This "in line" video delay utilizes front mounted toggle switches and a fine trimmer to adjust video delay parameters; it is useful in matching video sources with varied cable runs. A video delay will take the place of the mound of coiled coax that some studios use to time equipment.
Toggle Switches
Toggle switches are used to adjust the main timing parameters.
Trimmer
A fine "trimmer" adjustment is available to make small adjustments to the delay signal.