[neonixie-l] Re: Tectrol SP215 VFD power supply data

[Larry]

Thanks for the reply. I tried 6v on the left two pins but not getting 
expected results. I went to the CUI web site and searched but no datasheet 
so I sent a requested. No response yet.

On Saturday, April 1, 2023 at 3:16:47 PM UTC-4 5-ht wrote:

> Larry,
> You might check with CUI (cui.com); they bought Tectrol a few years ago 
> and might still have data on Tectrol products.
>
> If the pinout of this converter conforms to the majority of ones that I 
> have seen, the two pins on the left would be the input.
> As this was intended for VFDs, I would expect that the top two pins on the 
> right would be the 30 VDC output and the bottom three would be the 3.7 VAC 
> filament output, with a center tap. Often the center tap is either grounded 
> or perhaps elevated a few volts DC for cathode bias when used with 
> multiplexed displays.
>
> Just my guess!
>
> Mark
>
> On Saturday, April 1, 2023 at 7:43:05 AM UTC-5 Larry wrote:
>
>> Anyone have any information on the Tectrol SP215 VFD power supply? Pin 
>> out or any information would be helpful. I have searched but not been able 
>> to find any data.
>> Thanks
>> [image: tectrolSP215top.jpeg]
>> [image: tectrolSP215pins.jpeg]
>>
>

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Re: [neonixie-l] Nixie for sale

[Larry]

By Difficult Situation, do you mean Russia invading Ukraine and killing 
thousands of innocent people? Go out and protest before World War 3 starts!
Any of you neonixie users that knowingly violate the sanctions should be 
ashamed! WTF is wrong with you people?! How many Ukrainian nixie sellers 
have probably been killed by Russia?!

On Wednesday, November 9, 2022 at 2:35:27 PM UTC-5 Юрий Овчинников wrote:

> Please write to murman_...@mail.ru
>
> ср, 9 нояб. 2022 г. в 22:33, Yuriy Ovchinnikov <1219y...@gmail.com>:
>
>> Tubes from Russia. Delivery and payment through Armenia.
>>
>> вт, 8 нояб. 2022 г. в 09:50, Michail Wilson :
>>
>>> I am interested in several.
>>>
>>>  
>>>
>>> I thought product can’t come from Russia.  At least not through ebay.   
>>> Am I wrong?
>>>
>>>  
>>>
>>> Michail 
>>>
>>>  
>>>
>>> *From:* neoni...@googlegroups.com  *On 
>>> Behalf Of *Yuriy Ovchinnikov
>>> *Sent:* Sunday, October 30, 2022 10:52 PM
>>> *To:* neoni...@googlegroups.com
>>> *Subject:* Re: [neonixie-l] Nixie for sale
>>>
>>>  
>>>
>>> Sale:
>>>
>>> IN-2 - 41 pcs. for $2
>>>
>>> IN-4 - 34 pcs. for $3
>>>
>>> IN-8 – 21 pcs. for $10
>>>
>>> IN-12 – 757 pcs. for $6
>>>
>>> IN-14 used – 520 pcs. for $10
>>>
>>> IN-14 – 20 pcs. for $30
>>>
>>> IN-16 used – 179 pcs. for $6
>>>
>>> IN-16 – 12 pcs. for $8
>>>
>>> IN-17 used – 26 pcs. for $6
>>>
>>> IN-17 – 9 pcs. for $8
>>>
>>> Z570M used - 12 pcs. for $5
>>>
>>>  
>>>
>>>  
>>>
>>>  
>>>
>>> ср, 15 июн. 2022 г. в 16:42, Tidak Ada :
>>>
>>> PayPal uses SEPA, therefore not possible
>>>
>>>  
>>>
>>> *Van:* neoni...@googlegroups.com [mailto:neoni...@googlegroups.com] *Namens 
>>> *Michail Wilson
>>> *Verzonden:* woensdag 15 juni 2022 14:29
>>> *Aan:* neoni...@googlegroups.com
>>> *Onderwerp:* Re: [neonixie-l] Nixie for sale
>>>
>>>  
>>>
>>> So, no PayPal?
>>>
>>> Sent from my iPhone
>>>
>>>  
>>>
>>> On Jun 15, 2022, at 6:51 AM, 'Yuriy Ovchinnikov' via neonixie-l <
>>> neoni...@googlegroups.com> wrote:
>>>
>>> 
>>>
>>> Hello friends. Due to the difficult situation, for a long time it was 
>>> not possible to put up nixies for sale. Currently, the logistics are built. 
>>> I have the opportunity to send goods through Armenia. Payment will also 
>>> need to be made to a bank account in Armenia. I apologize for these 
>>> complications. But, unfortunately, now I can't do it any other way. So for 
>>> sale:
>>>
>>> IN-8 – 21 pcs. for $10
>>>
>>> IN-12 – 457 pcs. for $6
>>>
>>> IN-14 used – 109 pcs. for $10
>>>
>>> IN-14 – 7 pcs. for $30
>>>
>>> IN-16 used – 17 pcs. for $6
>>>
>>> IN-16 – 3 pcs. for $8
>>>
>>> IN-17 used – 14 pcs. for $6
>>>
>>> IN-17 – 6 pcs. for $8
>>>
>>> IN-18 – 21 pcs. for $70
>>>
>>> -- 
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>>>  
>>> 
>>> .
>>>
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>>> 
>>> .
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>>>  
>>> 

