Until, at least, sometime in the early 2000's 90's King Radio (aka Bendix/King) was still selling NAV and COM radios using their own numeric panaplex type displays e.g. KX155, KX165. These displays were custom designed and fabricated in-house in Olathe, KS. To the best of my knowledge they were all neon orange monochrome. The gas used was a proprietary witches brew that included several radioactive trace elements. I recall seeing a prototype ILS indicator similar to the one referenced in this thread. I don't believe the King display was commercialized.
An ILS display shows deviation from the localizer (right-left guidance) horizontally and the glideslope deviation (up-down) guidance vertically. By "keeping the needles centered" the ILS will guide a pilot to the runway threshold. Such displays were also used for VOR navigation using only the right-left needles (or lit segments in this case). In the simplest case they would provide guidance to the VOR station and identify the cardinal radial direction that was being flown to reach the station. When executing a simple form of an instrument landing system (ILS) the pilot flies, at a particular altitude, along a "to" radial to find a particular VOR station. Once directly over the VOR the pilot flies on a specified VOR "from" radial until the localizer (right-left) and glideslope (up-down) needles move into the active range (no longer parked and "flagged" at the display extremes). >From there the pilot "keeps the needles centered" until visual runway confirmation is obtained. On Saturday, April 13, 2024 at 11:27:41 PM UTC-5 Audrey wrote: > The seller is the author of this article. > https://www.industrialalchemy.org/articleview.php?item=3247 > > On Fri, Apr 12, 2024 at 11:36 AM Nick Andrews <nickja...@gmail.com> wrote: > >> Never seen or heard about this one before. >> >> >> https://www.ebay.com/itm/276389569367?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=AkFpft62ST6&sssrc=2047675&ssuid=9S4jfnnKS4i&widget_ver=artemis&media=COPY >> >> Anyone heard of this or have one? >> >> -- >> > You received this message because you are subscribed to the Google Groups >> "neonixie-l" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to neonixie-l+...@googlegroups.com. >> To view this discussion on the web, visit >> https://groups.google.com/d/msgid/neonixie-l/CAJD4P-ivW5%3DSwf_3hXWVXdad%3DYzA89swwt%3DP%2BqRK2xEMKJ%2B5Gw%40mail.gmail.com >> >> <https://groups.google.com/d/msgid/neonixie-l/CAJD4P-ivW5%3DSwf_3hXWVXdad%3DYzA89swwt%3DP%2BqRK2xEMKJ%2B5Gw%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/42ea136c-7ed5-480f-9c29-2ba40025ac3an%40googlegroups.com.
