RE: [neonixie-l] P12 Phosphor CRT

[Dave ZL3FJ]

Keep in mind the B&K flying spot scanners use electromagnetic deflection CRTs.

DaveB, NZ

 

From: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On 
Behalf Of Paul Andrews
Sent: Tuesday, February 11, 2020 01:59
To: neonixie-l
Subject: Re: [neonixie-l] P12 Phosphor CRT

 

I just got a B&K 1077B that has one of those purple phosphor tubes. I intend to 
use while repairing TVs, but now you have given me ideas!

On Sunday, February 9, 2020 at 12:46:44 PM UTC-5, Terry Bowman wrote:


> On Feb 9, 2020, at 11:39 AM, jb-electronics   > wrote: 
> 
> Beautiful! There is just something about these phosphor CRTs... 

I have a variety of these. CRTs I mean, not the clock*. The best one is the 
tube inside a video test pattern generator. The flying-spot scanner has very 
fast phosphor that's purple. Too small for this application, though. OTOH, it 
does have the test pattern with the Native American. 

*I'd really like to have one of THESE clocks. Hint, hint. 


Terry Bowman, KA4HJH 
"The Mac Doctor” 

"Never install version point-zero of anything" 

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[neonixie-l] CRT VFD Indicator Tube ILD3

['Yuriy Ovchinnikov' via neonixie-l]

Sale rare USSR CRT VFD Indicator Tube ILD3-L (green) and ILD3-K (red) - 130 
pcs. for $20 ea.

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Re: [neonixie-l] P12 Phosphor CRT

[Nicholas Stock]

Yep! PM me please

On Mon, Feb 10, 2020 at 8:09 PM David Forbes  wrote:

> I have a carton of 3ACP11 tubes. Interested? I'll dig them out.
>
>
> On Mon, Feb 10, 2020, 12:23 PM Nicholas Stock  wrote:
>
>> P11 phosphors aren't too common either I've found.if you find a stash
>> please let me know! :)
>>
>> On Mon, Feb 10, 2020 at 10:26 AM 'Ian Vine' via neonixie-l <
>> neonixie-l@googlegroups.com> wrote:
>>
>>> OMG that purple tube is awesome. Anybody got any for sale ?
>>>
>>> Cheers
>>> Ian
>>>
>>> On Monday, 10 February 2020, 17:12:44 GMT, Nicholas Stock <
>>> nickst...@gmail.com> wrote:
>>>
>>>
>>> Would seem an odd phosphor to use for radar displays then...maybe you
>>> had a bad tube?
>>>
>>> On Mon, Feb 10, 2020 at 9:01 AM David Forbes 
>>> wrote:
>>>
>>> I made a clock with a 3JP12 back in 2002 when I was doing that. It
>>> lasted a few weeks. That phosphor is rather delicate!
>>>
>>> BTW I am working on getting back into the scope clock business, making a
>>> laser cutter for the cases and using a Teensy to do the X-Y signal
>>> generation. I've already written the code; its DACs are excellent for this
>>> job.
>>>
>>>
>>>
>>> On Sun, Feb 9, 2020, 8:56 AM 'Grahame' via neonixie-l <
>>> neonixie-l@googlegroups.com> wrote:
>>>
>>>
>>> Here's Nick showing off a Scope Clock with an orange P12 phosphor CRT.
>>>
>>> https://www.instagram.com/p/B8PIw20HkmH/
>>>
>>>
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Re: [neonixie-l] P12 Phosphor CRT

[David Forbes]

I have a carton of 3ACP11 tubes. Interested? I'll dig them out.