[neonixie-l] Re: IN-18 What is between Pins 1 and 8?

[Larry]

Thank you to everyone that responded with the answer. Never would have 
guessed this. To follow up; is it common for the capsule and wire to come 
loose and float inside the tube? Depending on where the wire rests it 
shorts digits together.

On Wednesday, June 15, 2022 at 10:43:59 AM UTC-4 Paul Andrews wrote:

> It is a capsule that contained mercury. It was heated up when the tube was 
> manufactured to release the mercury. The addition of mercury to the tubes 
> vastly extends their lifetime.
>
> On Tuesday, June 14, 2022 at 10:15:13 PM UTC-4 lawill...@gmail.com wrote:
>
>> I recently got some IN-18 nixies and noticed an internal coil/wire 
>> between pins 1 and 8. What is it? 
>> In one of my tubes the wire has come disconnected and loose inside the 
>> tube shorting digits together.
>> Thanks
>>
>

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[neonixie-l] IN-18 What is between Pins 1 and 8?

[Larry Willson]

I recently got some IN-18 nixies and noticed an internal coil/wire between 
pins 1 and 8. What is it? 
In one of my tubes the wire has come disconnected and loose inside the tube 
shorting digits together.
Thanks

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[neonixie-l] Re: How can I make a NIXIE WATCH case

[Larry]

A member of the Milwaukee Makerspace is planning on using the CNC mill to 
cut a case out of aluminum.  I suppose that a plastic could be milled to 
size and shape as well.

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Re: [neonixie-l] Possible Nixie tubes?

[Larry]

That does make more sense.

On Saturday, May 19, 2018 at 11:46:43 AM UTC-5, jrehwin wrote:
>
> The display on this looks like it's nixie tubes.  Looks like 24VAC plus 
> 450 VDC power required.
>
>
> https://www.ebay.com/itm/Thornton-Associates-Inc-DEC-102-Decade-Counter-Decimal-Digits-Laboratory-Unit/232161267621?hash=item360de3cfa5:g:-MQAAOSw-0xYQHPq
>
>
> That 450V makes me think it uses dekatrons.
>
> - John
>
>

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[neonixie-l] Rasberry Pi Nixie Shield

[Larry]

Just received my Raspberry Pi Nixie shield with 6 different sockets from 
Marcin.  Now I'm trying to find some assembly instructions.  Checked the 
Indiegogo fund raiser and didn't find any links there.  The NixieTester web 
site had nothing.   Each socket has 5 layers of laser cut acrylic, a 
circuit board, and pins and I have no idea what order the layers go in.

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[neonixie-l] National NL5866SX Data

[Larry]

I just picked up a National NL5866SX NIXIE tube.  I haven't been able to 
locate any pinout information.  Does anyone here have it?

Thanks,
Larry

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[neonixie-l] Re: Numitron clock driving question

[Larry]

Hi Mark,

It's nice to find another burner on the list.

Larry

On Friday, February 23, 2018 at 8:10:24 AM UTC-6, Mark Moulding wrote:
>
>
>

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[neonixie-l] Will pay to get this nixie project built!

