[neonixie-l] Re: Help required on nixie power supply

2016-07-13 Thread ZY
Oops I meant 0.1nF for the capacitor across the 1.5M resistor, although I'm assuming 0.1uF would still be ok? -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to

[neonixie-l] Re: Help required on nixie power supply

2016-07-13 Thread ZY
It seems like that is the issue. I can't find a suitable capacitor at the moment as the 0.1uF ones I have extra right now are rated at 50V, but using my multimeter to probe across the 1.5M cap causes enough parasitic capacitance to allow for a stable voltage output. I will order a similarly

[neonixie-l] Help required on nixie power supply

2016-07-13 Thread ZY
Hello. I'm following desmith's guide to building a power supply, and I'm using a circuit somewhat similar to his except I've selected some different components due to some size constraints. The main difference is my mosfet is this guy:

Re: [neonixie-l] Nixie Tube Calculator Clock w/Android Control

2016-07-13 Thread Eric Cohen
Hi Paolo, thanks for the great feedback! What type of calculator do you have? Regardless you might want to look at the PDF slides on my website as I have more details about how the display bus works; it might be helpful even for other types of calculators. To your point, I'd estimate I spent

Re: [neonixie-l] IN-18 Typical Failure Mechanism

2016-07-13 Thread Jeff Walton
John,  The envelope had already been cut open when the photo was taken.   You might note the powder from the glass cutting in the evacuation stem...  Original message From: John Rehwinkel Date: 7/13/2016 3:01 PM (GMT-06:00) To:

Re: [neonixie-l] IN-18 Typical Failure Mechanism

2016-07-13 Thread John Rehwinkel
Even on that picture, pin 12 looks suspect, as if the glass around the pin is cracked. - John -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to

[neonixie-l] Re: Question about LM4871 application for VFD fiament.

2016-07-13 Thread 'threeneurons' via neonixie-l
How about an old LM1877 stereo audio amp: Comes in a 14-pin DIP. Can deliver several 100's mA of current. And don't take the supply voltage as "Gospel". In can vary a bit, both up and down. On Tuesday, July 12, 2016 at 8:23:19

Re: [neonixie-l] Nixie Tube Calculator Clock w/Android Control

2016-07-13 Thread Paolo Cravero
Eric that's an excellent work and very inspiring. I wonder how much time you spent on it! I have a desk calculator with VFD to repurpose as a clock. I will keep your result in mind when I will be reverse engineering the circuit, in case I can hook it up in a similar way you did. Not knowing how

Re: [neonixie-l] Nixie Tube Calculator Clock w/Android Control

2016-07-13 Thread Eric Cohen
Hi Russell, thanks for the kind words! Not sure what your background is but you might try starting with a Nixie clock kit. Just the act of following directions, assembling the kit and getting it to work will get you pretty far. If you don't feel confident taking that on you can start with

[neonixie-l] Re: First Clock Build

2016-07-13 Thread Roddy Scott
Great looking design! Very elegant and modern looking. My two favourite materials - Brass and Wood. > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to

[neonixie-l] Re: Question about LM4871 application for VFD fiament.

2016-07-13 Thread Chaos Hydra
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

[neonixie-l] Re: Question about LM4871 application for VFD fiament.

2016-07-13 Thread petehand
The LM4871 wouldn't be my choice for a filament driver. I use the Si9986, which is an H bridge, with my VFD projects. http://www.alliedelec.com/siliconix-vishay-si9986cy-e3/70026303/ -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To

[neonixie-l] Re: Nixie Clocks

2016-07-13 Thread Roddy Scott
I forgot to add thanks to a couple of people who helped out with issues and support, Firstly Pete Virica of PV Electronics whose kits I use along with his excellent customer service, and secondly, Paul Parry of Bad Dog Designs

[neonixie-l] Nixie Clocks

2016-07-13 Thread Roddy Scott
Hi Folks and thanks for inclusion into the group! I got started with Nixie tubes when I built a large Steam Punk lamp for my daughter's birthday last year and it looked kind of lacking in the middle, that is when I discovered nixie tubes. I added a little IN-12A kit to it and I have been