$5.3 and free shipping.
пт, 26 мар. 2021 г. в 10:26, Michail Wilson :
> Better price to buy all?
>
>
>
> Michail Wilson
>
> 206-920-6312
>
>
>
> *From:* neonixie-l@googlegroups.com *On
> Behalf Of * ??
> *Sent:* Friday, March 26, 2021 12:17 AM
> *To:* neonixie-l
> *Subject:*
Better price to buy all?
Michail Wilson
206-920-6312
From: neonixie-l@googlegroups.com On Behalf Of
??
Sent: Friday, March 26, 2021 12:17 AM
To: neonixie-l
Subject: [neonixie-l] IV-11
Hi,
I can find 500 pcs. IV-11 for $5,5 ea. Does anyone need them?
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You received this message
Actually, brightness is a needed feature when this displays are used as
intended. They were designed and are still used with heavy optical filters
in front, to enhance contrast and visually eliminate the tube mechanical
internal structure from the users view.
We of course like to see the tube
I know the difference between a nixie and a VFD tube but I have to say that
your explanation is very nice to summarize all the loose bits of
information in my head.
So If I have a 6 volt supply for my four filaments (in series) I would not
need a resistor. I think the 7806 won't get that warm
So now I only have to figure out wether my two transistor driver is a good
way to drive my IV-11 tubes :)
I was hoping someone more versed in the intricacies of transistors would
address this, but they haven't, so I'll take a stab at it.
I want to build a four digit VFD clock (three of them
Thank you very much for this reply, I'll just order a few values and see
what works.
But I am missing one thing to complete the story; why are current values
given in the datasheet if there is no need for current regulation? or
should those be seen as normal values that you will see during
On 11/19/2013 1:36 PM, John Rehwinkel wrote:
I want to build a four digit VFD clock (three of them actually) without using
drivers like the max6921. I have two possibilities at this moment, one is this
http://i.imgur.com/D4FGaV1.jpg
and the other being this one http://i.imgur.com/5fMc7ty.png .
I'd use the more traditional design with a resistor in series with the base
of the NPN transistor driven by the CPU, rather than the emitter resistor as
you showed.
David has a point - the disadvantage is it uses one more resistor, the (large)
advantage is the functions are now separated -
http://i.imgur.com/CFTb8gI.png
is this what you mean?
Eagle was being weird today so I had to draw it in lochmaster
Why is that better than the original two ideas? I would like to understand
everything :)
Op dinsdag 19 november 2013 21:48:18 UTC+1 schreef nixiebunny:
On 11/19/2013 1:36 PM,
I was typing the previous reply while you posted it, that clears some
things up.
You mention tweaking the value, is there a way to actually calculate it?
(I'm not that much into transistor calculations as you may have noticed)
Op dinsdag 19 november 2013 22:06:16 UTC+1 schreef jrehwin:
I'd
FYI David:
On the clock that I built with IV-11 tubes, I initially started with
an anode voltage of 60v; which is the median multiplexed voltage as per
this datasheet: http://www.tromop.eu/cms/media/IV-11%20datasheet.pdf and
a 1/6 duty cycle (16.67%). That clock was bright. Couldn't sleep in
Hi Gideon,
How many of these clocks are you planning to build? If it is just a
few, then I wouldn't sweat the costs too much. Both of those companies
(used to be - I assume still) are very generous with samples. I agree
that the Supertex and Maxim parts can be difficult to obtain for a low
I'm going to make three clocks (Christmas presents for girlfriend, brother
and sister), but I'll see if I can get samples approved with my university
email. Thank you for your generous offer to send me some samples but I'll
first try to get my own samples at a reasonable price.
Op dinsdag 19
Does anyone know whether it is a bad idea to go below the recommended
multiplexing voltage as mentioned in Adams comment??
Op dinsdag 19 november 2013 23:01:33 UTC+1 schreef Adam Jacobs:
FYI David:
On the clock that I built with IV-11 tubes, I initially started with
an anode voltage of
Mine run from 18v low brightness to 35v for full brightness for the last 3
years and have had no issues.
Sent from my iPhone
On Nov 19, 2013, at 4:16 PM, Gideon Wackers
gideon.wack...@student.uhasselt.be wrote:
Does anyone know whether it is a bad idea to go below the recommended
Does anyone know whether it is a bad idea to go below the recommended
multiplexing voltage as mentioned in Adams comment??
It won't damage the VFD or anything, but it slows down the electrons, so you
could get ghosting while multiplexing. I'm guessing the numbers in the
datasheet are to
If there is one thing I like it is an answer like that :)
I tried to request three samples of the supertex drivers, we'll see if they
grant me some.
Thank you all for the comments, suggestions and solutions up to this point.
I got more (practical) answers here in less than 24 hours than two
:
neoni...@googlegroups.comjavascript:
*Sent:* Monday, July 22, 2013 7:33 PM
*Subject:* Re: [neonixie-l] IV-11 VFD
So many ways to tackle one problem. I get stubborn when one way doesn't
work right the first time and will spend days getting it to work.
I'm trying to keep the interrupts
, July 21, 2013 2:07 PM
To: neonixie-l@googlegroups.com
Subject: Re: [neonixie-l] IV-11 VFD
Thanks for the schematic. It would be overkill if it was just for a clock
but I want to save cycles on the MCU since it was multiplexing the tubes and
boosting the voltage. I was taking cycles away from
From: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On
Behalf Of Spencer
Sent: Sunday, July 21, 2013 2:07 PM
To: neonixie-l@googlegroups.com
Subject: Re: [neonixie-l] IV-11 VFD
Thanks for the schematic. It would be overkill if it was just for a clock but
I want
the voltage. I'll
give it a shot it and see what happens!
From: Bill van Dijk bvd...@xplornet.com
To: neonixie-l@googlegroups.com
Sent: Sunday, July 21, 2013 7:07 AM
Subject: RE: [neonixie-l] IV-11 VFD
Spencer,
Attached is the schematic for my IV17 clock
I have discovered the PT6311 which will handle all of my multiplexing and was
in heaven. After reading the datasheet, I discovered that it uses a negative
supply for the VFD. I made a voltage inverter and tried testing it out on a
tube to see what the connections are. This is where I do not
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