On Mon, Feb 10, 2020, 12:23 PM Nicholas Stock  wrote:

> P11 phosphors aren't too common either I've found.if you find a stash
> please let me know! :)
>
> On Mon, Feb 10, 2020 at 10:26 AM 'Ian Vine' via neonixie-l <
> neonixie-l@googlegroups.com> wrote:
>
>> OMG that purple tube is awesome. Anybody got any for sale ?
>>
>> Cheers
>> Ian
>>
>> On Monday, 10 February 2020, 17:12:44 GMT, Nicholas Stock <
>> nickst...@gmail.com> wrote:
>>
>>
>> Would seem an odd phosphor to use for radar displays then...maybe you had
>> a bad tube?
>>
>> On Mon, Feb 10, 2020 at 9:01 AM David Forbes 
>> wrote:
>>
>> I made a clock with a 3JP12 back in 2002 when I was doing that. It lasted
>> a few weeks. That phosphor is rather delicate!
>>
>> BTW I am working on getting back into the scope clock business, making a
>> laser cutter for the cases and using a Teensy to do the X-Y signal
>> generation. I've already written the code; its DACs are excellent for this
>> job.
>>
>>
>>
>> On Sun, Feb 9, 2020, 8:56 AM 'Grahame' via neonixie-l <
>> neonixie-l@googlegroups.com> wrote:
>>
>>
>> Here's Nick showing off a Scope Clock with an orange P12 phosphor CRT.
>>
>> https://www.instagram.com/p/B8PIw20HkmH/
>>
>>
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[neonixie-l] Re: Corrosion vs. air humidity

[Terry S]

I wouldn't worry about it. The tube generates enough heat in normal 
operation to prevent condensation on the pins.

On Sunday, February 9, 2020 at 6:51:35 PM UTC-6, ZY wrote:
>
> Hello. I live near the coast and my air humidity is pretty high, usually 
> it's around or above 50% on warmer days and maybe even higher if it rains. 
> While I store my nixies in containers with a few silica packets, the nixies 
> that are built into clocks are exposed to the humidity.
>
> I'm wondering if such humidity has any noticeable impact on nixie lifespan 
> in terms of rusting at the glass-metal interface?
>
> Would it be a good idea to apply a bit of conformal coat over the 
> glass-metal interface, or would the risk of the conformal coat chemically 
> attacking the area over time be more than what humidity can do? The coating 
> I usually use for PCBs is MG Chemicals silicone modified conformal coating. 
>

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[neonixie-l] Re: Japanese marking?

[Jon]

Thanks both of you - that fits with my original thought. It's not normal 
for this type of tube to be marked like that, so I'm assuming this one was 
part of a special lot or batch for some reason. There's nothing else about 
it which seems particularly remarkable.

Jon.

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Re: [neonixie-l] P12 Phosphor CRT

[Nicholas Stock]

P11 phosphors aren't too common either I've found.if you find a stash
please let me know! :)

On Mon, Feb 10, 2020 at 10:26 AM 'Ian Vine' via neonixie-l <
neonixie-l@googlegroups.com> wrote:

> OMG that purple tube is awesome. Anybody got any for sale ?
>
> Cheers
> Ian
>
> On Monday, 10 February 2020, 17:12:44 GMT, Nicholas Stock <
> nickst...@gmail.com> wrote:
>
>
> Would seem an odd phosphor to use for radar displays then...maybe you had
> a bad tube?
>
> On Mon, Feb 10, 2020 at 9:01 AM David Forbes  wrote:
>
> I made a clock with a 3JP12 back in 2002 when I was doing that. It lasted
> a few weeks. That phosphor is rather delicate!
>
> BTW I am working on getting back into the scope clock business, making a
> laser cutter for the cases and using a Teensy to do the X-Y signal
> generation. I've already written the code; its DACs are excellent for this
> job.
>
>
>
> On Sun, Feb 9, 2020, 8:56 AM 'Grahame' via neonixie-l <
> neonixie-l@googlegroups.com> wrote:
>
>
> Here's Nick showing off a Scope Clock with an orange P12 phosphor CRT.
>
> https://www.instagram.com/p/B8PIw20HkmH/
>
>
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[neonixie-l] Rodan CD42s

[alex nolan]

Just lost an auction on 2 Rodan CD42 nixie tubes, they wound up selling for 
roughly 720 USD total: 
https://page.auctions.yahoo.co.jp/jp/auction/g402731502

Interesting tubes, they seem to only display the numbers 0-5 but are quite 
large!

