Re: [neonixie-l] Re: Some guy offering Rodan CD47 tubes

2017-02-23 Thread Paul Andrews
http://www.thingiverse.com/thing:880429 On Thursday, February 23, 2017 at 7:25:10 PM UTC-5, I wrote: > > That sounds really very cool. Any size, within reason that anyone would > want, and much less expensive than Rodan CD47's. Engrave your own, if > you're good at that sort of thing, or have

Re: [neonixie-l] Re: Some guy offering Rodan CD47 tubes

2017-02-23 Thread Instrument Resources of America
That sounds really very cool. Any size, within reason that anyone would want, and much less expensive than Rodan CD47's. Engrave your own, if you're good at that sort of thing, or have it done somewhere. Multi colored LED's would also be cool. And just to make sure that the clock contained

Re: [neonixie-l] Re: Some guy offering Rodan CD47 tubes

2017-02-23 Thread gregebert
On Thursday, February 23, 2017 at 3:20:46 PM UTC-8, NeonJohn wrote: > > You could use the modern version of the old edge-lit displays. A stack > I pondered that awhile back, but I remember my first-ever digital clock I built used those same displays (along with stepper relays,

Re: [neonixie-l] Re: Some guy offering Rodan CD47 tubes

2017-02-23 Thread NeonJohn
You could use the modern version of the old edge-lit displays. A stack of plex sheets engraved with the numbers and edge-lit with LEDs. That would be even more authentic because the numbers would approach and recede as they change values, just like in a real Nixie. John On 02/23/2017 05:10

[neonixie-l] Re: Some guy offering Rodan CD47 tubes

2017-02-23 Thread gregebert
One of the (many) projects in the back of my head is a 'beer bottle nixie tube', basically cutting-off the top of a brown beer bottle and inserting a PC board with orange LED's arranged like nixie numerals. The tinted glass would obscure most of the PC board, and blur the LEDs so it would have

Re: [neonixie-l] Re: Some guy offering Rodan CD47 tubes

2017-02-23 Thread Dan Hollis
i buy and build nixies because they make nice looking clocks. i don't buy them for historical or collectors value and don't care at all about that aspect. i'd buy rodan-size dalibor tubes no problem. -Dan On Thu, 23 Feb 2017, Instrument Resources of America wrote: Even if Dalibor can and

[neonixie-l] Re: Some guy offering Rodan CD47 tubes

2017-02-23 Thread Greg P
I'd love to see Dalibor release something that large but pretty. The CD47 is butt ugly. It's like it was a 30mm tube stretched out and poorly proportioned. $2000-2500 per tube is just insanity, doubt the seller will have many takers. Let's go Dalibor flood the market with something better

Re: [neonixie-l] Re: Some guy offering Rodan CD47 tubes

2017-02-23 Thread Dan Hollis
I'd love to see dalibor make a rodan-size (or larger!) nixie. I'd pay for those. -Dan On Thu, 23 Feb 2017, Luka C wrote: I pretty much enjoy "collecting" different types of Nixie tubes and sometimes spend like 100$ or 150$ per tube, but paying ~2500 euros for a Nixie tube is just ridiculous

[neonixie-l] Re: HV control chips

2017-02-23 Thread gregebert
I quick-glanced the HV5812 datasheet, and it's a push-pull driver, meaning that it drives-out approx 0 volts to turn the tube on, and 80V to turn the tube off. Even though the anode supply is significantly higher than the 80V rating of the HV5812 device, it's OK to do this because any leakage

[neonixie-l] Re: Some guy offering Rodan CD47 tubes

2017-02-23 Thread 'kitehman' via neonixie-l
you can treat nixie buying fever similar to cathode poisoning, just hook up your power supply to your wallet and crank i up to 10ma@180v On Thursday, February 23, 2017 at 9:11:04 AM UTC-9, newxito wrote: > > I’m aware that I’m infected with the nixie fever since last year, I’m > having

