Re: [neonixie-l] Re: ZM1022 clock

[robin bussell]

Very smart!


On 09/10/2019 20:15, newxito wrote:
Here is the clock in the case, 3D printed with an ENIG pcb as front 
panel. I was too lazy to make something else :-)


clock.jpg


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Re: [neonixie-l] Odd but cool display

[robin bussell]

On 10/06/2019 18:38, gregebert wrote:
I cant figure out why there is a duplicate column of LEDs on the far 
right side.


If you check out the datasheet second page you'll see it's a dot matrix, 
not seven seg.


Cheers,
  Robin.

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Re: [neonixie-l] Tube database?

[robin bussell]

On 26/04/2019 09:16, Nathan Diniz wrote:

We should have an animated B-7971 display showing the motto and some unique 
font that shows the logo. It might be a bit much, but it is an idea.

I can offer up the services of @NixieBot if anyone wants to make some 
animated GIF B7971 banners, it now has a secret HTTP interface, so you 
don't need to faff about with twitter, and you get higher quality 
results too :) I can also arrange for suitable lighting conditions when 
time comes for the final rendering.


Email me off list for the low down on using it, I don't really want to 
put the URL anywhere publicly searchable and risk what used to be called 
a slashdotting as the server is just a little old raspberry pi :)


Cheers,
 Robin.

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Re: [neonixie-l] All Tube Dekatron Spinner Problems

[robin bussell]

On 13/04/2019 18:46, Thomas Kummer wrote:

Hi, I’m trying to make Threeneurons all tube variable Dekatron spinner. I got 
everything I need aside from the INS-1, I tried to short the two wires that 
connected to it, but the Dekatron wouldn’t spin. Would this schematic work 
without it?  Or, do I have to have an INS-1, or some other neon lamp there. I’m 
trying to do this with a GS10D(Purple Dekatron) the last time I tested the tube 
(Plasma ball) it worked fine. However, I have noticed that the base is loose on 
it now. I tested the voltage at the Dekatron anode and cathode(s) and got 450v.

I'm no expert but I'm pretty sure that INS-1 is being used to form a 
relaxation oscillator so you won't get any movement without it.



Cheers,
 Robin.

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Re: [neonixie-l] Video Tipps for Nixie Clocks...

[robin bussell]

On 11/04/2017 18:16, SWISSNIXIE - Jonathan F. wrote:

Hi Folks


I have built my first complete nixie clock and mostly done the V1.0 Code
:) Since the features of a clock are hard to show in pictures or text, i
wanted to make a video of the clock.  My clock looks like this
http://swissnixie.com/projects/SUNIX-S/SUNIX_S_ARTICLE.jpg

Sadly i have more luck with making decent pictures of tubes than making
a video. Most of my videos came either too bright (nixie tubes where
very yellow to white in color) or too dark (tubes look fine, case and
background are very dark).

Does someone has usefull ideas, tipps,tricks about shooting videos of
nixie clocks? I'm having a CANON 5D that can shoot video.


Any help is welcome! :))



Maybe you need to look into HDR video?

This page:
https://photography.tutsplus.com/tutorials/what-is-hdr-video-3-ways-to-create-high-dynamic-range-video--cms-25884

Mentions some success with custom canon firmware from here:

http://www.magiclantern.fm/

And a tutorial here: 
http://cgi.tutsplus.com/tutorials/a-simple-way-to-shoot-hdr-video-footage-using-magic-lantern--ae-20993


However I'm just a google pilot as far as this is concerned so good luck!

Cheers,
 Robin.






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Re: [neonixie-l] Re: Constant current source design

[robin bussell]

For
example, http://tayloredge.com/storefront/1386_B7971SmartSocket/1386A.pdf

Segment 11 in the datasheet is defined for a max current of 5.5mA, but
the above schematic would produce (170V - 140V) / 24 kOhm = 1.25mA. This
seems rather low?


I use those boards in this: https://hackaday.io/project/9155-nixiebot 
and it seems plenty bright enough to my eyes. Occasionally when the sun 
is full on the tubes through the window the pictures it produces can be 
a bit less legible but that's likely the camera having to adjust the 
sensitivity down due to bright reflections on the tubes.