(Sidenote: If anyone has any large Rodan nixies they want to sell or trade 
for other large nixies, please contact me via private reply).

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Re: [neonixie-l] P12 Phosphor CRT

['Ian Vine' via neonixie-l]

 OMG that purple tube is awesome. Anybody got any for sale ?
CheersIan
On Monday, 10 February 2020, 17:12:44 GMT, Nicholas Stock 
 wrote:  
 
 Would seem an odd phosphor to use for radar displays then...maybe you had a 
bad tube?

On Mon, Feb 10, 2020 at 9:01 AM David Forbes  wrote:

I made a clock with a 3JP12 back in 2002 when I was doing that. It lasted a few 
weeks. That phosphor is rather delicate!
BTW I am working on getting back into the scope clock business, making a laser 
cutter for the cases and using a Teensy to do the X-Y signal generation. I've 
already written the code; its DACs are excellent for this job.


On Sun, Feb 9, 2020, 8:56 AM 'Grahame' via neonixie-l 
 wrote:


Here's Nick showing off a Scope Clock with an orange P12 phosphor CRT.

https://www.instagram.com/p/B8PIw20HkmH/


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Re: [neonixie-l] 1971 Nixie in a catalog

['Ian Vine' via neonixie-l]

 Tandy (in the UK) was my introduction into electronics. Also a lesson is 
correct part ordering. 
I ordered the parts for a Babini nixie clock, late 70's.  TTL; 7400, 7490, 7441 
and nixie tubes, can't remember the type. What I didn't check was that nearly 
evetything was in packs of 2 or 3 and the prices were per part. Bill came to 
£30+. OK in todaya terms for nixies not much. In late 70's, earing $1.50 for my 
paper round, that was a real "oh shit" moment
CheersIan 
On Monday, 10 February 2020, 15:39:56 GMT, Robert G. Schaffrath 
 wrote:  
 
 

On Sunday, February 2, 2020 at 2:46:55 PM UTC-5, gregebert wrote:
I'll take a dozen NL7037..
I do remember getting one of these catalogs from Radio Shack back in the 70's; 
pages and pages really neat stuff.

I had a catalog too from Radio Shack as they were also owned by Tandy. The 
prices from Allied even then were not the greatest. They were really aimed at 
businesses that could simply write off the cost as a business expense. The only 
thing I ever bought from Allied were some special Chicago Miniature light bulbs 
that I could not find anywhere else.
Looking at the price of the NL-8422, which is basically the same as an IN-12, 
that $15.75 was about a days pay at minimum wage. I would have had to deliver a 
lot of newspapers to afford just one. Of course even now I would spring for an 
NL-7037 if I could find one. Two inch character height - wow!

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[neonixie-l] Re: Corrosion vs. air humidity

[John Snow]

Is it possible to construct a perspex prison with silica gel inside for the 
clocks?

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Re: [neonixie-l] P12 Phosphor CRT

[Nicholas Stock]

Would seem an odd phosphor to use for radar displays then...maybe you had a
bad tube?

On Mon, Feb 10, 2020 at 9:01 AM David Forbes  wrote:

> I made a clock with a 3JP12 back in 2002 when I was doing that. It lasted
> a few weeks. That phosphor is rather delicate!
>
> BTW I am working on getting back into the scope clock business, making a
> laser cutter for the cases and using a Teensy to do the X-Y signal
> generation. I've already written the code; its DACs are excellent for this
> job.
>
>
>
> On Sun, Feb 9, 2020, 8:56 AM 'Grahame' via neonixie-l <
> neonixie-l@googlegroups.com> wrote:
>
>>
>> Here's Nick showing off a Scope Clock with an orange P12 phosphor CRT.
>>
>> https://www.instagram.com/p/B8PIw20HkmH/
>>
>>
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>> .
>>
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> https://groups.google.com/d/msgid/neonixie-l/CAPbqtvdsnDa4VXzJff84bpUPF%2BLMiGgpsJ2z4jTEq3h_hxxzvw%40mail.gmail.com
> 
> .
>

