38 KHz IR transmitter using Astable Multi vibrator

                                                                   CKT Digram

The circuit is a simple IR transmitter operating in the 38 KHz, the frequency of most IR sensors used in TV. A simple IR transmitter can be made by the help of making a 38KHz Astable multivibrator an astable multivibrator can produce oscillations this oscillations can  be given to an IR LED then we can use it us an IR transmitter

                                

                           The Atable multivibratior can be built using a popular IC 555 generates output pulses with a frequency of 38 KHz. The output frequency can be set by VR exactly to 38 KHz.

                                                                            IR LED