This is the transmitter for a remote-control system published in the August 1986 issue of Radio Electronics magazine. The circuit uses two 555 CMOS transistors to drive two series LEDs.
This is the circuit published in the August 1973 issue of Radio Electronics magazine announcing its...
This is the target for the CB18793E infrared firing gun. The circuit can be powered by voltages from 5...
Found in a 90s documentation, this circuit makes use of D1, a switching diode that is uncommon today....