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Re: [neonixie-l] P12 Phosphor CRT

[David Forbes]

I made a clock with a 3JP12 back in 2002 when I was doing that. It lasted a
few weeks. That phosphor is rather delicate!

BTW I am working on getting back into the scope clock business, making a
laser cutter for the cases and using a Teensy to do the X-Y signal
generation. I've already written the code; its DACs are excellent for this
job.



On Sun, Feb 9, 2020, 8:56 AM 'Grahame' via neonixie-l <
neonixie-l@googlegroups.com> wrote:

>
> Here's Nick showing off a Scope Clock with an orange P12 phosphor CRT.
>
> https://www.instagram.com/p/B8PIw20HkmH/
>
>
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>

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Re: [neonixie-l] P12 Phosphor CRT

[Toby Thain]

On 2020-02-10 10:55 AM, 'Grahame' via neonixie-l wrote:
> It's my scope clock
> 
> http://www.sgitheach.org.uk/scope3.html
> 

That's fantastic! Thankyou for the link. Vector graphics is my main
project (as an electronics learner) so this is very inspirational.

--Toby

> Grahame
> 
> On 10/02/2020 15:53, Toby Thain wrote:
>> On 2020-02-10 10:34 AM, Nicholas Stock wrote:
>>> Hi Folks. It’s a 5CP12 tubehas engineering sample sticker, so not
>>> sure how common a phosphor this was...
>>>
>>> Here’s a picture of the other colours..
>>>
>>>
>>>
>>> The P11 is quite a shocking purple!
>>>
>> Nice pics. Just curious what circuitry you're using to generate the
>> signal?
>>
>> Thanks
>> --Toby
>>
> 

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Re: [neonixie-l] P12 Phosphor CRT

[Nicholas Stock]

Other tubes with P12 phosphor are 3JP12’s as far as I can tell. Some of the 
datasheets for others say they were available as P12, but I rarely find them 
for sale anywhere

Sent from my iPhone

> On Feb 10, 2020, at 07:56, 'Grahame' via neonixie-l 
>  wrote:
> 
> It's my scope clock
> 
> http://www.sgitheach.org.uk/scope3.html
> 
> Grahame
> 
>> On 10/02/2020 15:53, Toby Thain wrote:
>>> On 2020-02-10 10:34 AM, Nicholas Stock wrote:
>>> Hi Folks. It’s a 5CP12 tubehas engineering sample sticker, so not
>>> sure how common a phosphor this was...
>>> 
>>> Here’s a picture of the other colours..
>>> 
>>> 
>>> 
>>> The P11 is quite a shocking purple!
>>> 
>> Nice pics. Just curious what circuitry you're using to generate the signal?
>> 
>> Thanks
>> --Toby
>> 
> 
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Re: [neonixie-l] P12 Phosphor CRT

['Grahame' via neonixie-l]

It's my scope clock

http://www.sgitheach.org.uk/scope3.html

Grahame

On 10/02/2020 15:53, Toby Thain wrote:

On 2020-02-10 10:34 AM, Nicholas Stock wrote:

Hi Folks. It’s a 5CP12 tubehas engineering sample sticker, so not
sure how common a phosphor this was...

Here’s a picture of the other colours..



The P11 is quite a shocking purple!


Nice pics. Just curious what circuitry you're using to generate the signal?

