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Here is a teardown http://users.rcn.com/ted.johnson/sprj.htm From: NEONIXIE-L@... [mailto:NEONIXIE-L@...] On Behalf Of Mike Harpe Sent: Wednesday, July 14, 2010 9:02 AM To:

The answer to that? Why! A Tek 464 / 466 of course! I know Storage CRTs have pitfalls of their own, the least of them being that the tubes are made of an unobtanium isotope

I am interested in learning more about the so-called "projection" displays that were used in a lot of 1970s industrial rack-mount type clocks. Does anyone on here have a reference or source for them?

Beauty is in the eyes of the beholder. In the 70's when this tube was first used as a clock display only TTL logic chips were available and a 7 segment number display was the norm even for LEDs. I

I only have it on two pages - every page has Google Analytics, so the main info I get from that. The map is really just a bit of fun. Doesn't seem to bad on my PC (but I have an i5-750 cpu now) -

It may be smart-looking, but algorithmically its somewhat crude - the solver seems to use a tree-walk/brute force attack, which lacks subtlety... it shouldn't have to make guesses. Nick

Does anyone know where I can source these. They can drive six B7971 Nixies directly, 12 hour with lead zero blank, brightness control, date, enable Just add HV power supply at 170v and you are good to

If it solved it instantly, it wouldn't be fun to watch. I would be happy with one that just did random numbers. If someone asked, "What does it do?" You can honestly say, "To make people ask

I try to avoid for sale posts here, but I still have a couple extra of the PCBs for this http://minila.sourceforge.net/ that I need to unload. They are version 1.1 pcbs, professionally made double

It had to get done, so it gone done ! It is *very* smart.

page at http://www.desmith.net/NMdS/Electronics/TraceWidth.html for an example. You can drag & spin the globe, and click on it for more detail. Google Analytics give some of that info, but not in

Ain't no feeling like it ! Jon.

Don't waste your time. The B7971 is a 14 segment tube with a really unique look. When run from a 7 segment driver the result is *UUUGLY*.

I have both an analog scope (Tek 465) and a DSO (Bitscope) and they both have advantages and disadvantages. I like the "real" aspect of the analog scope. The CRT responds in real time to whatever is

SUCCESS!! I now have a spinning dekatron! As usual it was loose nut on the user end of the soldering iron. Many good debugging suggestion. !

Dear All, Is there by any change the possibility to get information on the IC, type MM5458. Long time ago stripped from a digital clock, but that's it. National Semiconductor logo. Further marking:

Neat. I visited your page once again and was able to turn the globe upside down. Now the world turns backwards and I'm afraid my simple gesture could cause worldwide mayhem and flooding! :O Marco

Yeh. Off topic and all that, but good fun (in a geeky way). You can get a free rotating globe hit map for your web site - see my page at http://www.desmith.net/NMdS/Electronics/TraceWidth.html for an

Does the buzzer make any noise when you turn it on? If it does, you can test each guide channel by setting the kit to a low speed (the buzzer will click in time to the guide pulses) and connecting an

I've tried 3 different OG-4 tubes so far. They light up two cathodes and never move. I've been trying to adjust the configuration jumper pins to get better connections. I think that's my problem but