Originally posted by Lee Bailey:
I started building my own power cords using Venhaus shielded twisted pair 12 gauge wires. I then used their Flavor 3 design.
If you'd like to see visually how much energy is transmitted outside of a power cord, just get your self a Greenlee Non-Contact Voltage Detector(I believe that's the name). It is a small, battery powered probe that detect AC voltages starting at around 60 volts AC. When it detects one, the led lights up and it emits a high pitch tone. When I use the Flavor 3 cords, there is no detected voltages, though I can pick up a voltage within a few inches of an unshielded power cord. So, whatever devices I have that use a detachable power cord, I've replaced with the Flavor 3 variety. The only complaint I have is that the Venhaus cables are pretty stiff. I don't go overboard on the high dollar plug ends.
The radiated AC voltage from a power cord is not going to have any effect on the internals of a piece of equipment unless that equipment is very poorly designed. In sensitive circuits, that's the reason for outboard power supplies.
Just being able to detect the radiated electromagnetic field of AC verses not being able to means nothing. If you can tell me exactly which circuits would be effected and the technical means of the effect, I'd like to hear about it.
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