Here's the LASER pointer AM modulator, QRO version, as promised in last post!
The receiver used in tests is the same I've been using in previous tests except I changed the 2 green LED's for an IR diode.
If the LASER is pointed directly at short distance directly to the diode the receiver (LM386) get's overloaded, just point slight off-side.
I'll stop for now this light comunication tests, was just to test the concept. I also tested the AM modulator circuit against a small crystal oscillator buffer and it worked nice.