Cheers,
 Robin.



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Re: [neonixie-l] Radioactive Nixies - Study

[robin bussell]

On 14/03/2017 13:14, Dekatron42 wrote:

So how should I do to properly test all old instruments and tubes that I
buy to check that they are safe, free from harmful radiation, is there
any reliable equipment that don't cost an arm and a leg that I can use
at home?


If you have a place that can develop it then maybe photographic film?
Or this stuff: 
https://uk.impossible-project.com/collections/film-for-polaroid-600-cameras


Though as to the practical details of how to expose and for how long I 
have no idea!



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Re: [neonixie-l] Re: How ICs are made - the inside track...

[robin bussell]

Hence the messy appearance of the internal wiring on a cray 
supercomputer, lots of lines had to be kept the same length to keep the 
timeing right:


http://www.digibarn.com/collections/systems/crays/cray1/portrait/DSC08221.JPG

(sorry for transistorised OT :)  )

Cheers,
 Robin.


On 26/01/2017 20:45, chuck richards wrote:

Yep, there's that part of it to consider as a portion
of the total overall result.

But, check it out, do the math.  The speed of light
is roughly one nanosecond per foot.

Yes, yes, electricity "flows" through a wire some tiny bit
slower than that, but the above approximation gets it well
within decent enough accuracy to aid a person in "seeing" what
is happening.

One time at Verizon we had a timing issue due to combining both 50
foot and 100 foot clock cables to different processor complexes
in a GTD-5 electronic telephone exchange.  That clock runs at 12.352
mHz.

I pointed out that the clock pulses were arriving at the end of the
100 foot cable about 50 nS later than those pulses arriving at the
end of the 50 foot cable.  That indeed was the problem.

We swapped out the 50 footers and made them all 100 footers, and
that cleared the trouble.

Chuck



 Original Message 
From: webmas...@jb-electronics.de
To: neonixie-l@googlegroups.com
Subject: Re: [neonixie-l] Re: How ICs are made - the inside track...
Date: Thu, 26 Jan 2017 12:14:09 -0700


What I find particulary amusing is that the drift velocity of the
actual
electrons is of the order of a cm/s if I remember correctly. Jens

On 1/26/2017 11:07 AM, chuck richards wrote:

Yes, that is correct!  Because electricity travels
through a wire at the approximate speed of 1 nanosecond per foot!

Chuck

 Original Message 
From: cm...@zeusprune.ca
To: neonixie-l@googlegroups.com
Subject: Re: [neonixie-l] Re: How ICs are made - the inside

track...

Date: Wed, 25 Jan 2017 21:28:47 -0500


On 17-01-24 03:14 AM, Roddy Scott wrote:
Processor chips

may have gotten a little bit bigger but not by much but could you
imagine the size of a computer based on the ENIAC
 technology and the power
requirements? The original consumed 150KW and weighed about 30

tons, a

modern day version would need its own power station and would

take

up a

football stadium

Ah but you are forgetting as Admiral Hopper liked to point out,

the

size
of a nanosecond.  A football stadium sized computer could not get

out

of
it's own way.

--
Charles MacDonald Stittsville Ontario
cm...@zeusprune.ca  Just Beyond the Fringe
No Microsoft Products were used in sending this e-mail.

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Re: [neonixie-l] Small run fabrication

[robin bussell]

I've used frontpanelexpress before too, their engraving and ink fill 
service looks very nice and has a good timeless vintage feel. Costs more 
than silkscreen though.


I'm working on a lasercut perspex case using openscad as a cad system. 
Currently awaiting replies from a couple of laser cutting services 
regarding the suitability of the files I exported.
There is a handy openscad library for making tab and slot boxes and so 
on here: https://github.com/bmsleight/lasercut


Openscad is free but not to everyone's preference as you basically 
program the object you want in a declarative language, there's no 
placing objects with the mouse or anything. However it does mean that 
you can design to a specific dimension easily without any fiddling about 
with grid snap values etc. Also you can make your design parametric so 
you can resize it easily.


Cheers,
Robin.

