I'll start:
(Besides eevblog you already know about that one.)
Tech Ingredients:
US based (Maine?) English, A guy that makes all sorts of crazy inventions. Excellent production video quality and editing. Updates frequently. Covers: Home made pumped dye lasers, jet engines, huge drones, speakers, helium, electronics and more. Guy has a HUGE budget which makes his projects almost unlimited for home based experiments
Very technical but the lay person can also understand it. 20-30 min videos. Shows you step by step for some topics like carbon fiber construction.
Currently active an answers comments
https://www.youtube.com/user/TechIngredients