NE-2H (Neon Lamp) Specifications

[Jim Thompson]

On Tue, 09 Dec 2003 13:20:37 GMT, "Oppie" <boppie@-nospam-ludl.com>
wrote:

If you would also like, I can repost the scan of 'The Ubiquitous Neon'
from
the "Electrical Experimenter's Handbook" (1969)

Great applications for the NE-2 series of indicators. Useful for
everything
from voltage regulators to bistable logic elements and just about
everything
in between.

Oppie


Hi Oppie, Sure would appreciate that! Thanks!

...Jim Thompson


See attached PDF [early Christmas Present]
Regards to all

Thanks, Oppie!!

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice480)460-2350 | |
| E-mail Address at Website Fax480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.

 

[Louis Scheffer]

shoppa@trailing-edge.com (Tim Shoppa) writes:

Rich Grise <spamdump@nowhere.net> wrote in message news:<3FD52E61.F6EE51FB@nowhere.net>...
I think I even saw a "ring oscillator" once. That's like an
astable, but with more than 2 stages. Haven't built one yet,
however.

The first digital clock I ever saw (about 1965) used Nixie tubes as both
the output display and the storage elements. Each digit was wired in a
ring-oscillator like (but stable) arrangement. When the input pulse came
in the current number was turned off and the next on. Clearly there must
have been some trick to get it into the right initial state, or at least
some initial state with only one lamp lit. but at the time (7th grade) I
didn't know enough to ask about that. (and I hope I'm remembering it correctly)

There were neon tubes optimized for this sort of operation, with a single
small dot for each state, rather than a whole digit.

http://www.wps.com/projects/decimal-tubes/index.html#DECIMAL

but as best I remember the design used the Nixie (with perhaps a single
transistor/digit) for the state storage as well as the display. Of course
it did not need to count very fast....

Lou Scheffer

 

[Oppie]

"Louis Scheffer" <lou@cadence.com> wrote in message
news:3fd60bf4$1@news.cadence.com...

shoppa@trailing-edge.com (Tim Shoppa) writes:

Rich Grise <spamdump@nowhere.net> wrote in message
news:<3FD52E61.F6EE51FB@nowhere.net>...
I think I even saw a "ring oscillator" once. That's like an
astable, but with more than 2 stages. Haven't built one yet,
however.

The first digital clock I ever saw (about 1965) used Nixie tubes as both
the output display and the storage elements. Each digit was wired in a
ring-oscillator like (but stable) arrangement. When the input pulse came
in the current number was turned off and the next on. Clearly there must
have been some trick to get it into the right initial state, or at least
some initial state with only one lamp lit. but at the time (7th grade) I
didn't know enough to ask about that. (and I hope I'm remembering it
correctly)

There were neon tubes optimized for this sort of operation, with a single
small dot for each state, rather than a whole digit.

http://www.wps.com/projects/decimal-tubes/index.html#DECIMAL

but as best I remember the design used the Nixie (with perhaps a single
transistor/digit) for the state storage as well as the display. Of
course
it did not need to count very fast....

Lou Scheffer

Similar to the early nuclear monitoring equipment. the earliest Gieger
counter with electronic counters had several columns of indicators labeled
0-9. they were neon type indicators that advanced with each count. at '9'
reset to 0 and cary to next column. Awkward to read but from what I
understand, implemented only with the neon indicators as the counting
elements.

Oppie

 

[Steve Sousa]

Oppie wrote:

If you would also like, I can repost the scan of 'The Ubiquitous
Neon' from the "Electrical Experimenter's Handbook" (1969)

Could you please repost it? It didn't come up on my isp :-(

Or send it to:
etsteve@ .
yahoo.com .

--
Steve Sousa

 

[Oppie]

In replying to Jim's message with the post, I forgot to delete the other
non-binaries groups from the address. the only group it should actually be
in is a.b.s.e.

Copy sent by email (broadband is great)

--
For correct response address, remove -nospam-
=========
"Steve Sousa" <etsteve@yahoo.com> wrote in message
news:newscache$0yfnph$mo6$1@newsfront4.netvisao.pt...

Oppie wrote:

If you would also like, I can repost the scan of 'The Ubiquitous
Neon' from the "Electrical Experimenter's Handbook" (1969)

Could you please repost it? It didn't come up on my isp :-(

Or send it to:
etsteve@ .
yahoo.com .

--
Steve Sousa

 

[Rich Grise]

Heh! They need a proofreader! Anybody see anything wrong with
the caption (and the circuit, for that matter) in Fig. 13,
page 100? (100??!?!?!!!??? --- 0h, I see. It's from a mag, and
starts at 94. Never mind.)