On 11/01/2017 20:14, NeonJohn wrote:



On 01/11/2017 01:33 PM, Paul Andrews wrote:

Hi,

I'm trying to make a case for one of my clocks and started looking at
online fabrication services such as big blue saw. I am basically looking at
designing and fabricating one-offs of some simple acrylic pieces (with cut
outs/holes etc.). I was wondering if anyone can recommend a service that is
reasonable for one-off parts like this?


You might take a look at frontpanelexpress.com.  They supply a sorta-CAD
package that you have to submit your design to them with.  It prices out
the cost of the panel as you add things to it.  The software is so
limited, however, that I end up drawing the features in a real CAD
program, exporting the object to DXF and importing it into the Front
Panel program.

I just had a panel made for our new induction heater which fits in a
Pelican knockoff case.  The panel is 200 X 300mm.  IT has 2 large
rectangular cut-outs and a couple of small ones.  a couple dozen drilled
holes and several DXF objects.  Their CAD program calls out each item
and puts a price on it.  A drilled hole is 2.5 cents, for example.

This panel is 2.5mm aluminum, anodized red and the legends and logos are
silkscreened white.  Cost was $189 single piece.  Drops rapidly with
quantity.  Quantity 5 is about $150.

We're shopping the piece around to Chinese manufacturers for volume
production but I can live with their price until sales justify a large run.



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Re: [neonixie-l] The Bombe Clock

[robin bussell]

That's beautiful! I love the "Cherenkoiv radiation in water" blue shade 
of the LEDs too.


What's the behavior of the drums? Do they permute properly?

Cheers,
Robin.

On 09/11/2016 15:49, Paul Parry wrote:

Hi All,

I thought I would just share my latest clock - the 'Bombe' made as a
tribute to Alan Turing and the work carried out at Bletchley park during
WWII. Has the lovely Dalibor tubes on there, and mechanically 1:1
accurate from the original Bombe. The Welchman Trust, who re-built the
Bombe at Bletchley were kind enough to loan me a set of drawings. The
drums are powered by brushless motors, and it is silent in operation (
unlike the actual Bombe! )
Would like to thank John S. for laying out one of the PCB's and also
Dalibor for making the tubes to go on it.




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Re: [neonixie-l] Is there somewhere I can get a HVPS like the 1364 at taylor electronics?

[robin bussell]

On 11/06/2016 15:54, John Grable wrote:


I'm working on a design for a divergence meter and the pcb was made for
the 1364 HVPS-H. I purchased the module from the taylor edge site but I
noticed the site hadn't been updated since 2012 so I'm not sure if my
order will be fulfilled. Any help would be much appreciated.

I bought some about six months back with no problem. As far as I know 
he's still trading. Pretty sure he looks in on this list from time to time.


If you get really stuck I have a couple spare (used but ok) but I'm in 
the UK.


Cheers,
 Robin.





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Re: [neonixie-l] Bad Dog Design

[robin bussell]

On 04/05/2016 21:28, 'Grahame' via neonixie-l wrote:


I hope the link opens for you, the beeb links can be a bit funny if
you're not in the UK.

http://www.bbc.co.uk/programmes/p03rjxsm

About 9 minutes in.



Nice! Good workshop you have there :)
I had to wince a bit when she was waving that Dalibor tube around though!

Cheers,
 Robin.


Grahame

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Re: [neonixie-l] Re: PIxie tube 3D socket

[robin bussell]

On 27/04/2016 17:51, gregebert wrote:

I use openSCAD, and create a mathematical model using cylinders. Since
tube sockets use symmetrical placement, it's easy to create a loop with
X & Y offsets. I also do the replicating (so I can print multiple
sockets at the same time) within the code. It's just simple math +
looping, but it does consume a lot of CPU time. Took ~25 minutes to
render 25 sockets.



Which slicer are you using with your printer? I ask as most will be able 
to do multiple copies of an object for you at slicing time. In Slic3r, 
for example, you use the "plater" to arrange multiples on the bed. That 
way you cut down openscad render time and can experiment with how many 
copies you can print at a time without a re-render.


Cheers,
  Robin.




After rendering, I export into .stl format.

For printing, I use Cura to import the .stl file and export as gcode. My
printer supposedly works best when printing a gcode file from a microSD
card, rather than the USB port.

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Re: [neonixie-l] Looky what I found !