[Larry Bieza]

Hi, I need a 2 tube nixie 1n-8 timer.  The display when powered up will sit 
at 60.  Then when you press a switch(I provide) it will start 0 and count 
down 60 seconds to 00, at which point it will energize a small relay(you 
provide).  I'd pay $100(includes shipping).  I live in the US.  LMK.  THX

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[neonixie-l] Re: IV-20 on ebay

[Larry]

A little out of MY price range.

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[neonixie-l] Re: WAY way off topic but they light up...

[Larry]

Did anyone notice that his left hand was not visible every time the
pattern changed?

On Nov 14, 5:21 pm, orange_glow_fan grandpacorv...@yahoo.com wrote:
 Hi John,

 Who knew following a lead from youtube would end up right back here
 where the orange glow reigns supreme. !

 John, that youtube video/link mentions selling some examples on Ebay.
 Did that ever come to pass? Are any available?

 Kerry

 P.S  My dear father in law was a long time member of the Inner Magic
 Circle in England before he passed and lectured over there a couple of
 times.



  Been there, done that one. I worked it out and have made a version of
  this trick that is much better. It is housed in a completely
  transparent box and you can even take the batteries out and it still
  works.

  It's hilarious, someone wrote to say he's worked it out, apparently I
  have a hole in the table and it is worked from underneath. No, I
  assure it works if you hold it in the air and look all round it. Of
  course if I tell you how it works I'd have to kill you. It's not me
  demoing, it is my magician friend Sean, aka Voltar.

 http://youtu.be/lw9MGa7iQq4

  John S

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[neonixie-l] Re: US power grid frequency tests.

[Larry]

I recently completed a Kabtronics Nixie clock that uses line
frequency.  Now I'm going to have to add a 60Hz generator to it.
Thanks for the link.


On Jun 26, 11:05 am, neutron spin mrstan...@charter.net wrote:
 It's a conspiracy between Elm electronics the FERC.

 http://www.elmelectronics.com/ebench.html#Oscillators


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[neonixie-l] Re: Powerline freq

[Larry]

Power companies may no longer keep the frequency exactly

my.earthlink.net/article/tec?guid=201106...92-875d-333c443bf009

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[neonixie-l] Re: INS-1 flickering

[Larry]

I looked closely at my assembly and determined that the two tubes are
wired in reverse polarity.  This adds weight to your theory about
polarity being the cause of the flicker.  I'll build up a couple sets,
one each with both tubes one polarity or the other and see if on pair
flickers and the other doesn't.

On Feb 11, 2:53 pm, threeneurons threeneur...@yahoo.com wrote:

 2) Polarity. The INS-1 has two metal structures inside the glass. One
 is the anode, and one is the cathode. I believe the lower of the two
 structures is the anode. Its shaped like a cup, emptying downward.
 This structure is connected to the lead which has a bump (dot) on the
 glass envelope. The cathode structure is above it, just under the
 glass lens. Its shaped like a hollow cylinder. The cathode is usually
 larger, since that's the electrode that gets eaten away over time. The
 current should be high enough to cover this structure.

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[neonixie-l] Re: INS-1 flickering

[Larry]

Changing the polarity does the trick.

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[neonixie-l] INS-1 flickering

[Larry]

I'm in the final stages of putting together a clock using INS-1 tubes
for the colon dots. The dots alternate lighting every second. I'm
using an ArduinoNIX as my power supply, cathode controller, and anode
switches. Each of the INS-1 tubes uses an 180k ohm anode resistor. My
problem is that one of the INS-1 tube works fine while the other
starts it's glow at the top of the tube and then it moves to the base
of the tube. Is this common for INS-1 tube or have I just got a bad
one?

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[neonixie-l] Re: NE70V neon tubes

[Larry]

I ran the least poisoned tube for 8 hours at 30 mA.  This morning all
but a small dot of poisoning has gone away.  Both surfaces glow over
their whole area.  The voltage across the tube dropped to 68.5 VAC.
Now on to the second tube with hopes for similar results.

  But those usually have more cathode surface, so I suspect the real max
  current rating is something less. Maybe as little as 10mA, for long
  durations. If its a solid 70V over the current range, then that's
  pretty good. A 0A3, usually varies ~5V over its operating current
  range.

