A power surge protector is hardly the most exciting piece of kit you’ve ever seen on Tech Digest, but you’ll wish you had one if a mains spike destroys your flat panel TV and Sky HD box.

Supra intros their LoRad MD06-BS/SP (I don’t make these product codes up, you know), which is supposed to be unique in that the surge protection isn’t connected into the circuit until a surge occurs. This provides protection without introducing additional noise…