Hmm... anodes and cathodes both show perfect square waves, with the slightest of roll-off towards the bottom (probably due to my ghetto- rigged "probe"). Weird.
On Feb 15, 1:27 pm, will <[email protected]> wrote: > OK, thanks. BTW I bought an old heathkit oscilloscope last night (for > $35. Thanks, craigslist!), so I'll try to get a voltage divider set up > today (It will be a while before the attenuator probe arrives) and I > should be able to better troubleshoot to see if it's a problem caused > by leakage. > > On Feb 15, 12:02 pm, threeneurons <[email protected]> wrote: > > > > > > > > >http://snipurl.com/10zg1u > > > Here's a video of the above clock running: > > >http://www.dailymotion.com/video/xbqv51_nixie-clock-3_tech > > > The flicker you see is the beat frequency between the camera's frame > > rate and the multiplexing rate of my clock. In real life, no flicker. > > The clock also has 'cathode poisoning prevention' scheme, which > > briefly flips each tube to a different digit. I don't know if this is > > really needed, since those tubes are never going to be flipped around > > or used for anything else. Its been running since 2004. The IN-14s > > still look like new. The 6802 dekatron's glass is a bit mirrored, but > > not too badly. Only the NE-2 in the middle looks the worst for wear. > > Maybe I stuck a limiting resistor in there, that was a bit too small. > > I often switch the value of the part used, to something else, than > > whats listed in the schematic. > > > Do what I say, not what I do. -- 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.
