This circuit was found in a Popular Electronics from the 90's. The CMOS integrated circuit used is not very common nowadays. The range depends on the infrared LEDs. R7 can be changed.
Molex discrete wiring and cabling solutions with applications in consumer electronics, commercial...
This circuit consists in a full-wave bridge rectifier or Graetz Bridge as its is also called. The...
This circuit is used to convert audio signals from na amplifier into infrared modulated signals....