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On Sun, Aug 22, 2010 at 9:47 AM, mimewar <mimewar@...> wrote:

I added a LED from pin 4 to ground to test the circuit. 8 and 9 now work,
so i suspect the Picaxe I am using is supplying an overvoltage, about 2.3V
too much. Anyone care to confirm?

Please post your schematic.

-Adam

Maybe I am referring to one of the Forbes ! The EPUT was an old tube device by Beckman I think. Was a big rack-mount thing with neon lamps behind a mask, or later interfaced this to nixies.

--- In NEONIXIE-L@..., "Brian Stuckey" <brian@...> wrote:

I can't even view that page. First it gives me a popup asking me permission to download temporary fonts, then it gives me a script popup ordering me to "Get a new browser!", then it redirects me to Google Chrome's site -- which doesn't offer a version compatible with my OS.

All of that is regardless of which buttons I click in the popup windows, including "Cancel" on the "Get a new browser!" popup. How rude.

I remember you saying that you had problems with that once before. What browser & OS are you using? I'm trying to hunt down these bugs and I can't seem to reproduce that one :-/

I ran it through browsershots.org but the only error I see when I do that is one asking if the user wants to accept a cookie from my domain.

Take a look at this one, it's very similar to what I see:


A.J.

--- In NEONIXIE-L@..., "Marcin" <mr.adamski@...> wrote:

--- In NEONIXIE-L@..., "A.J." <a.j.franzman@> wrote:

I can't even view that page. First it gives me a popup asking me
permission to download temporary fonts, then it gives me a script
popup ordering me to "Get a new browser!", then it redirects me to
Google Chrome's site -- which doesn't offer a version compatible
with my OS.

Are you using IE older than ver. 7 or an other browser pretending to
be IE? That page doesn't work with them. The prompt window indeed
redirects to chrome regardless of the button pressed. Bad
programming practice.
I am afraid that the only way to get it working is to get IE 7 or
newer, another browser (eg. firefox, opera, chrome, safari) or maybe
(but I would not expect success there) - disable javascript in your
browser, or make your browser to mimic IE 7+ or one of the other
browsers. Good luck.

OK, you caught me. I am running IE6, spoofing IE7 via the registry settings. I'm aware that some methods of browser version detection aren't fooled by this spoofing method, so apparently the site in question is using one of those other methods. IMO that doesn't excuse its way of handling the situation, but I guess since I'm far in the minority I don't have much to say about it.

A.J.

--- In NEONIXIE-L@..., Steven Arangolord <macguyver50@...> wrote:

--- On Sat, 8/21/10, A.J. <a.j.franzman@...> wrote:

I'm still waiting for a previous, similar project discussed here a
few times to come to fruition. Rather than using a frequency
counter, it would use one of the older digital event counters and
not require a frequency generator. (Can frequency counters count
individual pulses?)

Still have that tube EPUT meter ? or was it dissected for a clock already ?

Unless you're referring to the nixie display, I never had a tube-based counter. The unit, which I still have, is an H-P 5221B "Universal Counter" that can measure frequency or simply count pulses (I guess that's what you mean by EPUT). Internally, it's got a lot of transistors and ICs, not tubes.

As far as I can tell, the only modification it might need to work as a clock display, would be an external connection to RESET, to ensure that any counting errors are not cumulative beyond one day.

A.J.

Hi Shane,
I think that your problem is most likely one of two things:
1) Something is wrong with your output routine for pin 4. Different
microcontrollers will have different pin setups. Read through the manual
very carefully on the new microcontroller on the subjects of setting up pins
for output. Just because the same routine worked on pins 1-3 doesn't
necessarily mean it will work on pin 4, all I/O pins on a microcontroller
are not equal.
2) Possibly your 74141 has failed. They sometimes do that, although I don't
know I've ever heard of one failing like that one. Still, if you have a
spare to swap in, might be worth giving a try.

-Adam

I added a LED from pin 4 to ground to test the circuit. 8 and 9 now work, so i suspect the Picaxe I am using is supplying an overvoltage, about 2.3V too much. Anyone care to confirm?

Shane

I got at least two nixie tube counters from university lab clearouts, which seems to be able to do that..

Dan

Steve Rooke <sar10538@> wrote:
Now here's an idea. Take one nixie based frequency counter
and couple it with a programmable frequency generator ...
clock

I'm still waiting for a previous, similar project discussed
here ...(Can frequency counters count individual pulses?)

A.J.

Those types of counters do exist, and go way back to the nixie days. I got one. Its a CMC (not near it, so I don't have the model number), and its a 'universal' counter, that does frequency, period, and event. You want 'event', where it just accumulates pulses while the gate is open. The counter, I own, uses B5092 nixies, and is built up of descrete transistors to make the logic functions, and counters. A bunch of little PCBs (~2.5"x~2.5") and wiring harnesses up the ying-yang. Gotta fix it one of these days.

I can't even view that page. First it gives me a popup asking me permission to download temporary fonts, then it gives me a script popup ordering me to "Get a new browser!", then it redirects me to Google Chrome's site -- which doesn't offer a version compatible with my OS.

All of that is regardless of which buttons I click in the popup windows, including "Cancel" on the "Get a new browser!" popup. How rude.

Hello-
I remember you saying that you had problems with that once before. What browser & OS are you using? I'm trying to hunt down these bugs and I can't seem to reproduce that one :-/

I ran it through browsershots.org but the only error I see when I do that is one asking if the user wants to accept a cookie from my domain.

