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

[JohnK]

Yeah, it probably is wrong. That was why I said it WAS 50 years ago. Maybe I 
misremembered the figure too. They did describe the experiment that provided 
the figure but I have zero recollection of that for some reason.
Maybe I misremembered more too.  Interesting that the 3 inches per hour 
would be close to 2.7 inches per hour. I still have a lot of the old school 
books - I can picture the book involved as a softcover A4 on its edge 
variety. One that was written by a group of physics teachers specifically 
for the curriculum; very easy for there to be errors in it - they got Static 
and Dynamic tube/valve curves confused.


Point is though, 'electrons' travel slowly, the effect travels quickly. Yes?

jk

- Original Message - 
From: "jb-electronics" 

To: 
Sent: Friday, January 27, 2017 3:03 PM
Subject: Re: [neonixie-l] Re: How ICs are made - the inside track...


27ft/s seems high, see here: 
https://en.wikipedia.org/wiki/Drift_velocity#Numerical_example


Jens

On 1/26/2017 9:28 PM, JohnK wrote:
Many years ago [50] in school physics we were told 27 feet per second for 
'electrons' in wire and to treat "data/information" transfer like a long 
tube full of ping-pong balls where you push one in at this end and one 
falls out at the other.


John K

- Original Message - From: "jb-electronics" 


To: 
Sent: Friday, January 27, 2017 5:44 AM
Subject: Re: [neonixie-l] Re: How ICs are made - the inside track...


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

[jb-electronics]

27ft/s seems high, see here: 
https://en.wikipedia.org/wiki/Drift_velocity#Numerical_example


Jens

On 1/26/2017 9:28 PM, JohnK wrote:
Many years ago [50] in school physics we were told 27 feet per second 
for 'electrons' in wire and to treat "data/information" transfer like 
a long tube full of ping-pong balls where you push one in at this end 
and one falls out at the other.


John K

- Original Message - From: "jb-electronics" 


To: 
Sent: Friday, January 27, 2017 5:44 AM
Subject: Re: [neonixie-l] Re: How ICs are made - the inside track...


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

[JohnK]

Many years ago [50] in school physics we were told 27 feet per second for 
'electrons' in wire and to treat "data/information" transfer like a long 
tube full of ping-pong balls where you push one in at this end and one falls 
out at the other.


John K

- Original Message - 
From: "jb-electronics" 

To: 
Sent: Friday, January 27, 2017 5:44 AM
Subject: Re: [neonixie-l] Re: How ICs are made - the inside track...


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] tubes at electols

[Greg P]

Hi Chuck,

Out of curiosity, what Nixie's were you able to purchase from Richardson 
when they liquidated?  Were the prices good?



On Thursday, January 26, 2017 at 1:04:25 PM UTC-5, Chuck wrote:
>
> I had a look at Electol's available nixies. 
> They have quite a few.  Maybe this is another opportunity 
> for a bunch of us to get together and do a group purchase 
> such as was done several years ago when Richardson Electronics 
> liquidated their nixies. 
>
> Chuck 
> > 
> > 
> > Original Message  
> >From: jfre...@gmail.com  
> >To: neoni...@googlegroups.com  
> >Subject: RE: [neonixie-l] tubes at electols 
> >Date: Thu, 26 Jan 2017 02:58:00 -0800 (PST) 
> > 
> >>Today i got an email from a company we order from at work. 
> >> 
> >>Its called Electols, and they will clear out their vacuum tube 
> >section. I 
> >>checked for nixies, and they have some. In the mail it also said 
> >that they 
> >>will accept offers for large quanities (. 
> >>Maybe someone is interested in it 
> >> 
> >>http://electols.com/shopping/en/4-electron-tubes 
> >> 
> >>And for nixies: 
> >> 
> >>http://electols.com/shopping/en/search?orderby=position=des 
> >c_query=nixie 
> >> 
> >> 
> >>They also have magic eyes, dekatatrons etc, but you have to search 
> >by type. 
> >> 
> >> 
> >> 
> >>-- 
> >>You received this message because you are subscribed to the Google 
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> >https://groups.google.com/d/msgid/neonixie-l/936a8993-80ae-4648-bec0- 
> >ef6e1993edb6%40googlegroups.com. 
> >>For more options, visit https://groups.google.com/d/optout. 
> >> 
>
>
>
> $4.95/mo. National Dialup, Anti-Spam, Anti-Virus, 5mb personal web space. 
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Re: [neonixie-l] IN-2 Lifespan?

[Ben W]

Well that is reassuring, thank you. I'll give them a go.

On Wednesday, January 25, 2017 at 9:16:57 PM UTC-8, Pramanicin wrote:
>
> They're not *that* badI've run a set for a couple of years and have 
> had 1 tube go bad on me in one of Juergen's clocks. Not as robust as other 
> nixies out there (including other soviet nixies like the IN14 which seem to 
> last a long time!) but you should get a reasonable lifespan out of them. 
> They're still cheap, so buy plenty of spares! :)
>
> Nick
>
> On Wed, Jan 25, 2017 at 7:26 PM, Ben W  
> wrote:
>
>> Alright, give it to me straight...I just bought 6 of these and want to 
>> know if they're worth even bothering with.
>>
>> I know the IN-4's are known to fizzle out after a few months of constant 
>> use. Peter of PV Electronics has said as much, from his own experience. Do 
>> we know this to be true about the IN-2's as well? It's a lack of mercury 
>> right? Does anyone have any firsthand experience with them?
>>
>> -- 
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>

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

[Instrument Resources of America]

P.S. getting old is the pits!!!


