Nice work Michael!! (As usual!) Good to know they fit the board, I stlll have to make mine up....
Cheers, Nick Sent from my iPhone > On Jul 26, 2021, at 06:54, MichaelB <badni...@badnixie.com> wrote: > > > Here they are in a black NixiSat with a finished base. Still have to make > taller colon towers, but nevertheless, stunning, I think! > > > <D2A9DEC8-D61C-4189-BB8E-87EF2527952A_1_105_c.jpeg> > > >> On Monday, July 26, 2021 at 2:20:20 AM UTC-7 Dalibor wrote: >> Hi! >> >> 8k2 value is proven and totally safe when used with 170-180V DC. Recently I >> updated the specification for our tubes and decreased the minimum current >> from 5mA to 4.5mA. The currents are different for every digit anyway - we >> need to specify this as well for the customers who build the clocks with a >> current source. There is not a big difference in lifespan/risk of cathode >> poisoning, it is more about balancing the brightness of the digits. >> >> Regards, >> >>> On Sunday, 25 July 2021 at 18:48:37 UTC+2 gregebert wrote: >>> Just to be safe, I suggest you measure the voltage drop across the anode >>> resistor, and use Ohm's law to compute the current. For an 8.2K anode >>> resistor, and a current of 6mA, the voltage-drop should be around 50V. If >>> the voltage is below 40 volts, your anode current is too low because it's >>> less than the datasheet minimum-current spec of 5mA and you run the risk of >>> cathode poisoning. >>> >>> I use an actual current-regulator in my designs, rather than just a >>> resistor, so that variations in tube characteristics and supply voltage >>> dont affect the current. >>> >>>> On Saturday, July 24, 2021 at 3:30:00 PM UTC-7 MichaelB wrote: >>>> Still have to build the taller colon towers, but I was pleased to see that >>>> these work as possible replacements for the real thing. I used 8.2K Anode >>>> resistors vs. the 10K's Thomas used to recommend for the Z568's. And since >>>> they're taller they require a taller top, as an aside. >>>> >>>> >>>> >>>> >>>> >>>> >>>> > > -- > 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/8fa1d1e9-26df-489a-b73b-5b7c056a526dn%40googlegroups.com. > <D2A9DEC8-D61C-4189-BB8E-87EF2527952A_1_105_c.jpeg> -- 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/97EB241C-015B-4158-8A4E-0F87D1CC4B1C%40gmail.com.
