Thanks you John, I just tested it and it works great. Just one thing; Is it normal behaviour that I've to turn on the digit and the decimal point at the same time if I want the decimal point to bright ?
When I try to turn on the decimal point when the digit is already on, sometime the dot turn on correctly (normal brigh)t, but most of the time, it doesn't turn on ( in that case, when I look very closely, I can see a small light in the tube, but not really visible) Best regards, Julien On 28 déc. 2011, at 23:23, John Rehwinkel wrote: >> I imagine the following solution (the dark black part of the schematic >> here : http://dl.dropbox.com/u/46332604/IMG_1045.JPG). >> I've to tell you that I didn't studied electronic and npn transistor >> is very obscure to me. > > That is basically the right idea, but the decimal point needs less current > than the digits, so a series resistor between the transistor and the decimal > point will probably be needed to balance the brightness. > > - 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. > -- 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.
