diff --git a/quad-igbt/readme.md b/quad-igbt/readme.md
index 61c34c7..038f244 100644
--- a/quad-igbt/readme.md
+++ b/quad-igbt/readme.md
@@ -2,4 +2,6 @@ x4 coil driver
 
 For instance ISL9V3040S3S
 
-See also https://github.com/rusefi/rusefi/tree/master/hardware/DDPAK_breakout
\ No newline at end of file
+See also https://github.com/rusefi/rusefi/tree/master/hardware/DDPAK_breakout
+
+https://www.youtube.com/watch?v=TUJzp6ig_bQ