This circuit was found in a PE Hobbyst Handbook of 1989. It uses a black light fluorescent of the time. Small fluorescent black light from 1 to 4 W can be used.
This circuit is from an old American publication. It divides a 40 to 60 MHz TTL signal by integer...
The SN72741 integrated circuit is nothing more than the version of Texas Instruments of the known...
Found elsewhere in this section, but from other sources, this circuit is from a 1964 Electronic...