Improved fading LED on off using NPN BJT 2N3904 and astable mode 555 timer electronics circuit

   / electronzap     / electronzap   https://electronzap.com/   / electronicsstudy     / electronzap   https://www.amazon.com/shop/electronz... As an Amazon Associate I earn from qualifying purchases. Americans should check out that link! No extra cost to you! Fading an LED on and off using a capacitor directly while switch by a 555 timer didn't work out as nicely as I thought it would. So in this video I improve the circuit by using a much lower value capacitor to control how much current a 2N3904 bipolar junction transistor (BJT) lets pass through the LED. #electronics #BJT #2N3904