This is the receiver for the earlier system published in the August 1988 Radio Electronics magazine. Optical capabilities can be used for extended range.
The TLC555 is the CMOS equivalent of the well-known 555 bipolar transistor. It can be used in the...
This circuit, which was common at the time, was found in the February 1973 issue of Radio...
This circuit was found in the used integrated circuit manufacturer's manual. The table beside the...