Chadtronic was a YouTube channel which consisted of reaction videos and reviews, He made a bunch of videos which have since been either privatied or deleted
Chadtronic made videos on Custom Amiibo, Oculus Rift and Let's Play's which were uploaded in 2014-15. However for unknown reasons Chad deleted/privated these old videos. As of 2016 the oldest video accessible on his YouTube Channel is the Mario Teaches Typing Review Video. However using the Wayback Machine allows you to see the old videos on his channel, Unfortunately they cannot be watched.