Hello

How can i make simple circuit with a infrared phototransistor and a LED, so the LED lights up when a infrared source like a remote control is pointed at it? The source should be a 9V battery?

I guess that this is quite simple, but i am new to electronics and try to get small projects to work and learn from them.

 

See if this will work for starters.

 

It's working perfect. Thank you.

I did not have any 470 ohm resistor so i mounted 220 ohm and 330 ohm in serial. Can i remove the 220 one?, and what will the difference be if any?

 

It might be best to keep both resistors, so as to not overdrive the LED with too much current.

Probably the smallest single resistor would be around 360 ohms that puts close to 20mA. through the LED, which is about max.