00:00 to 2:00 Theory
2:00 to 10:00 Inverting Level Shifter
10:00 to 19:00 Commong Gate and Non Inverting Level Shifter
19:00 to 24:00 Accelerating Capacitance level shifter
24:00 to 29:00 IC Texas Level shifter
Schematic here:
https://drive.google.com/drive/folders/15Lclys1pTiaG8YnmQzBdtCN8Ndxpkz2k?usp=drive_link