> I'm using 6 IN-14's and 6 russian 74141 equivalents. My PCB is already made > and when I want a tube to be blank I just throw it an invalid code. But now > I'm realizing that this it making them appear hazy instead of off, like all > of the digits are firing between one another. This goes away if I turn down > my voltage but to make it stop, I have to turn down the voltage low enough so > that some of the numbers don't completely light up. Is there anything I can > do about this?
If your numbers don't completely light up, it's probably because you don't have enough current. At lower voltages, you may have to reduce your anode resistors to get complete digit coverage. Try paralleling a high value resistor (maybe 10 times the value of the existing resistor) with the anode resistor of a misbehaving digit and see if you get better coverage. Naturally, a meter and some math can help determine the correct resistor for the lower supply voltage. - 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.
