I had one of these many years ago and if I remember correctly now it is a resistor of some 100k, or perhaps it was closer to 1Meg, as it just limits the current flowing in the trigger circuit. You can google these and find circuits like the ones below:
https://tubes-store.com/images/mtx90_02.jpg (I can recommend a high value resistor from 100k and up on the trigger pin so you don't touch any live parts accidentally! It will also protect a little bit if the tube shorts out) http://www.elektronika.lt/schemos/ivairios/61/jutiklinis-jungiklis-su-mtx-90/ (this is a Doorbell, use Google Translate from Lithuanian to English) /Martin On Friday, 16 April 2021 at 20:48:38 UTC+2 Terry Bowman wrote: > > On Apr 16, 2021, at 1:36 PM, Keith Moore <nixie...@gmail.com> wrote: > > Did you get any more information on these? > > > I'm all ears as well. > > This seller just put up three BIN listings. They appear to be identical > (you may have to scroll down the page): > > https://www.ebay.com/str/robotube?_trksid=p2047675.l2563 > > > I wish now that I'd bought some of the ones with yellowed plastic. The > light probably shines through unlike the white ones that are opaque. > > > Terry Bowman, KA4HJH > "The Mac Doctor" > > "If only you could see what I've seen with your eyes."—Roy Batty, *Blade > Runner* > > -- 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/a60e1d74-45e0-4d75-bb5c-1a1f95305a1bn%40googlegroups.com.
