Hi
I am using a NPN transistor as a switch. I am taking the base from a LED. My problem is their is a constant voltage of 1.87v when the LED is off(1.97v when it is on). I was thinking of a zener diode of 1.9v to drop the voltage but am unable to source one. Is their an alternative way? My knowledge of electronics is very limited and appreciate any help.
I am using a NPN transistor as a switch. I am taking the base from a LED. My problem is their is a constant voltage of 1.87v when the LED is off(1.97v when it is on). I was thinking of a zener diode of 1.9v to drop the voltage but am unable to source one. Is their an alternative way? My knowledge of electronics is very limited and appreciate any help.