Thanks
--Toby



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Re: [neonixie-l] P12 Phosphor CRT

[Toby Thain]

On 2020-02-10 10:34 AM, Nicholas Stock wrote:
> Hi Folks. It’s a 5CP12 tubehas engineering sample sticker, so not
> sure how common a phosphor this was...
> 
> Here’s a picture of the other colours..
> 
> 
> 
> The P11 is quite a shocking purple!
> 

Nice pics. Just curious what circuitry you're using to generate the signal?

Thanks
--Toby

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[neonixie-l] Re: Expensive NIMOs with mounting parts!

[Robert G. Schaffrath]

On Tuesday, February 4, 2020 at 4:52:19 AM UTC-5, Oscilloclock wrote:
>
> Sounds like a good investment! Unless someone starts to produce new NIMOs..
>
> - Aaron
>

While I think they are very interesting, I cannot imagine someone making 
new ones or even that big a demand for them beyond a die-hard hobbyist. 
Nixie's were hard enough to power at 170V using low voltage power supplies 
but the NIMO's require over 1 kV IIRC. Plus all of the used ones I have 
seen had burned phosphor so the tubes would definitely require something 
like anti-poisoning or a "screen saver" to keep them from burning in as 
well. I do not see the phosphor having the same longevity as mercury doped 
Nixie tubes.

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Re: [neonixie-l] 1971 Nixie in a catalog

[Robert G. Schaffrath]

On Sunday, February 2, 2020 at 2:46:55 PM UTC-5, gregebert wrote:
>
> I'll take a dozen NL7037..
>
> I do remember getting one of these catalogs from Radio Shack back in the 
> 70's; pages and pages really neat stuff.
>

I had a catalog too from Radio Shack as they were also owned by Tandy. The 
prices from Allied even then were not the greatest. They were really aimed 
at businesses that could simply write off the cost as a business expense. 
The only thing I ever bought from Allied were some special Chicago 
Miniature light bulbs that I could not find anywhere else.

Looking at the price of the NL-8422, which is basically the same as an 
IN-12, that $15.75 was about a days pay at minimum wage. I would have had 
to deliver a lot of newspapers to afford just one. Of course even now I 
would spring for an NL-7037 if I could find one. Two inch character height 
- wow!

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Re: [neonixie-l] P12 Phosphor CRT

[Paul Andrews]

I just got a B&K 1077B that has one of those purple phosphor tubes. I 
intend to use while repairing TVs, but now you have given me ideas!

On Sunday, February 9, 2020 at 12:46:44 PM UTC-5, Terry Bowman wrote:
>
>
> > On Feb 9, 2020, at 11:39 AM, jb-electronics  > wrote: 
> > 
> > Beautiful! There is just something about these phosphor CRTs... 
>
> I have a variety of these. CRTs I mean, not the clock*. The best one is 
> the tube inside a video test pattern generator. The flying-spot scanner has 
> very fast phosphor that's purple. Too small for this application, though. 
> OTOH, it does have the test pattern with the Native American. 
>
> *I'd really like to have one of THESE clocks. Hint, hint. 
>
>
> Terry Bowman, KA4HJH 
> "The Mac Doctor” 
>
> "Never install version point-zero of anything" 
>
>

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[neonixie-l] Japanese marking?

[Oscilloclock]

That’s right about the kanji meaning. It could refer to the lot or factory even.

But just maybe it is the first kanji in someone’s name (like 島田) who did the QC 
on it? Pure conjecture, of course.

By the way this was fun (but nothing new probably): 
http://kawoyama.la.coocan.jp/okayamusen%20rodanelentronics%20parts.pdf

- Aaron

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[neonixie-l] Re: P12 Phosphor CRT

[Alex]

Which model of CRT tube is that, as it is a nice size? 

For that matter, what commonly available tubes had P12 phosphors as it is a 
very pleasing colour (probably why it was used in later computer terminal 
dispplays I guess...)

I do like the sharpness of the numerals on that clock, very cool.

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[neonixie-l] P12 Phosphor CRT

[Oscilloclock]

Exquisite, Nick!!

- Aaron

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