It's about an hour's worth of material and it is very concise.
Also here in Youtube playlist format: http://www.youtube.com/watch?v=8gvJzrjwjds&list=PLzqS33DOPhJ...
Another great channel for electronics basics is TheGreatScott: https://www.youtube.com/channel/UC6mIxFTvXkWQVEHPsEdflzQ
Another great channel for electronics basics is TheGreatScott: https://www.youtube.com/channel/UC6mIxFTvXkWQVEHPsEdflzQ