[Kopipaste] induction loop

[kopipaste at machineaecrire.com]

"For the ambitious: try wrapping one or two turns of wire around the whole
house and connect the loop to the output of an audio power amplifier (one
channel of a stereo should work). Add a 4 ohm, high wattage resistor in
series to protect the amplifier. You should be able to pick up the magnetic
field fairly easily anywhere within the loop with the power amplifier
supplying just a few watts of power."
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