Thanks John, I guess there is not much difference in driving these than in driving the EZ10A/B then.
Do you know of any original schematic diagram where they are used? I've only seen the datasheet. /Martin On 8 Maj, 22:32, John Rehwinkel <[email protected]> wrote: > > I recently aquired a few Western Electric 6167 dekatrons. I have not > > been able to find a schematic drawing for these nor any equipment > > where they have been used. > > > Does anyone know of any schematic drawings where it is shown how these > > dekatrons should be hooked up. I have checked the usual websites but > > only found datasheets, photos or videos of them. > > These are unidirectional, single pulse dekatrons. This makes them a little > easier to drive > than some other dekatrons. To just get one pulsing around is easy enough. > Hook all > the cathodes together (except for the "normal cathode"), and connect the > guides together > (pins 11 and 14). Hook the anode to a few hundred volts via an appropriate > current > limiting resistor. You can ignore the auxiliary anode. To figure your > current limiting > resistor, divide the desired current by the difference between your supply > voltage and > the maintaining voltage. The minimum supply voltage is 300V, and the > maintaining > voltage is 110V. The current the tube wants is 100 to 3000 microamps. If > you have > a 450 volt supply, you could use a 1 megohm current limiting resistor to > provide > (450 - 110) / 1,000,000 = .00034 amps, or 340 microamps. That would be a > reasonable > starting value. > > Then alternately ground the cathodes and the guides, with some overlap. You > can do > this manually with a pair of switches, or electronically with transistors. > The glow should > march around the dekatron, taking a step every time you switch between the > cathodes > and the guides. > > If you want to do counting and/or calculations, then it gets a little more > intricate, and you > use the "normal cathode" and auxiliary anode to make sure the glow starts > where you > want it to, and route one or more cathodes to separate circuits to detect > when the glow > comes to them. > > But the above should at least get you started. > > - John -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
