This reader with TTL logic compatible output uses an LM139 comparator. The circuit was found in the 1994 National Semiconductor Linear Applications Handbook.
This circuit can be used with the 27 MHz transmitter from the previous circuit in a remote-control system...
The Texas Instruments PLLatinum ™ synthesizer can be obtained from Mouser Elecgtronics to generate...
August 2017 - Mouser Electronics is announcing the availability of the new ON Semiconductor CMOS...