The Kr85 mark indicates that they have (or rather now have just a little, since the half life is 10.7 years) Krypton-85 mixed in the gas to help with the ionization
On Monday, April 15, 2024 at 6:09:42 PM UTC-4 Audrey wrote: > That's fascinating Neil, I have a few boring Bendix panaplexes and was > curious about their manufacture. I believe they're marked Kr85. > > On Mon, Apr 15, 2024, 5:47 PM Neil QQ <nei...@gmail.com> wrote: > >> 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+...@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 >> >> <https://groups.google.com/d/msgid/neonixie-l/42ea136c-7ed5-480f-9c29-2ba40025ac3an%40googlegroups.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/6e423ef4-db33-49a3-b32e-a10996ee34c9n%40googlegroups.com.
