Question: is the anode red or black?
Answer: Anchor (electrode): Referring to the Cathode (negative, black) electrode. Active (electrode) : Referring to the Anode (positive, red) electrode. Anodal: A descriptive term referring to the Anode (positive, red) electrode. Anode: In tDCS, the positive (+) “stimulating” electrode, usually indicated with the color red.