On 1/26/2017 1:25 PM, Instrument Resources of America wrote:
I had a very similar issue here in my lab recently while checking out 
an HP X-Y display. I was feeding both x and y the same signal in order 
to check out the phase spec between both ch. at 20 MHZ. Unfortunately 
idiot here had used two different length cables to feed x and Y, and 
then sat there trying to figure out why it would NOT meet spec. It 
finally dawned on me. Two equal length cables solved the issue.  Ira.



On 1/26/2017 12:45 PM, 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] Re: How ICs are made - the inside track...

[Instrument Resources of America]

I had a very similar issue here in my lab recently while checking out an 
HP X-Y display. I was feeding both x and y the same signal in order to 
check out the phase spec between both ch. at 20 MHZ. Unfortunately idiot 
here had used two different length cables to feed x and Y, and then sat 
there trying to figure out why it would NOT meet spec. It finally dawned 
on me. Two equal length cables solved the issue.  Ira.



On 1/26/2017 12:45 PM, 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] Re: How ICs are made - the inside track...

[chuck richards]

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.
>>>
>>> -- 
>>> You received this message because you are subscribed to the Google
>>> Groups "neonixie-l" group.
>>> To unsubscribe from this group and stop receiving emails from it,
>>> send an email to neonixie-l+unsubscr...@googlegroups.com.
>>> To post to this group, send an email to
>neonixie-l@googlegroups.com.
>>> To view this discussion on the web, visit
>>>
>https://groups.google.com/d/msgid/neonixie-l/4edd2832-7130-f917-1bf8-
>>> 26e6311f3b94%40zeusprune.ca.
>>> For more options, visit https://groups.google.com/d/optout.
>>
>>
>> $4.95/mo. National Dialup, Anti-Spam, Anti-Virus, 5mb personal web
>space. 5x faster dialup for only $9.95/mo. No contracts, No fees, No
>Kidding! See http://www.All2Easy.net for more details!
>>
>
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Re: [neonixie-l] Re: How ICs are made - the inside track...

[jb-electronics]

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] IN-2 Lifespan?

['kitehman' via neonixie-l]

whats the year code on yours?

On Wednesday, January 25, 2017 at 9:51:07 PM UTC-9, Trumpeter wrote:
>
> I've read that the IN1 will go bad quickly but I've had a set of tubes 
> running 8 months and they are still going strong, I think maybe it depends 
> on the batch?

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

[chuck richards]

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.
>
>-- 
>You received this message because you are subscribed to the Google
>Groups "neonixie-l" group.
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>https://groups.google.com/d/msgid/neonixie-l/4edd2832-7130-f917-1bf8-
>26e6311f3b94%40zeusprune.ca.
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RE: [neonixie-l] tubes at electols

[chuck richards]

I had a look at Electol's available nixies.
They have quite a few.  Maybe this is another opportunity
for a bunch of us to get together and do a group purchase
such as was done several years ago when Richardson Electronics
liquidated their nixies.

Chuck
>
>
> Original Message 
>From: jfrech...@gmail.com
>To: neonixie-l@googlegroups.com
>Subject: RE: [neonixie-l] tubes at electols
>Date: Thu, 26 Jan 2017 02:58:00 -0800 (PST)
>
>>Today i got an email from a company we order from at work. 
>>
>>Its called Electols, and they will clear out their vacuum tube
>section. I 
>>checked for nixies, and they have some. In the mail it also said
>that they 
>>will accept offers for large quanities (. 
>>Maybe someone is interested in it
>>
>>http://electols.com/shopping/en/4-electron-tubes
>>
>>And for nixies:
>>
>>http://electols.com/shopping/en/search?orderby=position=des
>c_query=nixie
>>
>>
>>They also have magic eyes, dekatatrons etc, but you have to search
>by type. 
>>
>> 
>>
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Re: [neonixie-l] Re: Tube testing?

[Paolo Cravero]

On Mon, Jan 23, 2017 at 8:47 PM, Paul Andrews  wrote:

Hi Paul.


> Is your tester anything like this one
> ? I would love
> to make one, though that isn't what I was asking about!
>

I made one of those out of a laptop CFL driver circuit. It's handy to carry
around, but as Ira pointed out, it only tells if the tube is outgassed.

When I acquired my first Nixies two years ago I bought a Nixie PSU kit
(from Lumos, excellent if you're in Europe). Since then it has been
repurposed as the HV PSU for my first project. So, unless you want to keep
your tubes in their boxes, I think a ready made circuit is well worth the
investment.

I am currently playing with a booster circuit that uses PWM from an
ATmega/Arduino processor and I am facing stability issues in the generated
voltage: too high without load, too much "fall" under 1mA load. It behaves
like a voltage generator with a high internal resistance :-) I think these
circuits do need a true real-time control through a feedback loop (I am
using Ian Sp.'s code and circuit, but he managed it right). I came up with
two workarounds I am trying before implementing an all-software solution:
throw in a 180V zener or keep the booster constantly under load so that the
voltage won't go too high. Or maybe some HV wizard in the group will now
guide me in the right direction. ;-)

I could buy another PSU kit indeed, but for a single-nixie device it's an
overkill and takes space.

Paolo

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[neonixie-l] tubes at electols

[SWISSNIXIE - Jonathan F.]

Today i got an email from a company we order from at work. 

Its called Electols, and they will clear out their vacuum tube section. I 
checked for nixies, and they have some. In the mail it also said that they 
will accept offers for large quanities (. 
Maybe someone is interested in it

http://electols.com/shopping/en/4-electron-tubes

And for nixies:

http://electols.com/shopping/en/search?orderby=position=desc_query=nixie


They also have magic eyes, dekatatrons etc, but you have to search by type. 

 

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