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Nixie that has a regular "5"

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steve516

Mon Apr 25 2011, 10:28PM

Registered Member #3832 Joined: Thu Apr 14 2011, 11:57PM
Location: Downtown Chicago, IL
Posts: 37

The IN-8/ 14 (only difference is the 14 has wire leads while the 8 has pins) are standard size Russian Nixies with normal 5. there's always a ton of those on eBay as well.

EDIT oops! Didn't see OP wanted top view.

Definitely check here:

doctor electrons

Mon Apr 25 2011, 10:49PM

Registered Member #2390 Joined: Sat Sept 26 2009, 02:04PM
Location: Milwaukee Wisconsin
Posts: 381

That first link is getting bookmarked Steve! Thanks!!

magnet18

Mon Apr 25 2011, 10:59PM

Registered Member #3766 Joined: Sun Mar 20 2011, 05:39AM
Location:

Posts: 624

steve516 wrote ...

The IN-8/ 14 (only difference is the 14 has wire leads while the 8 has pins) are standard size Russian Nixies with normal 5. there's always a ton of those on eBay as well.

EDIT oops! Didn't see OP wanted top view.

Definitely check here:

FYI, the IN-14 DOES have the upside down 5, IDK about the IN-8

[EDIT]
Haha, looks like we've both spent some time looking at nixies, we linked to the same page :P

steve516

Tue Apr 26 2011, 12:58AM

Registered Member #3832 Joined: Thu Apr 14 2011, 11:57PM
Location: Downtown Chicago, IL
Posts: 37

magnet18 wrote ...

FYI, the IN-14 DOES have the upside down 5, IDK about the IN-8

[EDIT]
Haha, looks like we've both spent some time looking at nixies, we linked to the same page :P

Lol, I'm clearly off my game today, that post failed on all counts. I plan on one day building a Nixie clock but don't have the time or funds at the moment.

This, for instance, is my dream desk ornament:

magnet18

Tue Apr 26 2011, 02:32AM

Registered Member #3766 Joined: Sun Mar 20 2011, 05:39AM
Location:

Posts: 624

steve516 wrote ...

Lol, I'm clearly off my game today, that post failed on all counts. I plan on one day building a Nixie clock but don't have the time or funds at the moment.

This, for instance, is my dream desk ornament:

that's less of a desk ornament, more of a desk

you should look into using dekatrons to divide the mains signal, it looks purdy and It's simpler.

Adam Munich

Tue Apr 26 2011, 03:20AM

Registered Member #2893 Joined: Tue Jun 01 2010, 09:25PM
Location: Cali-forn. i. a.
Posts: 2242

Meh, I suppose I'll settle for the upsideown 2 then, seeing as all the normal 5 ones are very expensive.

Now, how to run a nixie off a 22V supply... hm, homemade transformer + mini zvs ought to do it, even if it is overkill it's still efficient.

magnet18

Tue Apr 26 2011, 03:52AM

Registered Member #3766 Joined: Sun Mar 20 2011, 05:39AM
Location:

Posts: 624

AC or DC?
because if you want someone else to blame when something goes wrong current limited nixie drive transformers can be had for like $15
(also useful if you're too lazy to build one, like me)

James

Tue Apr 26 2011, 06:47AM

Registered Member #3610 Joined: Thu Jan 13 2011, 03:29AM
Location: Seattle, WA
Posts: 506

It's pretty easy to make a proper supply for them, only takes a few mA, but you need it to be regulated at around 180VDC.

I've built them around the MAX771 IC, but there's a design here

Nicko

Tue Apr 26 2011, 09:02PM

Registered Member #1334 Joined: Tue Feb 19 2008, 04:37PM
Location: Nr. London, UK
Posts: 615

James wrote ...

It's pretty easy to make a proper supply for them, only takes a few mA, but you need it to be regulated at around 180VDC.

I've built them around the MAX771 IC, but there's a design here

Thank you for referencing my design! MAX1771 designs are quite esoteric - a simpler starter design based on a 555 may be ok for testing - the design below comes from Google group neonixie-l member threeneurons. Not hugely efficient, but good enough for most nixie purposes - also, its made from bits you may have just lying around - note the diode must have a very low MTTR, the FET should have a low Qg and be good for HV and at least an amp or so, the output caps must NOT be big - low ESR is the key here, so two small (e.g. 2u2 @ 200VDC) caps in parallel works well - if you use big caps, the SMPS will not regulate.

You can have a look at some of the options on Dieter's site at

- this is not exhaustive, but a good start. Other sites are also useful (like Ask Jan First

and JB Electronics

The truth is that the Russian tubes are generally far more readily available as they were still manufacturing them into the 1980s.

James

Tue Apr 26 2011, 10:04PM

Registered Member #3610 Joined: Thu Jan 13 2011, 03:29AM
Location: Seattle, WA
Posts: 506

I haven't used the MAX1771 yet, but I've built a number of nixie PSUs around the older MAX771 which is a very similar part.

Shipping a Nixie tube wouldn't cost much. I collected quite a few of them too back when prices were reasonable but they're packed up at the moment. Some day I need to build some more clocks or something.

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