I think that it is time for a complete explanation about why mica cannot be used. Please see the following video. https://youtu.be/9r5NCVR_zYU Go to 14:00 to see Mr. Glass Slinger using a mica wafer to support the various cathodes inside of his famous "Dancing Cowboy" nixie tube. Later on in this video, the tube is shown lit up and working. The original B-7971 used mica. Mica has always been used extensively inside of all kinds of vacuum tubes. Please explain to me why all of a sudden there seems to be a need to re-invent the wheel? Why not stick with what is known through 100 years of experience to work? What am I missing here? What is the great difficulty with mica? Does it outgas a loat of contaminents as it bakes out? Mica is not that costly either, as far as I know. I have used it quite a bit making new diaphragms when restoring original Edison cylinder phonograph recorders. A discussion of the pros and cons of mica would be greatly appreciated. Thnaks -Chuck
On Monday, September 29, 2025 at 2:06:09 AM UTC-4 Rik Declercq wrote: > So called 'paper-clay' might do the trick. Basically white clay with paper > fibers in it, very strong, can be made very thin and flat, even up to the > point of translucency. > one can punch out tiny holes to later add soldering anchors etc. > (the fibers burn off while firing the kiln) > > On Sun, Sep 28, 2025 at 1:40 PM '[email protected]' via neonixie-l < > [email protected]> wrote: > >> Hello Sadudu, >> >> Sorry that it failed and thanks for sharing. >> >> > And this cup is made of.... Ceramics. >> >> So why not make the PCB / shape plate out of clay and bake that. >> Once baked, the clay can withstand quite high temperatures. >> And it will not deform once it is backed. >> Also, a test with this needs not be very expensive. >> Most likely there are quite a few "hobby-potorists" to be found to use an >> oven. >> >> Just a thought to ponder on... :-) >> > 28.1759059601866%40kpc.webmail.kpnmail.nl >> <https://groups.google.com/d/msgid/neonixie-l/1594599068.494628.1759059601866%40kpc.webmail.kpnmail.nl?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 [email protected]. To view this discussion, visit https://groups.google.com/d/msgid/neonixie-l/eca3989d-1310-4213-8552-c04a48e5e2ban%40googlegroups.com.
