Hello, I have been thinking about having a stab at a nixie calculator
myself! My stumbling block was the keys (specifically, the key caps). What
is your source for these?
On Monday, 3 October 2022 at 08:58:58 UTC+1 newxito wrote:
> No worries, this is a strictly limited edition, this thing is
Rumours of Mr Wilkins' demise are, I am pleased to report, somewhat
premature!
Alive and well, and reporting in. Having some short term problems with my
email address laurence.wilk...@dsl.pipex.com (ever since Pipex sold out to
TalkTalk - downhill all the way :( )
Laurence
On Saturday, 26
It certainly is! :)
Laurence
Creator, Designer, Builder and Seller of around 250 CYCLOXes, worldwide.
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The only thing you can safely assume with cheap goods from China, is that
the seller is interested in your dollar, not your life.
A not-foolproof test is simply to feel the weight of a charger body in your
hand, when compared to a known, good (original equipment) specimin. The
fake will often
Unless you've not turned the TV on for the last six months, you'll know
that the Ukraine is in a state of some confusion, right now. The country is
very split about its own future. This is MIGHT have an impact, somehere, on
the chain of money/goods flowing from some parts of that country, to
Well, Petro, I am truly glad to hear that! I really hope that things work
out for the country
On Tuesday, 25 February 2014 15:16:45 UTC, Paul Parry wrote:
Hi all,
As someone quite new to Nixies, where would you recommend the best place
to get some IN-18 tubes from? Direct from somewhere
Bill, not unlike this one here, then! :) (my own design, of some five
years back)
http://www.youtube.com/watch?v=WgFVbnZrwYg
I used a lookup table which the software consults at regular time
intervals, once per display multiplex cycle, which was about every 6mS from
memory. The table had
Yeah, be careful with those ones, David. They look like the lower voltage
types.
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Lend me your bargepole - I wouldn't touch this deal with my own! This
doesn't stack up. You are only going to need one piece of don't-know-how,
and you would be completely stumped, I reckon. Of course, this item has
appeared on eBay before (was it with the same seller?), and it didn't sell
Hello Zitt, first of all, this sounds like an interesting and worthwhile
application for nixie tubes! You are to be congratulated on that. I am not
saying your design wont work, but you've asked for comments, so here are
mine...
I do feel that you may have over complicated the LED drivers a
BARBEQUE?? That came out of my fingers as Because...
On Tuesday, 27 November 2012 19:30:50 UTC, MrNixie (UK) wrote:
Hmm, I think you need to give us a bit more info - your proposed circuit,
supply voltage, etc. The mosfet and inductor won't complain much at 100C,
but your LEDs might start
The artist is catherine.pal...@bt.com
drop her a line if you like!
Laurence
On Mar 5, 11:55 pm, coggs bob.coggesh...@gmail.com wrote:
Beautiful. Is there a direct face-on set of renderings ? Would love
to use these and link to her site.
On Mar 5, 4:11 pm, MrNixie (UK) laurence.wilk
Good evening all, a past customer of my nixie clocks has an active
interest in detailed computer image rendering of objects that take her
interest. Latest object to receive the treatment is the glorious IN18
nixie tube.
Just think - even when the last IN18 is gone, we'll still have
these...
Well, as I said earlier, two separate batches of these chips were each
remarkably close to one-another, and all a tad slow, as it happened.
Uncallibrated, my batches might loose 30-60 seconds per year, IMO. I
am sure the manufacturing process includes some sort of hardware/laser
trimming
Michel, no 100Hz output I am afraid, since the on board (embedded)
crystal is 32.768KHz and of course 100Hz is not a sub multiple of
this. 8.192KHz, 4.096KHz, 1.024KHz or 1Hz (which is what I use to
interrupt the processor, and collect the latest time).
The resolution of the on-chip ageing
Well, as a designer and manufacturer of nixie clocks which incorporate
the fine Dallas 3231 Extremely Accurate on board TXCO RTC, I never
have my own clocks running for more than a few weeks before I've
pulled them to tinker with either the software or hardware! Instead I
have to relay on reports
Brian, you might be tempted to run a couple of small NE2 colon bulbs
in series, but you will probably find that their combined strike
voltage is higher than your HT power supply - either straight away, or
after a few months of bedding in. They just stop working! So, run the
neons (each with their
You are making me blush :)
Running partial fail IN18's at up to 15 mA for several hours will
SOMETIMES resurrect or part restore them, but I have not yet found
this to be a long term solution. YMMV of course. At least, during this
process, you can read a book (possibly even get a TAN) from the
Here's an even more exciting way of (sometimes!) reinvigorating a
shorted tube. Chances are that a piece of debris or bent/moved wire
has bridged two of the Cathodes. You should be able to find which two,
by going around the base of the nixie tube, testing for any continuity
(may be a short, or a
Jeepers, Buddy! 475V at 50mA? Did you check your life insurance?
