[neonixie-l] Re: Nixie Tube Schematic Review

What parts do you intend to use for the power supply? If you want to save parts, use a 7805 regulator for the 5V, you don't need R1, R2,PC2 then. About Multiplexing, if you have a 1:6 Multiplex, then every tube is only one sixth of the time on, resulting in lower brightness. A IN-18 is specif

Re: [neonixie-l] Re: Electroluminescent displays (I-195)

My only experience with STL generation is with OpenSCAD; creating a model for the I-195 would be difficult because the shapes are so odd. On the other hand, making the model for a 7x9 matrix for NE-2 bulbs would be pretty simple and could be done in a few minutes. I'm going to wait until I get

[neonixie-l] Re: Fallout 4 DLC "Wasteland Workshop" will include "nixie tube lighting"!

Are you a fallout fan? I also wonder what they mean with "nixie tube lightning" Had an Idea when i first saw the power-armor and the gauss rifle, but i never finished it. I wanted to make a small 3-tube circuit that could be used for a "cosplay gauss rifle" or something. Am Dienstag, 29. Mär

Re: [neonixie-l] Re: Electroluminescent displays (I-195)

Ah, you're thinking of a printed mask when I was thinking printed light pipe diffusers... Both are possible :) Can you do the Cad to produce an STL file I could try and print? Otherwise I could have a go if you do some sort of drawing. Cheers, . Robin. > On 29 Mar 2016, at 23:44, gregebert wr

Re: [neonixie-l] Re: Nixie Tube Schematic Review

Yes, a saturated transistor behaves similar to a short-circuit, but in order to do so it must still be properly biased. The basic rule is: a bipolar transistor will conduct collector current when the base-emitter junction is forward-biased. For an NPN transistor, the base & collector both need

Re: [neonixie-l] Re: Nixie Tube Schematic Review

David and gregebert, Thanks for your replies, they were very helpful. It seems I have had a somewhat profound misunderstanding of the operation of transistors but I've spent the last few hours looking at the schematic David referenced as well as other articles and youtube videos and I'm beginnin

Re: [neonixie-l] Re: Nixie Tube Schematic Review

Sorry, I meant to say a PNP transistor with emitter tied to 180V rail. On 3/29/2016 3:23 PM, David Forbes wrote: Shep, There are two polarities of transistors, NPN and PNP. NPN requires the base to always be 0.6V more positive than the emitter, and PNP requires the base to be 0.6V more negativ

Re: [neonixie-l] Re: Electroluminescent displays (I-195)

I was thinking of a PCB with various green neon bulbs (there are other colors as well), and a driver that will get us AC on the bulbs (such as an HV507). On top of the PC board would be a 3D-printed gizmo (black, so it's opaque) that fit over the bulbs to create isolated light patterns for the

[neonixie-l] Re: Nixie Tube Schematic Review

Circuit-wise, the NPN's T1 thru T6 are emitter-followers. In order to turn them on, the base-emitter junction needs to be forward-biased, which is about +0.7 volts. So, if the base is driven to +5v (the max possible from the 74HC device), the max-possible voltage at the emitter will be 5.0-0.7 =

Re: [neonixie-l] Re: Nixie Tube Schematic Review

Shep, There are two polarities of transistors, NPN and PNP. NPN requires the base to always be 0.6V more positive than the emitter, and PNP requires the base to be 0.6V more negative than the emitter. The anode must be controlled from the 180V point, not from the 0V point. The most straight-

Re: [neonixie-l] Re: Electroluminescent displays (I-195)

On 29/03/2016 18:26, gregebert wrote: I'd be interested in teaming-up with someone who has a 3D printer to make 'fake' displays with green neon bulbs to emulate this particular E-L display. They would have very long lifetimes and have a similar color, not to mention, the large size. I have a 3D

[neonixie-l] Re: Nixie Tube Schematic Review

Hi gregebert! Thank you so much for your reply. I've taken a look at the datasheet for the HV5530 and it seems like it's a no brainer to use this instead of the transistors to simplify things so I will be taking some time to modify that. However, I do have a few follow up questions about some t

[neonixie-l] Re: Nixie Tube Schematic Review

Welcome to an addictive hobby! The anode-driver will need some rework because the NPNs (T1 thru T6) will only drive-out 4.3V (5v I/O from the ATMega, minus 0.7Vbe = 4.3V) as the circuit is shown. With multiplexing, you will need what's known as a 'high-side driver', and often that is done wit

[neonixie-l] Re: Polarity and current limiting resistor for INS-1 Nixie Lamps

Using Abbyy Finereader and Google Translate it says: -- electrode output 1 - output of small cylinder : anode 2 - output of large cylinder : cathode -- to the right of the symbol. /Martin -- You received this message because you are subscribed to the Google Groups "neonixi

[neonixie-l] Re: Polarity and current limiting resistor for INS-1 Nixie Lamps

I'm of the opinion that the dot marks the anode, not the cathode, like this drawing which is alleged to be for the INS-1:

[neonixie-l] Nixie Tube Schematic Review

Hello, this is my first post here in the NeoNixie group so I hope this is an acceptable thread topic. I'm excited to find other people interested in this sort of thing to get some feedback if anyone has it to offer. Attached is a preliminary schematic that I designed for my first go at a Ni

[neonixie-l] Fallout 4 DLC "Wasteland Workshop" will include "nixie tube lighting"!

I want it now! ;) I just hope they have made it look right and that they know what they are talking about. The Gauss rifle at least have good looking Nixies. /Martin -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group

[neonixie-l] Re: Electroluminescent displays (I-195)

Of course, small LED or OLED displays would be even better and you could match any display color or style.But that's blasphemy for neon enthusiasts. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop rece

[neonixie-l] Re: Electroluminescent displays (I-195)

Although the E-L display look neat, I've concluded it's not possible to showcase them in a clock that runs 24/7 because of the poor lifetime of ~500 hours from what I've researched. Assuming I get them running, it will be more of a museum-piece clock. I'd be interested in teaming-up with someon

[neonixie-l] Re: Electroluminescent displays (I-195)

Oh my! I must have some... Drol! On Monday, March 28, 2016 at 3:57:01 PM UTC-4, gregebert wrote: > > On a whim, I bought 4 E-L displays I saw on Ebay; According to the seller > they are Soviet I-195 units. > > Anybody happen to have a datasheet ? The seller posted enough info for me > to

[neonixie-l] Re: Early ZM1000 nixie failure

I have seen this once on a ZM1042 where the anode screen had come loose from the pin at the back, it might be the same with your tube. If you can get it back you could check it to see if the same has happened to it. /Martin On Saturday, 26 March 2016 08:29:14 UTC+1, franetic wrote: > > Hi all,

[neonixie-l] Re: Early ZM1000 nixie failure

@Gaston: I'll definitely ask the customer to observe if the tube in same position fails again. @Greg: Multiplexed or not, the usage parameters are within the ratings (as per data sheet) for 100.000 hour lifetime of the ZM1000 (particularly for the minutes position). Moreover, I've recently cont