Obsolete chips

[zeitghost]

Just found an IM6100IPL.

Turns out to be some long obsolete thingie that talks PDP8 assembly.

Now looking for the fish.

[xoggoth]

Bound to be a use for it. Using 2 PDP11/44 (or is it 11/7 ?) fans wired in series, as are 110V, to cool my office. Got a box of em. A REAL MAN never throws anything away.

[Doggy Styles]

PDP-8 - Wikipedia, the free encyclopedia

Was CMOS that +1.6 -0.8 stuff that blew if you touched them?

Or is that another Caernarvon Castle?

[Doggy Styles]

I think you're in north Wales again on that one.

0 & 5V.

Maybe you're thinking of ECL. Or something else exotic.

Ah, that's it, ECL. Boyo.

It's all a bit misty more than 20 years later.

[Doggy Styles]

I've never seen an ECL chip.

There were some where I worked but they never caught on. I most remember them because a fellow junior engineer used to call them DCL, which caused some consternation. He also drove a three-wheel car until he rolled it.

[SupremeSpod]

Back in the day of TTL, they were much faster (and even hotter).

Not much different to CMOS these days as to speed.

I recently fixed a ZX80 for one of the chaps at Clientco. I couldn't resist checking out all the different 74nxxx chips on t'interweb.

[Doggy Styles]

I recently fixed a ZX80 for one of the chaps at Clientco. I couldn't resist checking out all the different 74nxxx chips on t'interweb.

Them was the days. You could build anything with an infinite supply of 7400s.

[SupremeSpod]

Them was the days. You could build anything with an infinite supply of 7400s and could afford to power/cool it.

ftfy

Here's someone who did...

http://www.homebrewcpu.com/

[SupremeSpod]

Just found an IM6100IPL.

Turns out to be some long obsolete thingie that talks PDP8 assembly.

Now looking for the fish.

SBC6120

[doodab]

ftfy

Here's someone who did...

Homebrew CPU Home Page

Here is someone who did it with ECL:

Seymour Cray - Wikipedia, the free encyclopedia

I built an adder out of 7400 once. You'd be mad to attempt a whole processor.