Not popular for supplies in the few-watts range, but if you need this
sort of power maybe a valve amp transformer is going to be your better
bet?
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No doubt these 555 power supplies can work, but the efficiency can be
poor, and there is no current overload protection. If you can live
with the extra wasted power (means a heat sink, for your numbers) and
can trust yourself never to short the power supply out, then these
circuits will deliver.
Hello,
That chip uses upside down (i.e negative 12V) supply, so you have to
keep your wits about you! I suggest that it is a non-starter for nixie
conventional tubes, as its output is designed for a seven segment
display. At a push, you might be able to design something to drive
seven segment
with bigger wattage?
Thanks
On Oct 9, 8:17 pm, MrNixie (UK) laurence.wilk...@dsl.pipex.com
wrote:
That little simple 555 circuit is fairly standard and basic, and
will work. It wont give top performance, but who cares? Stick closely
to the advised components, particularity for the main
or later you will do this! Alas, I know this... :(
Laurence (AKA MrNixie, UK)
On Oct 9, 3:08 am, John Rehwinkel jreh...@mac.com wrote:
I've just got my IN-14 tubes and started experimenting on my first
nixie project - the clock, of course! For now I am using a disposable
camera as my power
,
and for that kind of money I can make 5 of
thesehttp://www.ledsales.com.au/kits/nixie_supply.pdf,and still have a lot
of spare parts!
Does anyone have any experience with these? Are they alright?
Thanks again!
On Oct 9, 6:25 pm, quot;MrNixie (UK)quot;
lt;laurence.wilk...@dsl.pipex.comgt;
wrote:
gt
Thanks to everyone for their replies. Speaking as someone who DOES
know a thing or two about driving multiplexed nixie and VFD displays
(several hundred such clocks sold), I can now confirm that, if these
items are not exactly duds, they are NOT capable of being driven in
a 7x9 addressable display
would make a really cool word clock...shame
to hear that they might be defective...can you return them (I know it's a
hassle..).
Nick
On Mon, Jul 18, 2011 at 12:44 PM, MrNixie (UK)
laurence.wilk...@dsl.pipex.com wrote:
Hmm - I might have just made an expensive mistake (or just
Hello,
what about this from the UK?
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItemitem=150464234759
Or even this one from China. Half the price, twice the risk! Take your
pick (PIC?)
See how active this thread is, and how many options you have! My two
cents (sorry - pence)
Longer term (days, weeks), a mains referenced clock will be your best
bet - your utility suppliers see to that in the longer term, for the
benefit of the many MILLIONS of legacy mechancial devices that
CORRECTION! TXCO stands for Temperature COMPENSATED Crystal Oscillator
- NOT Temperature CONTROLLED one. The chip uses no power to control
the temperature, it merely compensates the crystal capacitors to ALLOW
for it. Must read own notes before hitting send - sorry.
On Jun 2, 10:01 am, MrNixie
Robert, I forecast a lively discussion, here! Many people will have
their own views. David Forbes' comment about life expectancy being a
function of the CUBE of the current is new to me, but I have no reason
to doubt it.
I get the feel that driving the tube 1:6 is just too much, but that
1:3 or
I spoke to a technical guy at Supertex in the UK a few months back. He
said that they were working on a 5V version, though I haven't seen or
heard any further. There are other reports that these devices will
actually run fine from 5V, rather than 12V, logic levels, though I
haven't tried this
Just one other thing - if anyone DOES try running these current
generation Supertex chips at 5V rather than 12V, it is very likely
that they will only do so at a somewhat lower clock speed. Don't
expect to pump 8MHz into them at these low voltages!
LW
On May 29, 10:13 pm, kosbo.com
circuit, I
saved the IRF740 in case I needed to switch a bigger load.
On Feb 6, 5:40 am, MrNixie (UK) laurence.wilk...@dsl.pipex.com
wrote:
Will, This is the point (in case you hadn't noticed!) when a 'scope
comes in real handy! You really want to pursue that - I use mine a lot
Will, This is the point (in case you hadn't noticed!) when a 'scope
comes in real handy! You really want to pursue that - I use mine a lot
for fault finding my designs! It will pay for itself in your time,
Teach you loads and reduce frustrations.
I think your issue is not an AC (i.e. transistors
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