Oh and I accidentaly reported your post as spam. Sorry about that! Dunno how that effects anything though..
On Mar 16, 9:13 am, Dekatron42 <martin.forsb...@gmail.com> wrote: > Many manufacturers write that you will have to contact them for the > special curves you need when you are going to multiplex their Nixies > since they do not usually print that information in the databooks. > > These sheets show you that the Nixie will have an increased turn-on > voltage corresponding to the increased current when run in switched > mode. This is the same as when a neon voltage stabilizer tube is used, > the voltage increases somewhat when the current increases, you can > check the OB2 voltage regulator tube for instance. > > The curves for most Nixies when used in multiplexed mode are not > linear so if you can't find those curves you'll have to make the > measurements yourself and take into account the spread between > different Nixies to draw the curve. Some of these special curves have > a voltage span of approximately 10-30V for a certain current through > the Nixie, so there is an upper and a lower limit for the turn-on > voltage corresponding to the current used. > > This book:http://www.oldtimeradio.de/BU7908.php"Electronica 171 - > Elektronische Anzeigebauelemente" by Winfired Müller contains a few of > these curves for the ZM-series of Nixies. > > /Martin > > On 16 mar, 00:55, Cobra007 <mic...@xiac.com> wrote: > > > > > > > > > Yes, I think I mentioned "slightly" increase rather than a mayor > > increase. > > > I have measure this on another nixie tube and came to the following > > voltages: > > 0.5mA : 120V > > 1.0mA : 125V > > 1.5mA: 130V > > 2.0mA: 133V > > 3.0mA: 140V > > 4.5mA: 150V > > > His tube current will increase from 2mA to about 7.5mA, so according > > to the above measurements, the increase in tube voltage will be > > playing a role. > > > Michel > > > On Mar 16, 10:06 am, Charles MacDonald <cm...@zeusprune.ca> wrote: > > > > On 12-03-15 05:46 AM, Cobra007 wrote: > > > > > So it looks like your resistor is correct. The only thing is that the > > > > voltage across the tube will slightly increase due to the higher > > > > current, so it's not 100% correct but pretty much. > > > > Since we are talking a Neon device, the voltage across the tube will try > > > to stay the same, with the current adjusting if needed. That is why > > > Neon bulbs were used as Voltage reference devices in days of Old. > > > > -- > > > Charles MacDonald Stittsville Ontario > > > cm...@zeusprune.ca Just Beyond the > > > Fringehttp://users.trytel.com/~cmacd/tubes.html > > > No Microsoft Products were used in sending this e-mail. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to neonixie-l@googlegroups.com. To unsubscribe from this group, send email to neonixie-l+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
