[neonixie-l] Re: tiny little counter at a fair price!

[newxito]

Got some 2N3055 transistors... time to make a "High Power" nixie clock with 
a big heatsink :-)

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Re: [neonixie-l] Re: tiny little counter at a fair price!

[HuggerMugger]

Have you looked inside? 2N3055 aren’t that unobtainable but still ... 
I got two pars 2SK135/2SJ50  From China.

/M

From: newxito 
Sent: Thursday, March 26, 2020 10:48 AM
To: neonixie-l 
Subject: [neonixie-l] Re: tiny little counter at a fair price!

Got some 2N3055 transistors... time to make a "High Power" nixie clock with a 
big heatsink :-)
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Re: [neonixie-l] Re: tiny little counter at a fair price!

[newxito]

I’ve got these ones (ST, with the marking on the top) from Reichelt Germany 
for $0.9 each, probably the last ones, because now they are no longer 
listed. 

>

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[neonixie-l] Re: 15 digit IV-17 VFD

[Jon D.]

I would be interested in one of these IV-17 16-digit displays, too.

Jon D.

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[neonixie-l] Re: 15 digit IV-17 VFD

[Mitch]

>
> I got them on ebay. They are just 6 pin, dual row, 2.54mm spacing female 
> headers. The male headers come in strips of 40, and are easily cut to size.
>

I'm finding that the brightness of the IV-17s is very inconsistent. At 30v 
one batch is perfectly bright, and at 45v, which is probably the maximium 
for the TBD62783 chips, another batch is not bright enough.

The board is 362mm x 67mm. There are twelve, SMD chips on the bottom. Six 
TBD62783s, two HT16K33s, three 74HC04s, and one 74HC125D. There are 1120 
solder joints required just for the tubes and headers. The board in the 
picture is really hacked up. Updated boards are on order.



 

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[neonixie-l] Re: 15 digit IV-17 VFD

[gregebert]

Can you measure the segment current ? For a given current, the brightness 
should be similar for tubes in the same condition. If not, there is a 
problem with manufacturing consistency. As VFDs age, they produce less 
luminous output. Some will develop visible dark bands nearest the 
filament(s), due to greater electron bombardment.

Mitch - You did a great job hiding your board where it's "really hacked 
up". Picture looks like a mature product that's been pulled off the 
assembly line.

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Re: [neonixie-l] Re: 15 digit IV-17 VFD

[Nicholas Stock]

Mitch, I have noticed with some clocks that use either IV25 or IV26 VFD
tubes (the dot matrix type ones) that they take a bit of time to
stabilize/age/reach peak luminosity ...not sure if that's just dumb luck on
my part or there's something to itI'm sure someone else on the list
knows more about them than I! I've definitely had segments that have looked
dull to start with but after overnight use have gotten brighter

Nick

On Thu, Mar 26, 2020 at 12:52 PM gregebert  wrote:

> Can you measure the segment current ? For a given current, the brightness
> should be similar for tubes in the same condition. If not, there is a
> problem with manufacturing consistency. As VFDs age, they produce less
> luminous output. Some will develop visible dark bands nearest the
> filament(s), due to greater electron bombardment.
>
> Mitch - You did a great job hiding your board where it's "really hacked
> up". Picture looks like a mature product that's been pulled off the
> assembly line.
>
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> .
>

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Re: [neonixie-l] Sperry / Beckman SP-101 Panaplex display

['John Rehwinkel' via neonixie-l]

These might work well.

https://www.goldmine-elec-products.com/prodinfo.asp?number=G24679 


- John

> On Mar 24, 2020, at 4:22 AM, Richard Scales  wrote:
> 
> The only thing I would say is that the pins on SP-101's are really thin, they 
> are lost in a 1.0mm pin socket. They are also lost in 0.75mm pin socket. I 
> just measured the diameter of one of the pins and it was about 0.46mm which 
> is super skinney.
> 
> 
> On Monday, 23 March 2020 20:36:11 UTC, martin martin wrote:
> I use the pin sockets I found on eBay.  They work well.
> https://www.ebay.com/itm/100-Nixie-IN-12-IN-18-receptable-pin-sockets-1-0mm/133366461097?hash=item1f0d42b2a9:g:l8oAAOSwk8RedLU0
>  
> 
>  
> 
>  
> 
> 
> 
> ~
> mcve...@gmail.com 
> 
> On Mon, Mar 23, 2020 at 6:02 AM ZethieTail > 
> wrote:
> im just trying to find sockets for my displays, but i dont really need em i 
> think, ill just go with individual pin sockets  or wiring up the display 
> directly to the pins, but if i design a board i hope i get the pin layout 
> right
> 
> On Thursday, March 19, 2020 at 8:15:00 PM UTC-7, Richard Scales wrote:
> I am trying to get enough displays and sockets for a clock and i recognise 
> the board in your photos. Are you (anyone else) willing to part with displays 
> and sockets?
> 
> On Saturday, 21 December 2019 14:51:31 UTC, Richard Scales wrote:
> Does anyone have any data on these Panaplex displays?
> 
> I am particularly interesting in finding out what the specified cathode 
> currents are for the various parts of the display, colon, comma and decimal 
> point might be?
> 
> From digging around it seems that they are all in the micro amp region - 
> typically 300 micro amps for the larger sections though it would be good to 
> know for sure.
> 
> Also, has anyone made a board or have a 'footprint' that I could use? I have 
> measured one but it would be great if accurate data was available.
> 
> Richard
> 
> 
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Re: [neonixie-l] Sperry / Beckman SP-101 Panaplex display

[Mac Doktor]

> On Mar 24, 2020, at 4:22 AM, Richard Scales  wrote:
> 
> The only thing I would say is that the pins on SP-101's are really thin, they 
> are lost in a 1.0mm pin socket. They are also lost in 0.75mm pin socket. I 
> just measured the diameter of one of the pins and it was about 0.46mm which 
> is super skinney.


> On Mar 26, 2020, at 5:39 PM, 'John Rehwinkel' via neonixie-l 
>  wrote:
> 
> These might work well.
> 
> https://www.goldmine-elec-products.com/prodinfo.asp?number=G24679 
> 
Those pins have an internal diameter of .03" which is .762mm. I guess it's back 
to the drawing board.


Terry Bowman, KA4HJH
"The Mac Doctor"

https://www.astarcloseup.com/

“The book said something astonishing, a very big thought.
It said that the stars were suns, only very far away.
The Sun was a star, but close up.”—Carl Sagan, Cosmos, 1980


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Re: [neonixie-l] Sperry / Beckman SP-101 Panaplex display

[gregebert]

Are you OK soldering them ? As long as you have a good-quality PCB 
manufacturer, the PCB will tolerate rework (install-remove-install).
I had to deal with that with my watch; soldered-down an SP-151, then found 
I had to unsolder, remove, and re-install. Wasn't too bad.

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Re: [neonixie-l] Sperry / Beckman SP-101 Panaplex display

[Richard Scales]

PM Sent


On Friday, 27 March 2020 02:30:34 UTC, martin martin wrote:
>
> Here's one I found in a box if Nixie's.  Free! (just postage). Sanitized 
> too...
>
>
>
>>

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