(and I already know at least 3 answers, of which 2 are related,
I'm not asking just to get the answer without looking for it.
Oh! I've got it! Spoiler Space! |
v

Cheers!
Rich

Oppie wrote:

....

Name: Ubiquitous Neon.pdf
Ubiquitous Neon.pdf Type: AcroRd32 File (application/pdf)
Encoding: x-uuencode
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1. It's holding a constant voltage at the _cathode_.
2. The feedback is to the control grid. The screen grid
is connected to that 22K.
3. OOpps! I thought that was 3 errors, because if it
really was intended to go to the screen grid, (which
the voltage level is all wrong, and there's nothing
being input to mix it with), the tube would be drawn
wrong. Never mind. ;-)

Cheers!
Rich

 

[Rich Grise]

Somehow, having Fig.16 from the .pdf and that ring osc.
from the link Tim Shoppa posted both in my brain simultaneously,
out pops:

Jeopardy Light!

+V (or minus V - what the heck, they're NE-2's!)
|
[R1]
|
+-------+-------+---+---+-------+-------+-------+
| | | | | | |
| | | | | | |
[N] [N] [N] [N] [N] [N] [N]
| | | | | | |
+-+-+ +-+-+ +-+-+ +-+-+ +-+-+ +-+-+ +-+-+
| | | | | | | | | | | | | |
[R] [R] [R] [R] [R] [R] [R]
| | | | | | | | | | | | | |
+---+---+---+---+---+-+-+---+---+---+---+---+---+---+
|
|
|
-V

First guy that fires hogs all the volts. This would work,
wouldn't it? Or has it been done,like, a hundred years ago?

Cheers!
Rich

Oppie wrote:

If you would also like, I can repost the scan of 'The Ubiquitous Neon'
from
the "Electrical Experimenter's Handbook" (1969)

Great applications for the NE-2 series of indicators. Useful for
everything
from voltage regulators to bistable logic elements and just about
everything
in between.

Oppie


Hi Oppie, Sure would appreciate that! Thanks!

...Jim Thompson

See attached PDF [early Christmas Present]
Regards to all

Name: Ubiquitous Neon.pdf
Ubiquitous Neon.pdf Type: AcroRd32 File (application/pdf)
Encoding: x-uuencode

 

[Chuck Harris]

Rich Grise wrote:

Somehow, having Fig.16 from the .pdf and that ring osc.
from the link Tim Shoppa posted both in my brain simultaneously,
out pops:

Jeopardy Light!

+V (or minus V - what the heck, they're NE-2's!)
|
[R1]
|
+-------+-------+---+---+-------+-------+-------+
| | | | | | |
| | | | | | |
[N] [N] [N] [N] [N] [N] [N]
| | | | | | |
+-+-+ +-+-+ +-+-+ +-+-+ +-+-+ +-+-+ +-+-+
| | | | | | | | | | | | | |
[R] [R] [R] [R] [R] [R] [R]
| | | | | | | | | | | | | |
+---+---+---+---+---+-+-+---+---+---+---+---+---+---+
|
|
|
-V

First guy that fires hogs all the volts. This would work,
wouldn't it? Or has it been done,like, a hundred years ago?

Cheers!
Rich

Uhmmm? This really makes no sense! What are the "R" and "S"
parts of the schematic? Reset and Set push buttons? ..or Resistor
and Switch?

Me thinks you have a wee little bit more work to do.

-Chuck

 

[Tim Shoppa]

Rich Grise <spamdump@nowhere.net> wrote in message news:<3FD8051F.11492B4B@nowhere.net>...

Somehow, having Fig.16 from the .pdf and that ring osc.
from the link Tim Shoppa posted both in my brain simultaneously,
out pops:

Jeopardy Light!

+V (or minus V - what the heck, they're NE-2's!)
|
[R1]
|
+-------+-------+---+---+-------+-------+-------+
| | | | | | |
| | | | | | |
[N] [N] [N] [N] [N] [N] [N]
| | | | | | |
+-+-+ +-+-+ +-+-+ +-+-+ +-+-+ +-+-+ +-+-+
| | | | | | | | | | | | | |
[R] [R] [R] [R] [R] [R] [R]
| | | | | | | | | | | | | |
+---+---+---+---+---+-+-+---+---+---+---+---+---+---+
|
|
|
-V

First guy that fires hogs all the volts. This would work,
wouldn't it? Or has it been done,like, a hundred years ago?

Is the per-neon [R] a resistor or a reset switch? I don't
think it's a reset switch because the simplest way to do that is
to disconnect power.

If it's a resistor then I don't think the circuit will work as
intended ... a neon will fire even before a switch has been closed.

All that said, remove the per-neon [R]'s and then I think it'll be
what you want.

The circuit of Fig 16 is true genius. Not only does it tell you who was
first, but also second, third, etc. True genius!

Tim.