Here is a HP 8016A word generator sending 6-bit parallel binary to a HP 1607A logic state analyzer, which is using a HP 130C oscilloscope for display. The 130C is an old model, and doesn’t have Z blanking, which is why the binary is being drawn in ‘cursive’ on the oscilloscope screen. The 8016A is also sending a clock pulse to both the 1607A and a HP 5326A counter. The 8016A and 1607A are companion instruments, designed to be used on either end of an IC test subject. The 8016A generates a …