Colby Instruments, Inc.

Originally founded in 1977 by Dr. Siegfried Knorr and Dr. Betty Chang, our first products were focused primarily for the microwave and RF market. In the first 10 years of operation, we introduced a number of very high-speed pulse generators and clock drivers from DC to 20 Gb/s with transition times as low as 12 picoseconds. The most outstanding performance characteristics were high stability and extremely low displayed trigger jitter. Our most popular pulse generator (Model PG1000A) offered performance (0 to 1Ghz pulse with <200 ps rise time for ECL) and value unmatched by any other product on the market. In 1988, Colby Instruments introduced a new product line of Precision Programmable Delay Line Instruments and Phase Shifters with resolution to 0.25 picoseconds, and bandwidth from DC to 18 GHz (DC to 40 Gb/s NRZ). These delay lines ( X Series of products) are free from all noise sources, including phase noise and jitter since these are completely wideband passive devices.