>From a quick look at the specs, of both tube types, I think you're safe. If anything the nominal operating current on the IN-8 is higher (2.5mA vs 2.0mA), so a least you won't prematurely age them. One possible problem is that the anode current is too low, which may cause the digits to only partially light, over time. But before making the anode resistors smaller, test the IN-8 tubes on hand. Once you get them, if you don't already have them. Check a single cathode, with the supply you intend to use, with the anode resistor value used in the kit. When lit, measure the voltage drop across the resistor and divide it by that resistor value, to get the current. If its close to 2.5mA, then stick with it. If its more than 0.5mA off, then put in another value (up or down) to get you closer. In short, buy the kit, and maybe, you'll have to run down to Radioshack, for a more appropriate set of anode resistors. Even at Radioshack prices, its a fairly cheap risk.
Probably, a more important investment, is some insulating sleeving. I haven't checked the pinout differences, but if the front of the tubes, and pinouts, are wildly different, then the wires could short trying to route them to their proper pads. With the sleeving, this won't be a big problem. Leave the leads sufficiently long, as not to stress the nixie glass. And if you're cheap (ie me), you can use the insulation stripped from a roll of existing hook up wire. No need to get the expensive teflon stuff, unless you already have it on hand, or a surplus store nearby is selling it for dirt. In that case, buy them out, and sell it on eBay. > On Feb 13, 10:34 am, Allen Wisbey <[email protected]> wrote: > I found one of Moses' kits tucked away 6 digit Z57xM > kit<http://www.allspectrum.com/store/product_info.php?cPath=21&products_i...>. > I don't have the z573/4m tubes, but I do have some IN-8 tubes. > Judging from what I can see on the data sheets, other than the pin outs > being different I think I should be able to use the IN-8's without further > modification. > Would someone please verify that for me? > Thank you! > > 73 de Allen, W1SBY -- 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.
