This dual-LED circuit indicates three signal levels. It was found in the January 1996 issue of Electronics Now magazine. The integrated circuit may be an LM339 or another comparator.
ROHM Semiconductor is featured in a new line of IR LEDs, Proximity Optical Sensors and Ambient...
This circuit uses one of the 6 CMOS inverters of a 4060 as a touch on / off switch. The power...
We found this circuit with an operational transconductance amplifier in the Motorola Linear...