Gaff wrote:
Have you also checked to see what interference they can chuck out.
some are
terrible, one assumes the dreaded switch mode psu.
Brian


Most of the more recent ones seem to be capacitive dropper...

^^^^ "some" not "most"

As a matter of interest, why to the 12 Volt ones seem to be more
problematic than the mains ones?