Now we're ready to apply some of the electrodes that will slot into the headbox.

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We'll start with the 'ground' electrode which will be positioned on the prepared area on the neck/shoulder.

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Attach an electrode 'dot' to an electrode lead (if this hasn't been prepared for you) and peel the paper backing off the dot. Then stick it down on the prepared area of the neck/shoulder.

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Insert the plug into the GND slot on the headbox (the 5th input in from the front right of the headbox).