Re: [neonixie-l] Re: Crowdfunding for vacuum tubes/nixie/neon/scientific glassblowing workshop

2016-04-08 Thread Charles MacDonald
On 16-04-08 04:05 AM, Nick wrote: Hi Lukas, I like the idea, but I've tried hot glass work, and it's really tricky to do well As you probably know, at least one other member is doing exactly this type of work, Dalibor Farny - http://www.daliborfarny.com/ - and its taken him years of hard graft t

Re: [neonixie-l] Re: Crowdfunding for vacuum tubes/nixie/neon/scientific glassblowing workshop

2016-04-08 Thread Lukas Niebieszczanski
Thanks mate I really appreciate it, albeit I think this time it will just be a taster. I need to gather opinions of how people would see it, what would be the expectations and demands. And finally I need to present some prototypes as this is obviously crucial. I assume all this would go in two mont

Re: [neonixie-l] Re: Crowdfunding for vacuum tubes/nixie/neon/scientific glassblowing workshop

2016-04-08 Thread Dalibor
Hi Lukas, good luck, I will place an order for 4 big tubes to support the project, regards! Dalibor Dne pátek 8. dubna 2016 21:46:23 UTC+2 Lukas Niebieszczanski napsal(a): > > Dear Dalibor, > > Thanks for your insights. > I managed to gather ca. 4T of simax glass tubes, some other glass > mat

Re: [neonixie-l] Re: Crowdfunding for vacuum tubes/nixie/neon/scientific glassblowing workshop

2016-04-08 Thread jb-electronics
Hey Lukas, So why not share some of your accomplishments? Do you have some pictures? I for one would be interested. Jens On 4/8/2016 3:43 PM, Lukas Niebieszczanski wrote: Hi Jens, Thanks for your message. Please believe me that I am aware of all of that. I also know what responsibility a

Re: [neonixie-l] Re: Crowdfunding for vacuum tubes/nixie/neon/scientific glassblowing workshop

2016-04-08 Thread Lukas Niebieszczanski
Dear Dalibor, Thanks for your insights. I managed to gather ca. 4T of simax glass tubes, some other glass materials, wires, tools etc. This project is not funded from ground zero. I am assuming the project is at 85%. I was hoping to get funds for the remainder. I will you all the best. Lukas On

Re: [neonixie-l] Re: Crowdfunding for vacuum tubes/nixie/neon/scientific glassblowing workshop

2016-04-08 Thread Lukas Niebieszczanski
Hi Jens, Thanks for your message. Please believe me that I am aware of all of that. I also know what responsibility and risk that project brings upon me. If I spend the funds on that lathe and something goes wrong I must then return the funds, I've made certain arrangements for that. I used to man

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

2016-04-08 Thread David Forbes
I use the Toshiba TD62083AFN in my Nixie watch as a cathode driver. It sees 50V between pins on the 0.65mm TSSOP. I take extra care to keep the anode traces well separated from all the cathode and logic traces on the PC board. I use .010" (.25mm) trace spacing between cathodes, and .020" (0.5mm)

[neonixie-l] Re: Nixie Tube Schematic Review

2016-04-08 Thread gregebert
If you are driving nixie tubes, there actually isn't 300V between pins at the driver IC. If your supply is 200V, and the typical voltage drop of an IN-18 is about 140V when illuminated, the actual voltage-difference between pins is about 60V. That calculates to 0.6mm of spacing, which is still a

Re: [neonixie-l] Re: Crowdfunding for vacuum tubes/nixie/neon/scientific glassblowing workshop

2016-04-08 Thread jb-electronics
Hey Lukas, You mention "many additional processes than just bending filaments and pumping Ne to nixies". Just doing that took Dalibor Farny (the only man to ever do this in a professional manner in history, I might add) more than three years. So do not underestimate that -- I am not saying you

Re: [neonixie-l] Re: Crowdfunding for vacuum tubes/nixie/neon/scientific glassblowing workshop

2016-04-08 Thread Dalibor
Hi Lukas, In any case, I don't want to discourage you from building a vacuum tube workshop, I just want to contribute with some insider information. I am little bit afraid that you promise to your backers something that is not possible to fulfil. My first concern is the price of 20 pounds per

[neonixie-l] Re: Nixie Tube Schematic Review

2016-04-08 Thread Jonathan F.
About this calculator for insulation... if i type in 300V, i get 2.5mm for external layers. So how is it possible for Microchip to sell a 315V rated IC in a PQFP44 case? The pins on a QFP have 0.5mm pitch! Am Mittwoch, 6. April 2016 20:23:38 UTC+2 schrieb gregebert: > > Looks like you have

Re: [neonixie-l] Re: Crowdfunding for vacuum tubes/nixie/neon/scientific glassblowing workshop

2016-04-08 Thread Lukas Niebieszczanski
Hello Nick, Thank you so much for all insights. That's exactly what I need, reviews and sharing different POVs. This is my first campaign that kinda is moving on. I realise that it would not be successful at this time, but I gather necessary experience and will try again (I give myself three go's)

Re: [neonixie-l] Argon lamp

2016-04-08 Thread John Rehwinkel
> I just bought a little argon light bulb on ebay, out of curiosity. Ah, not an argon discharge bulb, but an argon gas fill incandescent. > > Made by Condor, it's 110 volts, 25 watt. Can I safely fire this up on 230 > volts with a dropper resistor? Yes, it's actually easier on the bulb than ho

Re: [neonixie-l] Crowdfunding for vacuum tubes/nixie/neon/scientific glassblowing workshop

2016-04-08 Thread Dan Hollis
Have you seen the work of dalibor farny? http://www.daliborfarny.com/ -Dan On Thu, 7 Apr 2016, Lukas Niebieszczanski wrote: Hello All, Thanks for adding me to this group. I would like to ask for sharing and perhaps chipping in to my crowdfunding project for opening glassblowing workshop. It

[neonixie-l] Re: Crowdfunding for vacuum tubes/nixie/neon/scientific glassblowing workshop

2016-04-08 Thread Nick
Hi Lukas, I like the idea, but I've tried hot glass work, and it's really tricky to do well - you don't say on the funding page what your experience or skills are like (other than you work in the NHS) - do you have any examples of your work? As you probably know, at least one other member is d