Ok, H-bridge is a nice idea too. It just happens that I do got several
LM4871 looted from school's lab and I was trying to testify that LM4871 ==
LM9022 statement. Still, Si9986 seems a little like a overkill for a
filament, considering the price, lol.
On Wednesday, July 13, 2016 at 5:12:40 AM
Yeah, found those! Siberian store have have the VI but it is out of stock.
Considering the difficulty of turning them on, now I am looking for ways to
build a proper driver.
On Monday, June 20, 2016 at 4:59:56 PM UTC-4, SWISSNIXIE - Jonathan F.
wrote:
>
> Do u mean these?
> http://t
Hi Yall,
Just by looking, I fell in love with the so called "alien" EL display
tubes. Absolutely beautiful tubes! Any one here selling IEL-0-IV or
IEL-0-VI (especially)? I am willing to put some big money to collect a set
of those. Yall have a good day!
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Hey guys, if you remember I was asking questions about IV-17 tubes filament
voltage problem. Though there is still some contrast problem, the project
is finished. Just want to share this cool baby with you guys!
https://www.youtube.com/watch?v=YaUscYTW8Vs
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ing a center-tapped transformer has its good sides.
>
> /Martin
>
> On Saturday, 14 November 2015 03:30:41 UTC+1, Chaos Hydra wrote:
>>
>> I made a clean cut on the trace and patched in a 10VAC transformer. That
>> solved the overheating filament problem and now
The Grid and Anode runs on 24VDC. Datasheet nominal is 25VDC, works well
though. I will try your suggestion but maybe later, thanks.
On Saturday, November 14, 2015 at 1:10:37 AM UTC-5, gregebert wrote:
>
> Good progress!
>
> Actually, the change @nixiebunny recommended is probably simpler than y
schematics that I have looked at have tied
> all of the heaters in parallel, there have only been very few designs which
> have used four VFDs or less which have put them in series and they have
> then said that they don't care about the luminance difference as they have
> used a
Hello guys, I made an IV -17 display panel. I made the filaments five in
series and put them under 12VDC to get a 2.4VDC filament voltage.
The problem is, there is a voltage difference between each tube's filament
as the one closer to ground goes up to 3.2VDC and the one close to 12V gets
to 1.6
If you have a ebay link, please send it to me. I want iv-4 and iv-17.
On Thursday, September 10, 2015 at 12:39:43 AM UTC-4, Yuriy Ovchinnikov
wrote:
>
> FS:
> IV-4 - 11 pcs.,
> IV-12 - 73 pcs.,
> IV-17 - 13 pcs.,
> IV-26 - more 800 pcs.
> Anyone want?
>
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ss by a huge
> amount, even from the same batch.
>
>
> On Thursday, July 23, 2015 at 7:38:26 AM UTC-7, Chaos Hydra wrote:
>>
>> Well, as a newb, I do not how to do AC filament drive so I settled for
>> DC. Since I will use tube play later on, Would you mind show me
ly 23, 2015 at 10:38:26 AM UTC-4, Chaos Hydra wrote:
>>
>> Well, as a newb, I do not how to do AC filament drive so I settled for
>> DC. Since I will use tube play later on, Would you mind show me some good
>> resourse explain how to do it? Ｉ appreciate any help!
>&
uly 22, 2015 at 2:12:43 PM UTC-4, Chaos Hydra wrote:
>>
>> I see what you mean now. Still, I managed to find a regulator chip that
>> can do the trick, because it take 5V input.
>> http://www.linear.com/product/LT1587-1.5
>> Thanks a lot!
>>
>
> If poss
8) ohm resistor, like 2
> point 7 ohms. Yellow Violet Gold.
>
> On Tuesday, July 21, 2015 at 6:05:22 AM UTC-7, Chaos Hydra wrote:
>>
>> Thanks for your reply! Yeah I mean pin 12 to 25 VDC, mis-type.
>>
>> So for the first part. I will have 8 tubes. So I put 47 ohm
As the topic says, what do you guys do for the 1.5v for the anode voltage.
an AA battery? I was thinking to use two bias resistor and get it from my
5VDC logic circuit input. Are there any better options to do this?
Also, just double check my Russian, Pin 1 goes to 1.5V and pin 11 goes to
groun
, June 20, 2015 at 4:40:33 AM UTC-4, Terry Kennedy wrote:
>
> On Friday, June 19, 2015 at 2:59:40 PM UTC-4, Chaos Hydra wrote:
>>
>> The all powerful group, I invoke thee! Well guys, I have only been
>> shopping tubes from ebay before, but for my new project I am thinking just
leared it with the guy), but if you are really serious
> about getting a large quantity (500+), then contact me privately and I'll
> try to put you two together.
>
>
> On Friday, 19 June 2015 20:59:40 UTC+2, Chaos Hydra wrote:
>>
>> The all powerful group, I invok
The all powerful group, I invoke thee! Well guys, I have only been shopping
tubes from ebay before, but for my new project I am thinking just shop from
one place and be done with it while saving the shipping. So since yall are
more experienced, how good are the other tube sites out there? Curren
IN-12a and IN-12b both have upside down 2 and 5s, the only difference is
the digit dots on them. They are Russians, aimed for efficiency, so no.
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That totally worked! but I did the wiring when the 170v is on, and got
zapped, threw my only 220k ohm to nowhere. DAW
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OK, I tried the method mentioned by Threeneurons. It does not seems be
working. I tried to put a 1n4001 diode in series to limit the current,
seems not working either. Have anybody have done this procedure before?
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Thanks! trying it right now!
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Thanks John! That is very helpful!
So to avoid unwanted lit, what should I do? Can I just put a diode there
to prevent the chip sourcing the bulb?
On Saturday, April 18, 2015 at 10:13:40 AM UTC-4, jrehwin wrote:
>
>
> On Apr 18, 2015, at 4:06 AM, Chaos Hydra >
> wrote:
>
Thanks John! That is very helpful!
So to avoid unwanted lit, what should I do? Can I just put a diode there
to prevent the chip sourcing the bulb?
On Saturday, April 18, 2015 at 10:13:40 AM UTC-4, jrehwin wrote:
>
>
> On Apr 18, 2015, at 4:06 AM, Chaos Hydra >
> wrote:
>
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