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  1. #1
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    Looking for older LED's or Solid State Lamps

    I've been scrounging together some older LED's recently and find their history pretty interesting. I'm searching for some from the very very early days (1967-71) of LED's or Solid State Lamps as they called them back then.
    I'm hoping there's a few people out there who's held on to some of these early emitters because they thought they were pretty cool even though they are primitive by today's standards.
    My plan is to eventually make a history of LED's website to share the stories and some quality photos of the devices.
    Anyone have some metal-canned LED's? The early ones were often in modified transistor cans (TO-29) and often came in a fancy plastic case:
    Click image for larger version. 

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    Click image for larger version. 

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    Monsanto's early LED's
    Click image for larger version. 

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    If you can help it'd be greatly appreciated!

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  2. #2
    Junior Member level 1
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    Re: Looking for older LED's or Solid State Lamps

    i have some IR emitters that look like one of your pictures. They are marked TIL31B. I can be reached @ autoivins@sunrivertoday.com



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