Potential. 

Jeff
-------- Original message --------From: Instrument Resources of America 
<iracosa...@hughes.net> Date: 4/13/18  4:54 PM  (GMT-06:00) To: 
"'jf...@my-deja.com' via neonixie-l" <neonixie-l@googlegroups.com> Subject: Re: 
[neonixie-l] Re: Possibly offtopic - Vintage MV1 LEDs for sale 

    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 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  efficiency".  According to
          https://www.ele.uva.es/~pedro/optoele/LEDs/Bright_LEDs.pdf ,
          before 1973 the efficiency was  under 1% or under 0.2%,
          depending on the chemistry.

        
      
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