In Howard johnson article on serpentine delays. For 1ns rise time signal the maximum useful coupled-switchback length is arrived as about 1 in. (2 in. round trip). Is this 1inch; Is the width of serpentine structure ? or the total length of U ?. Please let me know. Thanking You Senthil Selvam.V ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List archives are viewable at: //www.freelists.org/archives/si-list Old list archives are viewable at: http://www.qsl.net/wb6tpu