Re: [neonixie-l] Re: Possibly offtopic - Vintage MV1 LEDs for sale

2018-04-13 Thread Instrument Resources of America
With that kind of terrible efficiency, and the horrendous cost, what exactly did engineers see in these things, at that time?? Ira. On 4/13/2018 8:44 AM, 'jf...@my-deja.com' via neonixie-l wrote: On Friday, April 13, 2018 at 8:27:35 AM UTC-7, Jens Boos wrote: Is there a datasheet for

Re: [neonixie-l] Re: Possibly offtopic - Vintage MV1 LEDs for sale

2018-04-13 Thread gregebert
I wonder if someday in the distant future, the google group "neoled" will be full of stories about 7-segment LED displays selling for hundreds of dollars each on Ebay.and even-more-expensive steampunk LED clocks. -- You received this message because you are subscribed to the Google Groups

Re: [neonixie-l] Re: Possibly offtopic - Vintage MV1 LEDs for sale

2018-04-13 Thread Jeff Walton
Potential.  Jeff Original message From: Instrument Resources of America Date: 4/13/18 4:54 PM (GMT-06:00) To: "'jf...@my-deja.com' via neonixie-l" Subject: Re: [neonixie-l] Re: Possibly offtopic - Vintage MV1 LEDs for

Re: [neonixie-l] Re: Possibly offtopic - Vintage MV1 LEDs for sale

2018-04-13 Thread Instrument Resources of America
"insanely expensive" YES! That is true of any and all new technologies that I can think of. It wasn't that long ago that small flat screen, hang on the wall, televisions were several thousands of dollars. Now they are available NIB for under three hundred bucks.  The really large sets keep

Re: [neonixie-l] Re: Possibly offtopic - Vintage MV1 LEDs for sale

2018-04-13 Thread jb-electronics
Is there a datasheet for this LED? I am really interested in the current draw. (The voltage is fixed, more or less, by the wavelength. So the current will tell us something about the efficiency.) Jens On 4/13/2018 9:06 AM, Instrument Resources of America wrote: "insanely expensive" YES! That

Re: [neonixie-l] Re: Possibly offtopic - Vintage MV1 LEDs for sale

2018-04-13 Thread 'jf...@my-deja.com' via neonixie-l
On Friday, April 13, 2018 at 8:27:35 AM UTC-7, Jens Boos wrote: > > Is there a datasheet for this LED? I am really interested in the current > draw. (The voltage is fixed, more or less, by the wavelength. So the > current will tell us something about the efficiency.) Jens > Google "GaAs LED

[neonixie-l] Re: Possibly offtopic - Vintage MV1 LEDs for sale

2018-04-13 Thread 'AnubisTTP' via neonixie-l
Yes, that $265 price is in 1969 dollars, the MV2 was insanely expensive when it was released. The MV2 was not really usable as an indicator though... it can only be seen in a darkened room. The only evidence I have ever found of them being used was in scientific experiments in the late 1960s.

Re: [neonixie-l] Electron Diffraction CRT

2018-04-13 Thread John Rehwinkel
> Here's an odd beauty > > https://www.ebay.co.uk/itm/Cathode-Ray-Tube-Electron-Diffraction-Tube/132570918496?hash=item1eddd7ae60:g:0TsAAOSwCBFavOGv > > I appears to be a demonstration of electron diffraction behaviour. If you > look inside the tube you can see a target in line with the

Re: [neonixie-l] Re: Possibly offtopic - Vintage MV1 LEDs for sale

2018-04-13 Thread Terry S
On Friday, April 13, 2018 at 10:06:20 AM UTC-5, I wrote: > > "insanely expensive" YES! That is true of any and all new technologies > that I can think of. It wasn't that long ago that small flat screen, hang > on the wall, televisions were several thousands of dollars. Now they are >

Re: [neonixie-l] Re: Possibly offtopic - Vintage MV1 LEDs for sale

2018-04-13 Thread Nick
On Friday, 13 April 2018 20:10:06 UTC+4, Terry S wrote: > > Yes and no. It's still possible to buy a really crappy LCD tv. I own one. :) Nick -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving