On 6 May 2012, at 17:08, Dieter Waechter wrote: > Well Bob, > the problem is, that the pinout is understood wrong in 99.9% for both, IN-18 > and IN-4. > All PCB designs for the IN-18 I have seen from other people are WRONG! > Example: > IN-18: > All tell, me included, that pin 4 is pointing to the front. > see my page here: > http://www.tube-tester.com/sites/nixie/data/in18.htm > I know: it is wrong! > I do tell that on my page as well to avoid "dumb" questions. > But what is right? > Which pin is in front? > The answer is easy: > NO pin is in front! > Right is, that pin 4 must be in one line with pin 11 and pin 1 must be in one > line with pin 14. > (same at the IN-4!) > See the picture here: > http://www.tube-tester.com/sites/nixie/nixie-clocks/IN-18-BD/pic/IN-18-BD-inside.jpg > Can you see it? > Pin 4 is not pointing to front – only nearly! > That's why in all IN-18 clock I have seen the digits (cathodes) stand > inclinded to the longitudinal axis of the clock. > Now immediately go to your IN-18 clock and check it! Do the cathodes stand > even? Then the designer did get it right! > ;-) > Dieter
Dieter, you never saw my IN-18 clock then, because I think I got it right and I made that clock years ago. http://www.clock-it.net/nixie_clocks/in-18_clock.html Regards, 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 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.
