Cheap tweaks...What would YOU reccomend?

Its not the colours nor the polarities that confused me, just the nonsense explaination for why this works!

Salut,

Maybe it is because we now have "red" and "black" current?!

AC, of course. Speakers don't work on DC. Its the alternating of the current in the coils (dynamic speakers) that makes the speaker move back and forth (the principle is different on electostatic spekers, but still depends on the alternating of the voltage). If you attach a battery (9v), which is a source of DC, to the speaker it will move to one position, front or back, depending on its polarity.

Now do you understand why it is nonsense to talk of negative and positive conductors and using different types of materials for these supposedly different conductors?

Salut,

Infinity, how do you measure these 25-30? changes, especially the improvement to accuracy?

Tin_Cup, the only thing that amazes me about fuses is the fact that people are amazed by the improvement that an expensive fuse makes. That and the fact that some people seem to think that the direction of the fuse (or cable for that matter) makes a difference, even though AC current travels in both directions every 1/50 or 1/60 ieth of a second!

That is correct, current is neither positive nor negative, but voltage is + or -. Current can go in different directions in the same conductor depending on the difference in potential (voltage) at the ends of the conductor. That is why direct current is called that - the voltage difference from one end of the conductor stays essentially the same and the current flows in the same direction all the time. In Alternating current, the voltage difference changes and alternates between + and - from one end of the conductor to the other, so the current alternates in its direction. Current has no polarity.

Is one expected to take this seriously? "Positive" and "negative" currents!!? I suppose alternating current is a third type and direct current a fourth?!

Salut Bob P.