[sdiy] Logic in cans?

[James Patchell]

Yes, the HEP580->583 are RTL...in fact, I have some of those in my 
collection of parts....I used them back in the 60's to build a 4 bit, 
up-down counter when I was in high school...everybody thought that was 
absolutely amazing...back then...I have long since lost the data sheets, 
but then again, I don't really consider them to be particularly useful any 
longer.....and they were expensive back then....each part cost a whole 
dollar...(or maybe a bit more)...which by even todays standards, is pretty 
expensive.

At 02:20 AM 12/3/2005 -0500, Aaron Lanterman wrote:

>So, I'm sorting through a bunch of IC's in can's there's some CA3018 
>transistor arrays - and some other stuff that appear to be amplifiers of 
>various sorts, and then there's a HEP580 and a HEP583, which are claimed 
>to be (according to datasheet arcchive), 2 input nor and a single j-k flip 
>flop, respective.
>
>Whoa. I've never seen logic in cans before... apparently it's RTL 
>(resistor-transistor-logic).
>
>- Aaron
>
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>
>Dr. Aaron Lanterman, Asst. Prof.       Voice:  404-385-2548
>School of Electrical and Comp. Eng.    Fax:    404-894-8363
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         -Jim
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