Are there any Wang people on this list?
I came across a Wang 2243, which is an enclosure w/ 3 8-inch floppy
drives in it for $75 in the local surplus shop.
Is there a demand for something like this whole or is the value in the
drives?
I've been wanting to mess around with some 8-inch drives
If you were on this side of the pond it would be easy.
The 8085A is a really common part with many vendors and all work.
Also if a different one gets hot (they nominally run warm not hot to the
touch)
check to see if there is a bus or address driver shorted or stuck in the
wrong direction.
Make s
On 11/07/2016 07:59 PM, Mark Linimon wrote:
On Mon, Nov 07, 2016 at 11:23:58AM -0800, Chuck Guzis wrote:
But if you're a suburban resident living on Mulberry Street, anything
but single-phase is pretty much out of the question.
Oh, you can get it -- but be prepared for a large hassle.
A former
On 11/07/2016 03:32 PM, Adrian Graham wrote:
> Hi folks,
>
> Still working on this STC Executel and it looks like the CPU isn't
> too good given how hot it gets within a minute or so. The display is
> the same whether there's a CPU physically present or not. I built
> this circuit to test it:
>
>
On Mon, Nov 07, 2016 at 11:23:58AM -0800, Chuck Guzis wrote:
> But if you're a suburban resident living on Mulberry Street, anything
> but single-phase is pretty much out of the question.
Oh, you can get it -- but be prepared for a large hassle.
A former neighbor had a 440V 3-phase Italian lathe
On 11/07/2016 01:04 PM, et...@757.org wrote:
Hmmm it shouldn't be that hard in this day and age to come
up with that kind of current assuming switchers would be
clean enough. I have a home use LED video screen I
assembled/am finishing from Chinese modules that runs on
480 amps @ 5vdc, power
the old clothes makes it sound like a prop buyer for movies... on the other
hand they'd probably buy a dead one for less...
On Mon, Nov 7, 2016 at 6:54 PM, jim stephens wrote:
> Looks like someone put in a high enough bid to hold onto the 11/20 that
> went today. I guessed an amount around what
On Mon, Nov 07, 2016 at 08:04:09PM -0500, couryho...@aol.com wrote:
> now I know what ours is worth!
Clearly not. But I'll be happy to take it off your hands for a hundred
bucks or so. Contact me privately.
(oh it's a JOKE folks :-) )
mcl
now I know what ours is worth!
$ed
In a message dated 11/7/2016 5:55:19 P.M. US Mountain Standard Time,
jwsm...@jwsss.com writes:
Looks like someone put in a high enough bid to hold onto the 11/20 that
went today. I guessed an amount around what it went for would be what
I'd pay, so d
Looks like someone put in a high enough bid to hold onto the 11/20 that
went today. I guessed an amount around what it went for would be what
I'd pay, so don't know if I'd have gotten it or not, but didn't try
since that was around the 3500 dollar level. (it sold for $2961).
The fun thing is
Hi folks,
Still working on this STC Executel and it looks like the CPU isn't too good
given how hot it gets within a minute or so. The display is the same whether
there's a CPU physically present or not. I built this circuit to test it:
http://saundby.com/electronics/8085/freerun.shtml
Using a 4
On Mon, Nov 7, 2016 at 11:44 AM, Ian S. King wrote:
> I love reading stories of component-level repair.
>
Assuming my notes and sketchy memory make any sense:
One of my PDP 8a CPU boards (the M8315) passed all the self tests I could
toggle in, EXCEPT, it would ignore HLT instructions. It'd jus
All,
Sometimes my wheels turn slowly. Work, life, etc. intervened since last
Sept. but I’m back to this task for a while.
I'm trying to help Cindy find homes for some of what's left from her
warehouse. I can hold them only temporarily ( :-) ), but if any of this
interests you pl
Whoops, looks like I sent this to the wrong cct*** email, apologies!
My interest in video terminals has been awoken again, and I am again searching
for one.
I like the look/size of the VT220s, very nice and compact!
