There was once a thread on this group, where this topic was discussed - 1. will undercurrenting tubes actually decrease their life and 2. does multiplexing affect tube life and how. As far as I remember, the poisoning problem of undercurrented tubes was mentioned there.
W dniu wtorek, 3 października 2017 21:08:15 UTC+2 użytkownik bani napisał: > > On Tue, 3 Oct 2017, Paul Andrews wrote: > > Make sure your wall wart is pumping out a steady voltage close to that > required - you would need an oscilloscope. I have heard that this can be a > problem for these clocks. > > > > I’m also not a big fan of running tubes near the bottom range of their > current specs. It seems to lead to more cathode poisoning. There are > various threads where this has been discussed in great detail - with > evidence. > > > > Apologies if this all sounds like hearsay, but it is based on the > conclusions of similar threads. > > Is the way the tubes are being driven possibly a factor? > > I have a tubehobby kit and my IN-18 have been constantly running for > almost a decade and the digits still look basically brand new. > > It multiplexes them at a relatively low frequency so there's an audible > whine from the tubes, the only downside to the kit. > > -Dan I'd like to get the code, too. Not only I'd like to have a nixie healer, I also just want to start using a Wemos board I purchased some time ago, but never had the guts to start actually playing with it. BTW. The clock will draw this current on average, but it will do so in a sawtooth form due to boost converter. You'd need a very large capacitance on the board to smoothen it. However, you have measured the voltage and current of the nixies, right? If these two parameters are correct, then it means the boost converter is working properly. W dniu środa, 4 października 2017 00:21:37 UTC+2 użytkownik Richard M. napisał: > > You could buy this one: > http://www.ebay.com/itm/262488260835 > so you would already have a housing, a 125-180V high voltage supply and an > IN-18 socket. > Just add an Wemos D1 mini pro ( > https://wiki.wemos.cc/products:d1:d1_mini_pro) > And voila, you've got your own, "app controlled" Nixie de-poisoner. :) > I can give you my source code, if you like. > > I just checked my power supply. It's working fine and is rated up to 1.25 > Amps. (and delivers!) > The whole Nixie clocks draws 725mA max, including an ESP8266 acting as an > GPS emulator. (gets the time and date from NTP and outputs an GPS NMEA > sentence the Spectrum clock syncs to) > > I changed the anode resistors from 10k to 8k2. > As expected, the digits are brighter now. > > Hope, this helps. > I don't wont to give it up. It's just too beautiful and nostalgic, this > pretty glowing clock. :) > > > -- 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 post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/5d074377-04d1-427b-82c5-2a6a3432fb88%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