[robin bussell]

On 01/04/2016 18:06, 'threeneurons' via neonixie-l wrote:

Re: [neonixie-l] Re: Electroluminescent displays (I-195)

[robin bussell]

On 29/03/2016 18:26, gregebert wrote:


I'd be interested in teaming-up with someone who has a 3D printer to
make 'fake' displays with green neon bulbs to emulate this particular
E-L display. They would have very long lifetimes and have a similar
color, not to mention, the large size.

I have a 3D printer that's currently loaded with a nice transparent PETG 
filament... The printer actually behaves itself most of the time too, 
nowadays :) If I were to use ABS then a bit of acetone would frost the 
plastic nicely I daresay.


What had you in mind?

Cheers,
 Robin.











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[neonixie-l] Nixies trending briefly on Twitter

[robin bussell]

Hi Folks,
this weekend my B7971 driven Twitter NixieBot got noticed by a 
subtribe of Twitter Youth and got a bit of a hammering :)
Over 2000 images or movies of text on the tubes got sent out and some 
garnered near on 200k views!
Some of it isn't for the faint hearted but go take a trawl through the 
mind dump of the internet (Furry division by the look of quite a lot of 
the messages )


Just scroll down (and down, and down...) on this page:
https://twitter.com/NixieBot

Code underwent some rapid revision to deal with the load without 
triggering Twitter's spamcops, made it through though :)


So thats a whole lot of people getting turned on the the ionic orange 
glow :D



Cheers,
   Robin.

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Re: [neonixie-l] Craigslist, gotta love it! 8 B7971s

[robin bussell]

On 02/03/2016 08:31, Tim Laing wrote:

I had a pure luck moment on Craigslist,
Great story! My best buy for B7971 was finding two of them on ebay as 
"british union flag pattern nixies", I ended up winning for £80 which is 
about $50 each I suppose.


Cheers,
Robin.


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Re: [neonixie-l] Re: High current 1.5A x150V power supply design for 100 IN9s

[robin bussell]

On 10/02/2016 05:24, JohnK wrote:

So, off-the-shelf mains inverter PLUS simple power supply circuit from
the mains volts, OR add a transformer and rectifier/filter. ??
If safety is an issue, a zillion small powersupplies ?
John K


If you want to go the many small supplies route then I did a little PCB 
for tayloredge 1363 PSUs (45mA @ 170v), as seen here:

http://dirtypcbs.com/view.php?share=14240=03a603186ce693a85368e67043d333fd

I have plenty spare as I got a batch made and only used two, I can send 
you six (capacity of 36 1363 PSUs in total ) and you'll be able to mount 
more than enough 1363 to fulfill your needs (I make it 34 at 45mA each), 
won't be the highest density I'll admit but maybe the thing you're 
making will benefit from PSUs distributed throughout its structure?


Cheers,
Robin.



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Re: [neonixie-l] make a clock go to jail

[robin bussell]

No other possible explanation other than that this is a very devious 
plot to electrocute POTUS when he asks to see the 'cool clock' working.




:)

(only half kidding, that mains cable looks well dodgy, not that I did 
much better when young of course!)


On 17/09/2015 20:53, 'westdave' via neonixie-l wrote:

wait a gosh darn minute,look at that photo i sent of the "bomb clock"
#1)it is a plug in 115vac with a 9volt battery back up
  #2)there are no batterys in the case so he had to open it to plug it
in (no big battery pack no big boom)
#3)it is a factory board in fact two of them( one the clock board and
the second is the switch board)
  and no one uses wire like that for interconecting boards and the led
display but the factory
#4)once again you would have to open the case to set it
conclution(he built nothing) ,he took a factory clock( sunbeam,ge
emerson?) and put it in a cool case ,moved the led display to the front
and did not even move the set switches
or drill a hole for the power cord , and now he is going to meet the
president of the united states (WTF)

where you will be flown by air force one from irving texas ,rushed from
the airport to the white house in washington D.C.and maybe then we will
take off the hand cuffs!


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Re: [neonixie-l] Re: TaylorEdge 1363 minimum proximity

[robin bussell]

On 25/08/2015 23:07, taylorjpt wrote:

No closer than about 0.100 from the top of a transformer to the nearest
component on the adjacent board.

jt



Thanks!  That's closer than I expected.

