Hi everyone,
I need help with my newly built clock. The thing is, after I turn it on and the clock runs for like 5-10mins, some of the digits on tubes become partially lit like on the picture. Now, I noticed the power supply gets very hot after running for 5-10mins and I measured the voltage on +HV (+185V) pin of the power supply while the clock is running. It seems like the voltage keeps dropping as the supply gets hotter (last time I measure it, it went down to 148V and these artifacts became showing on the tubes. The digit usually lights up normally at first, then after the cathode poisoning routing it becomes partially lit like on the first picture, then after the second cathode poisoning routine, it gets partially lit like on the second picture and so on, it shows on all of the tubes at some times. I'm using 27k anode resistors on IN-14 tubes and I guess the power supply is of the design from the picture I attached. Thanks in advance! <https://threeneurons.files.wordpress.com/2011/08/mc34063_m1bad_b.gif> Power supply design (I suppose) <https://lh3.googleusercontent.com/-tWX7o41vLGo/VgABPh-hTCI/AAAAAAAAAEg/rmwkNiodFxw/s1600/IMG_20150920_030556%255B1%255D.jpg> <https://lh3.googleusercontent.com/-4_1qUwrCX7k/VgABgjPr3OI/AAAAAAAAAEo/nE9UobiBRoY/s1600/IMG_20150920_030543%255B1%255D.jpg> -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/7e4a8d74-0446-4bf1-829e-787929329f51%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
