333 / | HD | WAVE TRANSMISSION LINES AND NETWORKS |
1 | DF | PLURAL CHANNEL SYSTEMS {4} |
100 | DF | .~ Having branched circuits {6} |
101 | DF | .~.~ Including switching means {3} |
105 | DF | .~.~.~ Having mechanical switching means {2} |
106 | DF | .~.~.~.~ Using rotary switching means {1} |
107 | .~.~.~.~.~ For TEM lines |