Indeed, I like these nixies. If you make a board, I'll get some more 28's and build it. This is a FANTASTIC find! Congratulations!
On Thursday, May 23, 2019 at 12:15:55 PM UTC-4, Tyler Bourne wrote: > > The clock has arrived! It's Huge! > It seems like the clock was in the process of being stripped for parts > when it was saved. The tens of hours board was covered in nasty flux, > probably the plumbing kind. I've cleaned it up and put it back in. > I've created a schematic for the display board and will start working on a > replacement. While the display boards are all the same the control boards > attached to the back of them are all different depending on which digits > are needed. I can tell this is a 12 hour clock since the tens of hours > digit can't form a 2, interestingly most for the tubes on that board have > never been used. > Since the display boards and the controller boards are separate I can > replicate the display board the way it is. I will create a replacement > control board for my clock and will also create a more modern control board > for use with the spare display boards I will have. > > The IN-28 is an odd nixie, it runs at a higher voltage and has a control > grid. All the groups of control grids are connected to the HV supply > through a 3.9M resistor and to the chips through a 1M resistor. I'll have > to figure out what all these chips are and find a modern equivalent. > If any Russian speaking members of the group can help identifying the > chips I would be super grateful. > > -- 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/23cd4f99-3a3e-497f-b5ad-a57b3e2f0fe1%40googlegroups.com.
