World's smallest lightbulb flasher? Flashing Light Prize 2017

Video Channel
Please help us to find bad videos. Broken or unappropriated video content?
I built an extremely small lightbulb flasher and describe the design process and challenges. This video is free for Patreon subscribers, and if I win the contest prize, I will donate the winnings to a STEM education charity.
2017 Flashing Light Prize: /
Source of micro light bulbs: /
Single Schmitt inverter:
The SR416 cell is the smallest primary power source available:
Spot Welder:
Big thanks to Tektronix for very useful test gear. Much appreciated!
Applied Science on Patreon:
Fpvracer.lt is not the owner of this text/video/image/photo content, the real source of content is Youtube.com and user declared in this page publication as Youtube.com user, if you have any question about video removal, what was shared by open community, please contact Youtube.com directly or report bad/not working video links directly to video owner on Youtube.com. Removed video from Youtube.com will also be removed from here.