Colby Instruments, founded in 1977 by Dr. Siegfried Knorr and Dr. Betty Chang, specializes in creating high-precision programmable delay line instruments. Their product line includes the X Series of Precision Programmable Delay Line Instruments and Phase Shifters, offering resolution to 0.25 picoseconds and bandwidth up to 18 GHz. These instruments provide variable, programmable, and repeatable delay with the highest precision resolution, catering to industries like aerospace, radar, semiconductors, fiber optics, and particle accelerator labs. Colby Instruments is known for delivering customized delay line products with proven reliability and superior performance, ensuring precise timing and synchronization for electronic signals in various applications.