I have a few oddball items I'd be happy to trade away for things I could
use. I can email pictures of any of these.
PDP 11/04 Front Panel
Vector 4607 protoboards (3 each), PDP 11 style edge connectors
SWTPC Ascii Keyboard (no case) early version with diodes for encoding
LCD Panel (Sharp LQ12S56) and Keyboard from Dell Latitude CP series
And free for postage, PCB from an Exidy Starfire game (eproms are gone).
I'm interested in S100 stuff, a Decmate I Keyboard, Nixie and Vacuum tubes
etc.
- Gary <gkaufman at the-planet.org>
>Joe r. or anybody interested in picking these up in Melbourne fl, please
>contact thom at 321-537-2384. They are in reasonable condition, no 8018
>regulators installed.
>
I'm needing transformer, fans, and power entry module for a chassis I have
that does have the regulator. If anybody is willing to ship a chassis
or parts to MD for a reasonable handling I would appreciate it. I could
also trade for it a G8018 in unknown condition.
>I am not home right now - going thru a pile of stuff I have stored
>elsewhere - and came across some logic I am not familiar with. MC5xx from
>Motorola ring a bell?
>
Military temperature range of the MTTL I 4xx series logic. Seems to be
5V TTL but I only have a device selector tables, not full datasheets.
Joe r. or anybody interested in picking these up in Melbourne fl, please
contact thom at 321-537-2384. They are in reasonable condition, no 8018
regulators installed.
Do you have the actual Memorex 651 drive (not the floppy disks)? I'm
looking to buy one.
Thanks,
Bob Sheldrick
Trident Computer Corporation
277 Park Drive
Troy MI 48083 USA
Tel # 248-585-8100
Tony Duell wrote:
So (to get it on-topic for classiccmp), people with machines that only
support IDE drives are going to have problems in the future finding
working replacements (I doubt very much if any of us could repair any
reasonably-modern IDE drive, alas). I've seen adapters to use IDE drives
on SATA hosts, but not the reverse.
Oh well... Looks like designing an ST506 (host) to IDE (drive) interface
is not going to be a particularly useful thing. Better to work out a way
to keep the old ST506s/412s/etc working.
-tony
------------------------------------------------------
I'm lost in your logic here. ST506 and 412 have been obsolete for 15 years.
They will become harder and harder to find and keep working. If you are
trying to keep the old systems running, you will eventually have to do a
dongle of some sort with newer drives. Why not now?
Keeping the old drives working is going to require parts and technology that
don't exist commercially any more. You can still find the high volume
circuitry in the surplus stores. But it's the heads and platters that wear
out and ferrite heads and oxide media are gone. Occasional bits and pieces
show up less and less often. Why not put the energy into adapting the
latest drive technology? That buys you an extra decade or so.
IDE drives are going to be around in far greater volumes long after the last
ST506 is still working. I just had a report that last year was the biggest
year ever for hard drives: 376 million units, the huge majority IDE. That
gives a pool of drives to use that will outlast most of us on this list.
And there are already IDE to SATA dongles to stretch out another generation.
And there are the side issues to keeping the old systems going. How long
will we be able to find 8" and 5.25" media? Printer ribbons? Rubber parts
for teletypes and typewriters? When do you toss in the towel on trying to
keep the old systems going?
One of my other hobbies is amateur publishing. We used Gestener mimeograph
machines. The machines are easy to keep running. But I haven't been able
to buy any stencils in the last 5 years. A place in India made them until
around 2000. Now it's just the odd cache that shows up on eBay every 4-6
months. The ink we've tried to make ourselves with a little success. And
of course, the twiltone paper is long gone. Modern paper is too slick and
non-absorbent. When we get a mimeo going, it still looks like crap because
of the poor ink and paper.
So I wonder again, when do we give up on keeping the old machines running?
If my CDC 160-A memory goes, there's no more core memories. My Jetex
engines don't have fuel any more. My old typewriters have platens that turn
to powder if I try to type.
Some time, we have to let go and upgrade as much as it is unaesthetic or
displeasing. When?
Billy
All:
I'm having trouble locating someone (anyone) who has a bootable
5.25" single-density diskette suitable for my VersaFloppy controller. So, I
was wondering the following. What if I setup an old PC with a 5.25" drive
and use 22DISK to prepare a disk and move CP/M 2.2 .COM files to it from the
PeeCee. Then, I would have to figure out how to get the cold-start loader
onto the disk.
Does this sound like a viable scenario?
Rich
Rich Cini
Collector of classic computers
Lead engineer, Altair32 Emulator
Web site: <http://highgate.comm.sfu.ca/~rcini/classiccmp/>
http://highgate.comm.sfu.ca/~rcini/classiccmp/
Web site: http://www.altair32.com/
/***************************************************/
>So what is RoHs?
Short answer - it will be illegal and criminal to sell products containing
lead (and many other hazardous substances) in the EU after July 1. This, in
particular, means the traditional lead/tin solder.
Google for RoHS. You'll find plenty of matches.
Bob