Re: [neonixie-l] Re: Some guy offering Rodan CD47 tubes

2017-02-23 Thread Instrument Resources of America
Even if Dalibor can and would make IDENTICAL tubes, (and I'm quite sure that with his skills he could), they would NOT carry the same historical, or collector value as these originals. Ira. On 2/23/2017 8:20 AM, Trumpeter wrote: I am a proponent of the free market and one should sell

[neonixie-l] Re: HV control chips

2017-02-23 Thread gregebert
That's the driver topology I use, except I omit the zener diode (good idea, though, for NMOS) and the base resistor because I dont see a hazard without them. If there is a power-on transient that occurs when the HV supply is energized (very unlikely, because the HV DC filter cap would need to

Re: [neonixie-l] Re: Some guy offering Rodan CD47 tubes

2017-02-23 Thread Luka C
I don't know how you found that item on eBay, but that appears to be the only nixie tube "seller" from my country that I have ever seen. Actually, he lives like 20 minutes by car away...shame he doesn't have any "more interesting" tubes in stock, these +/- (at least that's what they look like)

[neonixie-l] Re: Some guy offering Rodan CD47 tubes

2017-02-23 Thread Trumpeter
I am a proponent of the free market and one should sell something for whatever someone else is willing to pay. That said, I am doubtful he will get over $2000 for these tubes, not with fellows like Dalibor making them in new production. $50 for an IN18 is one thing but $2000 for one tube is

[neonixie-l] Re: Some guy offering Rodan CD47 tubes

2017-02-23 Thread Paul Andrews
I am curious where he got them and how much he paid. I'm not suggesting that anyone could do an end-run around him, it would just be interesting to know. On Wednesday, February 22, 2017 at 7:42:02 AM UTC-5, Ian Sparkes wrote: > > There's some guy called Andre offering a number of CD47 tubes

Re: [neonixie-l] Re: Some guy offering Rodan CD47 tubes

2017-02-23 Thread Nicholas Stock
Speaking off odd/rare nixies http://www.ebay.com/itm/2-x-Siemens-ZM-1043-Special-Symbol-Nixie-Rohre-Tube-Tested-NOS-Clock-Rare-/122368750757?&_trksid=p2056016.l4276 I haven't seen this type before On Thu, Feb 23, 2017 at 7:20 AM, Nicholas Stock wrote: > I concur

Re: [neonixie-l] Re: Some guy offering Rodan CD47 tubes

2017-02-23 Thread Nicholas Stock
I concur Luka. However, there will always be someone who wants to collect rare things at any cost, so best of luck to him/her, I'm sure they'll find a buyer somewhere...personally, I think nixies should be used for what they were intended, not stored away in a drawer etc...but that's just my

[neonixie-l] Re: Some guy offering Rodan CD47 tubes

2017-02-23 Thread Luka C
I pretty much enjoy "collecting" different types of Nixie tubes and sometimes spend like 100$ or 150$ per tube, but paying ~2500 euros for a Nixie tube is just ridiculous in my honest opinion. I mean, if such amount is something you earn easily and you really feel like you "just have to have

[neonixie-l] Re: Some guy offering Rodan CD47 tubes

2017-02-23 Thread ten kowal
I've got an answer from him. When asked for price for 4 tubes, he answered with 10 000 EUR. Well, he really does know how rare and valuable they are. W dniu środa, 22 lutego 2017 13:42:02 UTC+1 użytkownik Ian Sparkes napisał: > > There's some guy called Andre offering a number of CD47 tubes

Re: [neonixie-l] Re: Wanted: best few photos of Nixies in military equipment

2017-02-23 Thread JohnK
Thanks Dave, it is in the ball-park, John k - Original Message - From: Dave Brown To: neonixie-l@googlegroups.com Sent: Thursday, February 23, 2017 6:31 AM Subject: RE: [neonixie-l] Re: Wanted: best few photos of Nixies in military equipment John May not be exactly