3 ms·

I feel so sorry for the kid :( I used to make my own beeping LED flashers with BC109C transistors and AA batteries when I was his age, and brought them to sch

by noipv4 11y ago

I feel so sorry for the kid :( I used to make my own beeping LED flashers with BC109C transistors and AA batteries when I was his age, and brought them to school to show my friends how cool electronics is.