It is indeed old. Another source of ECL (ECL10K) was
RP04/5/6 disks that are definately over 10 years old
and I have a bunch of 10113, 10120, 10125 and the
venerable 11c90 and 95h90 divide by 10 ECL
counters from the early 70s (spares for my yasu 355
350mhz frequency counter).
The common voltage used was -5.2 though there were
-3.2 and +2 and the other was -2 and +3.2 so the
transistion voltages were near or around 0V.
If memory serves the infamous Cray YMP was
majorly ECL for speed.
Allison
I have a VAX 4000/200 in a very unusual rack mount BA400 series cabinet.
The drives point out the front and the cards mount in the back. I do not
have the 'slides' for this chassis. I would be willing to trade it for
KA694 (VAX 4000/705A) CPU module. The 4000/200 includes a TK70 and a RF72
disk I believe. It takes BA400 type disk/tape cards. It has 32MB of RAM and
a CXY08 async mux card. I'll pay to ship it to you on a pallet if you live
near one of Forward Air's terminals.
Yes, I know KA694s are sold by resellers for a lot of money, and no I don't
hold out a lot of hope that someone will be interested in trading one
single card for a complete system, however I had to ask. The alternative is
to start selling VAXen on Ebay until I've made enough to pay for a 694. :-)
[The astute will wonder how many VAXen that will take, I don't know but we
just might find out...]
--Chuck
I've recently come into a cache of National Semiconductor 32000 series ICs
that I would be willing to part with for someone who is repairing something
vintage that uses them. Contact me with what you can use and what you will
use it for. The part #s are:
ns32301
ns32302
ns32303
ns32081
ns16032
ns32008
ns16082
ns32082
ns32332
ns32382
BTW: If anyone has any ns32000 stuff they want to get rid of, I'd like to
hear about it. Especially 32532 CPUs and 32381 FPUs.
Ken Seefried, CISSP
http://www.semtech.com/pdf/ate/ecl_dc_specs.pdf
Its rather new High speed low noise logic.
Sincerely Larry Truthan
truthanl(a)oclc.org classiccmp-digest subscriber faster to respond
directly to email.
The Osborne 1 also used TTL-level signals for its video.
-----Original Message-----
From: Jeff Hellige [mailto:jhellige@earthlink.net]
Sent: Thursday, May 10, 2001 3:36 PM
To: classiccmp(a)classiccmp.org
Subject: Re: Converting TTL monitor to Analog
<snip>
Looking at to references I have here, I see two monitors
right off the bat that take a TTL signal as input: both the Tandy
CM-1 and VM-1 monitors, not to mention the current crop of DVI LCD's
out there.
Jeff
--
Collector of Classic Microcomputers and Video Game Systems:
Home of the TRS-80 Model 2000 FAQ File
http://www.geocities.com/siliconvalley/lakes/6757
What?
ECL is one of the oldest logic families with ECL 1000 dating
back to the 60s! I know I still have some of the old moto
ECL parts. The VAX9000 (over 10 years old) was built with
ECL 100k. Ove the years the threshold levels have changed
some but the basic logic has been the same save for the really big thing... it's still one of the fastest.
Allison
------Original Message------
From: "Truthan,Larry" <truthanl(a)oclc.org>
To: "'pechter(a)bg-tc-ppp1580.monmouth.com'" <pechter(a)bg-tc-ppp1580.monmouth.com>
Sent: May 10, 2001 1:12:38 PM GMT
Subject: ECL Logic - not ten yeas old?
http://www.semtech.com/pdf/ate/ecl_dc_specs.pdf
Its rather new High speed low noise logic.
Sincerely Larry Truthan
truthanl(a)oclc.org classiccmp-digest subscriber faster to respond
directly to email.
I just saw this article about computer recycling it talks about the options,
seems mainly to concern PC's. Nothing about collecting or reusing, more like
grind-them-up.
http://news.cnet.com/news/0-1006-201-5787986-0.html?tag=tp_pr
Mike
mmcfadden(a)cmh.edu
Tom Owad wrote:
>
> >No manuals, remember this is an IBM mini/mainframe system.
>
> That's why manuals would be so helpful. :-)
>
> >You'll need the OS and what not. I'll drag it over in the morning.
>
> Ok. Thanks. Let me know when might suit you for pick-up.
Sorry for all the delay but someone picked up the system before I could
get to it. I'm sorry to have gotten hopes up. I did try to move it the
day before it disappeared but it is very heavy. If it's anything like
it cousin, the AS/400, then it probably had battery backup built in.
--
Linux Home Automation Neil Cherry ncherry(a)home.net
http://members.home.net/ncherry (Text only)
http://meltingpot.fortunecity.com/lightsey/52 (Graphics)
http://linuxha.sourceforge.net/ (SourceForge)
