Wire before the 390 ohm resistor @boyannedkov Maybe it is 4 and the diagram shows wrongly the wire before thr 390 ohm resistor View on X → Share this: Share on X (Opens in new window) X Share on LinkedIn (Opens in new window) LinkedIn Share on Reddit (Opens in new window) Reddit Share on Facebook (Opens in new window) Facebook More Share on WhatsApp (Opens in new window) WhatsApp Share on Telegram (Opens in new window) Telegram Share on X (Opens in new window) X By Martin | May 22, 2020 | X post | ← Power consumption to color indicator And that was of course a joke →