Did anyone else use the LM3909 chip to build an LED flasher, back in the day? It would blink once a second for 2+ years on a single D-cell battery. https://ha

Did anyone else use the LM3909 chip to build an LED flasher, back in the day? It would blink once a second for 2+ years on a single D-cell battery. https://hackaday.com/2018/01/04/there-once-was-an-ic-dedicated-to-blinking-an-led/ https://hackaday.com/2018/01/04/there-once-was-an-ic-dedicat...