Brian

For me it's just the fun to use discrete components and to avoid software
(may be the difference between you and me ;-) ).
To me a ?P in a nixie or meter clock is the same as a quartz or DCF clocwork
in an atique pendulem clock. A ?P belongs to a LED or LCD display; it's a
matter of sense...
I aamn even trying to build a clock with relay's instead of semiconductors.
Further are cold cathode triggers and dekatrons a future option.

--- In NEONIXIE-L@..., "A.J." <a.j.franzman@...> wrote:

I can't even view that page. First it gives me a popup asking me permission to download temporary fonts, then it gives me a script popup ordering me to "Get a new browser!", then it redirects me to Google Chrome's site -- which doesn't offer a version compatible with my OS.

Are you using IE older than ver. 7 or an other browser pretending to be IE? That page doesn't work with them. The prompt window indeed redirects to chrome regardless of the button pressed. Bad programming practice.
I am afraid that the only way to get it working is to get IE 7 or newer, another browser (eg. firefox, opera, chrome, safari) or maybe (but I would not expect success there) - disable javascript in your browser, or make your browser to mimic IE 7+ or one of the other browsers. Good luck.

On 22 August 2010 17:51, A.J. <a.j.franzman@...> wrote:

--- In NEONIXIE-L@..., Steve Rooke <sar10538@...> wrote:

Now here's an idea. Take one nixie based frequency counter and couple it
with a programmable frequency generator. Drive the generator by a micro
such that it generates frequencies in the correct sequence of steps to
show the time on the counter. If you used a 24 hour clock it would
take the highest frequency of 235.959MHz or 125.959MHz for a 12 hour clock.

<snip>

I'm still waiting for a previous, similar project discussed here a few
times to come to fruition. Rather than using a frequency counter, it would
use one of the older digital event counters and not require a frequency
generator. (Can frequency counters count individual pulses?)

My NIXIE Ballentine 5700A does not have any functions other than counting
but some later counters have totalisation and period measurement.

Steve


--
Steve Rooke - ZL3TUV & G8KVD
The only reason for time is so that everything doesn't happen at once. -
Einstein


[Non-text portions of this message have been removed]

--- On Sat, 8/21/10, A.J. <a.j.franzman@...> wrote:

I'm still waiting for a previous, similar project discussed here a
few times to come to fruition. Rather than using a frequency
counter, it would use one of the older digital event counters and
not require a frequency generator. (Can frequency counters count
individual pulses?)

Still have that tube EPUT meter ? or was it dissected for a clock already ?


[Non-text portions of this message have been removed]

--- In NEONIXIE-L@..., "Brian Stuckey" <brian@...> wrote:

I'm riving away one (or both) of the above tubes. If you're interested, just enter here:

I can't even view that page. First it gives me a popup asking me permission to download temporary fonts, then it gives me a script popup ordering me to "Get a new browser!", then it redirects me to Google Chrome's site -- which doesn't offer a version compatible with my OS.

All of that is regardless of which buttons I click in the popup windows, including "Cancel" on the "Get a new browser!" popup. How rude.

A.J.

[edited by A.J. - please trim quoted material]
On Sat, Aug 21, 2010 at 2:35 PM, mimewar <mimewar@...> wrote:

I had a working one tube counter, a simple 0-9. I was using the Basic Stamp
board. I moved to a Picaxe 08M, and now, it won't count past 7. I goes
0,1,2,3,4,5,6,7, dark, dark, 0,1,2,3,4...

<snip>

Have you manually checked (by tying the pins to VCC and GND) that your 74141
will actually produce 8 and 9?

[Non-text portions of this message have been removed]

--- In NEONIXIE-L@..., Steve Rooke <sar10538@...> wrote:

Now here's an idea. Take one nixie based frequency counter and couple it
with a programmable frequency generator. Drive the generator by a micro such
that it generates frequencies in the correct sequence of steps to show the
time on the counter. If you used a 24 hour clock it would take the highest
frequency of 235.959MHz or 125.959MHz for a 12 hour clock.

<snip>

I'm still waiting for a previous, similar project discussed here a few times to come to fruition. Rather than using a frequency counter, it would use one of the older digital event counters and not require a frequency generator. (Can frequency counters count individual pulses?)

A.J.

I had a working one tube counter, a simple 0-9. I was using the Basic Stamp board. I moved to a Picaxe 08M, and now, it won't count past 7. I goes 0,1,2,3,4,5,6,7, dark, dark, 0,1,2,3,4...

Anyone have any experience with the 74141 TTL chips and microcontrollers? Did I leave something tiny, but important out? I have the four output pins of the 08M, going directly to the 1,8,2,4 inputs of the 74141 ( and yes I made sure about 12 times that the outs and ins all correspond.. No caps, no resistors except on the HV input on the tube..

I looked at it enough so I know that 8, and 9 are the only two digits that involve pin 4 (binary input 8) going high. I have tested this on three different microcontrollers, and still nothing. Anyone have any TTL experience that may have a suggestion?

Thanks
Shane

The kit site got a call-out in Nuts and Volts magazine in the TECHknowledgey column.

Does anyone have any experience creating or using an IN-12 in eaglecad? I found the russian-nixies.lbr which includes an IN-12 part and claims to be compatible with the SK-136 socket..I'm skeptical, though. Can anyone verify?
Also, is there a different or "better" way that anyone can suggest? I've seen people recommend mil-max pins for various parts (especially IN-8's), anyone done this with IN-12's (and hopefully have a library to share?). Thanks.

-Adam