tag:blogger.com,1999:blog-4758336167428675765.post3524047752709008559..comments2024-03-28T14:25:10.763+11:00Comments on .: Surface, SurfaceSouth Coast Railhttp://www.blogger.com/profile/06743351585350477874noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-4758336167428675765.post-6658927372834448342014-09-12T11:12:19.081+10:002014-09-12T11:12:19.081+10:00Check out these diode matrix boards: http://www.gm...Check out these diode matrix boards: http://www.gmrg.org.au/wall-const-2009-06.html<br /><br />"The eight circuit boards that will control the storage yard point motors. The top four boards are the diode matrix circuits, used to control which points need to be thrown, and in which direction they need to be thrown, when a storage yard track is chosen. The outputs from each matrix connect to one of the bottom four boards, the point motor driver circuits, which then provide the correct voltages to the Tortoise point motors."<br /><br />Cheers,<br /><br />MartinAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-4758336167428675765.post-44697037547031734862014-09-12T09:07:36.248+10:002014-09-12T09:07:36.248+10:00Jim,
you can still eat toast butter side down! Sti...Jim,<br />you can still eat toast butter side down! Still it works<br />BobSouth Coast Railhttps://www.blogger.com/profile/06743351585350477874noreply@blogger.comtag:blogger.com,1999:blog-4758336167428675765.post-43597990705888739722014-09-12T08:44:37.222+10:002014-09-12T08:44:37.222+10:00Bob, well what can I say. Except that the diodes a...Bob, well what can I say. Except that the diodes are usually placed on the opposite side of the board and not on the copper strip side. Oh well, start again, sorry.Jimhttps://www.blogger.com/profile/03955072127937780064noreply@blogger.com