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Where can I buy one of these? LED in a TO-92 3-leg transistor package
Where can I buy one of these? LED in a TO-92 3-leg transistor package
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Old 3rd November 2017, 08:58 PM   #1
realflow100 is offline realflow100  United States
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Default Where can I buy one of these? LED in a TO-92 3-leg transistor package

Where can I buy one of these?
Motorola TO-92 Package LED - The Vintage Technology Association

Color doesn't matter. but I want to get some for a project
I also hear they are working transistors. so I was thinking I could use them in a simple calculator so you could see all the transistors turning on and off without having a separate LED and resistor in parallel to the transistors?

That would be really cool.
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Old 3rd November 2017, 09:43 PM   #2
kevinkr is offline kevinkr  United States
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Where can I buy one of these? LED in a TO-92 3-leg transistor package
I have heard they were only an LED in a translucent TO-92 case and were made about 40 years ago. Your odds of finding any are very slim.
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Old 3rd November 2017, 10:44 PM   #3
Max Headroom is offline Max Headroom  Australia
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Vintage Technology Association

Dan.
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Old 3rd November 2017, 10:53 PM   #4
MAAC0 is offline MAAC0  Portugal
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Don't You have a broken mouse lying around ?
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Old 4th November 2017, 10:27 PM   #5
realflow100 is offline realflow100  United States
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Nope I dont have a broken mouse lying around. Sorry.
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Old 5th November 2017, 10:12 PM   #6
MAAC0 is offline MAAC0  Portugal
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Some older mices used red leds. I presume the new ones use infrared. You'll find them on computer junk-yards or recycle centers.
There are also Led-Phototransistor bridges...You can use the leds from them.


2x Finecorsa Ottico Interruttore ITR9608 - Opto Interrupter Led/Phototransistor | eBay
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Old 6th November 2017, 12:58 PM   #7
burbeck is offline burbeck  United Kingdom
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you could always ask fran to part with one see here
YouTube
start at time 31:22

i doubt she will part with more than1
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Last edited by burbeck; 6th November 2017 at 01:01 PM.
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Old 7th November 2017, 02:41 AM   #8
realflow100 is offline realflow100  United States
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Thats not exactly what I wanted. I dont want an invisible infrared one. or one of those kind for mice. thats not really what I wanted.
I dont want just simply a red LED
I want that 3-legged transistor looking LED in specifically the TO-92 package

and i already watched that exact youtube video and I dont have a deliverable address that i'm willing to give out. I was looking to see if a site like amazon or ebay had some of these to sell. or even just a single one is fine as long as it works
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Old 7th November 2017, 04:26 AM   #9
JMFahey is online now JMFahey  Argentina
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Quote:
Originally Posted by realflow100 View Post
Not where but when: 30/40 years ago.
In fact the very first LEDs I bought were like these.
Quote:
I also hear they are working transistors. so I was thinking I could use them in a simple calculator so you could see all the transistors turning on and off without having a separate LED and resistor in parallel to the transistors?
No they are not.
Just plain LEDs.
And even if they were LETs (Light Emitting Transistors) it would be useless looking at them because they would be switching at many kHz .
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Old 7th November 2017, 04:37 AM   #10
tomchr is offline tomchr  Canada
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HSC might know where you can get TO-92 LEDs: HSC Electronic Supply - Silicon Valley's Electronic Marketplace

Tom
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