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[neonixie-l] Re: NE70V neon tubes

[Larry]

I just received my two tubes today and powered them up.  Severe
cathode poisoning.  Almost half doesn't glow.
I wired it up in series with a 10k rheostat and milliampmeter to 120
VAC.  I also placed a voltmeter across the tube.
I ran the current from 20 mA up to 40 mA.  At all current levels the
voltage across the tube stayed at about 70 VAC.
Looking at the box I saw that the tube was sold as a ballast
regulator.  From what I saw it seems to be regulating the voltage to
70 volts.
I guess the next step would be to measure the volage across the
rheostat, but if the voltage across the tube never changes then I
expect the voltage across the resistance will stay the same as well.

Tried to find some web info on the theory of ballast regulators but
nothing popped up that mentioned using a neon bulb.

On Nov 8, 4:19 pm, threeneurons threeneur...@yahoo.com wrote:

 So, back to the NE-70. If the voltage drop is small, say 25V, or less,
 then there most likely is an internal limiting resistor. If it does
 appear to have an internal resistor, then get rid of the external one.

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[neonixie-l] Re: NE70V neon tubes

[Larry]

I did notice that as the current got closer to 40 mA the glow moved
from neon orange to more pink.  I'm sure an indication that I was
close to the failure point.  I'm going to try running it at 30 mA
overnight and see what happens.  It does look like it's similar to the
OA3.

On Nov 8, 6:52 pm, threeneurons threeneur...@yahoo.com wrote:
 ... Voltage
 regulator tubes, of this size range, usually have a max current rating
 ~40mA. See 0A3:

 http://frank.pocnet.net/sheets/127/0/0A3.pdf

 But those usually have more cathode surface, so I suspect the real max
 current rating is something less. Maybe as little as 10mA, for long
 durations. If its a solid 70V over the current range, then that's
 pretty good. A 0A3, usually varies ~5V over its operating current
 range.

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[neonixie-l] NE70V neon tubes

[Larry]

I've just purchased a pair of Amperite NE70V neon tubes.  The seller
has no information on them and I've found nothing on the web.  They
appear to have an octal base and a large circular plate in the
center.  Does anyone here have any info on these?

Larry

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[neonixie-l] Re: NE70V neon tubes

[Larry]

Those are the ones.  The word NEON is printed on the top of the tube.
I'm hoping they're just large neon bulbs and that only two pins are
used.  I guess I'll find out when they arrive.

Larry

On Nov 4, 6:14 pm, jb-electronics webmas...@jb-electronics.de wrote:
 Hi Larry,

 talking about this auction? Ebay # 160498913376

 I saw them, too, but sadly I do not know what they are, either. The
 nomenclature NE suggests that they  are some kind of neon bulb.

 Jens

 Am 05.11.2010 00:02, schrieb Larry:

  I've just purchased a pair of Amperite NE70V neon tubes.  The seller
  has no information on them and I've found nothing on the web.  They
  appear to have an octal base and a large circular plate in the
  center.  Does anyone here have any info on these?

  Larry

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[neonixie-l] Re: NE70V neon tubes

[Larry]

Thanks for the info.  Now all I have to do is find my box of wire
wound resistors.  I haven't seen them since I moved here 20 years
ago.  Who knows, there might even be a wire wound rheostat hiding
somewhere in my dungeon.

And yes, I remember my guzintas.

Larry
On Nov 4, 10:04 pm, threeneurons threeneur...@yahoo.com wrote:


 When you get yours make a simple burn-in jig, using the household
 110VAC and a power resistor. I'd start with an assumed sustained
 voltage of 70V (just a guess), and peak current of 20mA. 165V (peak
 value of 120Vrms) knock off 70V, gives you 95V. 95 goes-n-ta (see
 Beverly Hillbillys - Jethro  Advanced Math) .02Amps, 4750 times. So
 that's ~4.7K, and 95 times .020 (20mA) is ~2Wpeak; ~1Wrms. A 5W power
 resistor should do fine. See how much of the electrode surface lights
 up, and see if it grows after a few minutes. If not, make the
 resistance smaller. Cut it in half. Keep an eye on it. Don't do a 'Dr
 Conrad Murray' (see Michael Jackson), and ignore your patient. Results
 may end up similar.

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