# Testing first note with video embed from siasky <iframe width="560" height="315" src="https://emb.d.tube/#!//('files':('sia':('vid':('src':'AACWznxNPlXd5wxuNRhQiZqpy6xMkf-cJx3qTqBxlxG12w'))),'dur':'53','thumbnailUrlExternal':'https:!!i.imgur.com!cS7aQPq.png','thumbnailUrl':'https:!!i.imgur.com!cS7aQPq.png','nsfw':0,'oc':0,'tags':~'dtube','oscillator';)" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> testing 1uF Capacitor my frist oscillator or pulse generator ... followed and modified circuit in this video [Adjustable Flashing/Blinking LED circuit on Breadboard | 555 Timer Project](https://youtu.be/TTQnhIkw4Bk) and testing hosting video file in siasky https://siasky.net/AACWznxNPlXd5wxuNRhQiZqpy6xMkf-cJx3qTqBxlxG12w then in d.tube and peakd using hive log in https://d.tube/#!/v/ooakosimo/20ogdd159xk https://peakd.com/soundart/@ooakosimo/my-first-oascillator-testing-1uf-capacitor