One minor thing, while I have your attention, the B7971 smart socket 
tester routine in your TES calculators utility doesn't seem to send 
any underline codes when instructed to. It's fine on everything else though.


Cheers,
 Robin.



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[neonixie-l] TaylorEdge 1363 minimum proximity

[robin bussell]

I have a few TaylorEdge 1363 vertical HV PSUs that I intend to use on 
one project. Under transformer proximity cautions the datasheet talks 
of avoiding putting conductive plates too close to the transformer, is 
there a similar limitation to how closely you could mount one PSU to 
another if they were lined up parallel like this:  with the 
transformers all facing the same way?



Cheers,
 Robin.

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Re: [neonixie-l] FunKy Kopper Klock Project

[robin bussell]

Really nice! Bet you had fun threading wires through those tubes and 
getting the order of assembly right :)


Cheers,
 Robin.


On 09/06/2015 16:54, mike_mn wrote:

I was introduced to Nixie Tubes 3 months ago when a friend posted a pic
of his Nixie Clock project on facebook.  As soon as I saw it I knew I
had to make one.  After 3 months of research, design, waiting for parts,
building, troubleshooting, waiting for parts and final assembly...here
it is.  It uses a PV FunKlock bottom board and a Scosche car USB charger
to allow iPad and iPhone charging.  The build process was a labor of
love, I hope you like it.



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Re: [neonixie-l] Another nixie watch comes to life

[robin bussell]

That's excellent! Definately an antidote to the iWatch :)
Does it have a user interface? How do you activate the display?
cheers,
Robin.

On 28/05/2015 06:26, gregebert wrote:

https://lh3.googleusercontent.com/-9IM-biyOxos/VWajNb6RkuI/AB4/vrZTqsArFzQ/s1600/DSCN5264.JPG

After 2 years of work, I finally finished my first (and only) nixie
watch... OK, so it's panaplex watchwhatever.


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Re: [neonixie-l] Re: FLW Clocks

[robin bussell]

On 15/04/2015 11:55, Tom Harris wrote:

To answer my own question Evil Mad Science Labs have a five letter
clock, but it only displays random words, not walking the tree of word
associations like a real FLW clock.




Hi Tom,
 I'm soon going to be embarking on making my own FLW where F=either 
Four or Five as I've got 5 B7971 and some smart socket boards. I've yet 
to decide what to use to actually drive the smart sockets and have taken 
onboard the need for data space. So I've a fair bit of soldering to look 
forward to this weekend to get the smartsockets populated and then I'll 
have to think about how to generate the words.


Can you tell me more about Walking the tree of word association sounds 
interesting ... does each word have stored with it the most likely next 
words according to a literature analysis or something?


Cheers,
 Robin.

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Re: [neonixie-l] Re: KLOK K7 broken from corrosive rot

[robin bussell]

On 16/12/2014 15:33, gregebert wrote:

I wonder if corrosive solder-flux was used. Did you see any telltale
residue with a greenish tint ?

Was the damage confined to areas around electrolytic caps ? They do
contain corrosive electrolyte and can fail over time.

Also any Nicad backup battery can leak nasty copper eating stuff over 
time too, I had to rescue a nice 80's synth from that once.


Cheers,
 Robin.



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[neonixie-l] everything that's wrong about instructables summed up in one handy article

[robin bussell]

I tut and sigh at some of the lax safety practices on Instructables 
electrical projects sometimes, even leave some helpful comments 
occasionally, but this one takes the proverbial! For your amazement and 
enjoyment (nothing to do with Neon but high voltages are involved) :


“You are taking a risk just having this thing near you because it is a 
death trap that you voluntarily attach to your hand, complete with 
amateur electrical wiring and warranty-voiding alterations. But who 
cares because it is super cool.”


http://www.instructables.com/id/Taser-Glove-Legit-Version/?ALLSTEPS

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Re: [neonixie-l] Re: Found a drawerful of 7441s!

[robin bussell]

On 03/10/2013 11:00, MrNixie (UK) wrote:

Yeah, be careful with those ones, David. They look like the lower
voltage types.


To be fair, though, they look like they can take pretty high current.

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