This circuit for a 16-channel infrared transmitter was found in the August 1984 issue of Radio Electronics magazine. The circuit is powered by a 9 V battery.
September 2016 - can already be found at Mouser Electronics new integrated circuit from Texas...
Found in a 90s Popular Electronics, this circuit uses common components. The power transistors can be...
This circuit, suggested by Siemens, allows the activation of 24 V solenoids from TTL LSL signals,...