Cross-track distributor for video signals

摘要

Switching cross-points between input and output video lines each consist of a series connection of oppositely poled diodes to the common connection of which a resistor is connected through which forward current for both diodes is selectively provided through a random access memory (RAM) controlled from a remote location. In the switched-off condition the current drain is negligible, and in the switched-on condition it may be as little as 5 mmA. Low-capacitance diodes make possible the holding of cross-torque to very low levels.