Anybody have extra DEC or IBM terminals in Toronto (Canada) ? I’m probably
s
On 11/07/2016 11:04 AM, et...@757.org wrote:
> Hmmm it shouldn't be that hard in this day and age to come up with
> that kind of current assuming switchers would be clean enough. I have
> a home use LED video screen I assembled/am finishing from Chinese
> modules that runs on 480 amps @ 5vdc, powe
On 11/07/2016 06:24 AM, emanuel stiebler wrote:
> Anybody has a spare to sell, give away, trade?
I've got a couple of 55Fs (with head-load solenoids) that I'm not using,
but I suspect that you're on the wrong side of the pond.
I think I may also have a few 96tpi Japanese drives as well, if you're
I wonder if LCM has ever measured the power draw of each of their big machines?
Do they run them on any sort of commercial PDU system? I'd hope so, not
too expensive and they should be able to see real time at least the
current draw.
--
Ethan O'Toole
Yes, that's how the 360's (at least mid-range) were set up. You could tell,
the converter-inverter was INSANELY loud, at a massively piercing audio
frequency. The key was that this one unit gave regulated AC power to all
Wild!
We tried to get a 370/145 running at a guy's house. That had the
On Mon, Nov 7, 2016 at 2:22 PM, emanuel stiebler wrote:
> Thanks!
> It looks like you are right, playing a little with the RAM banks,
> finally got me errors, so at least one chip is dead.
> Will take few days, until my replacements arrive, but now I
> have 384k of RAM ;-)
>
> Still crashes, but
I wonder if LCM has ever measured the power draw of each of their big machines?
On 11/7/16 10:25 AM, Jon Elson wrote:
> We tried to get a 370/145 running at a guy's house. That had the 17 KVA
> motor generator set in the back (WAY more than
> a 145 needed, but they apparently used one MG set fo
On 11/07/2016 10:59 AM, et...@757.org wrote:
All 370's ran off 415 Hz 3-phase power. The mid-sized
ones had the motor-generator set built into the back of
the machine. The 415 Hz (regulated) power was
transformed to low voltage and run through an
inductor-input filter and then series pass reg
The interest in video terminals has been awoken again, and I am again searching
for one.
I like the look/size of the VT220s, very nice and compact!
Anybody have extra DEC or IBM terminals in Toronto (Canada) ? I’m probably
somewhat interested!
-brian
There's nothing stored in the Parameter RAM that won't be restored to a default
state by the OS on boot.
Macs generally won't boot without a PRAM battery though, so if you're storing
your systems without one, you'll need to replace the battery before use.
You might want to run some wire for a s
Yup, all dumpstered by the company formerly known as Rackable
What survives is in the hands of collectors. They worked hard to save what
was still left at the end.
SGI was just as brutal to Cray. Scorched earth to their archives a decade
before.
Ugh. To be fair, I even know CEOs today of co
All 370's ran off 415 Hz 3-phase power. The mid-sized ones had the
motor-generator set built into the back of the machine. The 415 Hz
(regulated) power was transformed to low voltage and run through an
inductor-input filter and then series pass regulated. They had a circuit
they called an "e
On 11/7/16 8:46 AM, et...@757.org wrote:
> I think one of the guys might of
> mentioned you! But he talked as if much of that documentation was gone.
>
Yup, all dumpstered by the company formerly known as Rackable
What survives is in the hands of collectors. They worked hard to save what
was s
Supercomputer collectors are like the mainframe collectors, they like to keep a
low profile other than the
Cray-Cyber folks in Munich.
Those guys are cool, and I appreciate them putting notes online. My Crays
had their hard disks removed and destroyed (came from high side / govt
contractor /
On Sun, Nov 6, 2016 at 6:13 PM, Joseph Zatarski
wrote:
> >On 2014-10-26 3:07 PM, Toby Thain wrote:
> >>* On 21/10/14 7:38 AM, Noel Chiappa wrote:
> *>>>* > From: Toby Thain
> *>>* > Looking to see what the internal self-test returns as an
> error
> *>>>* code
> *>>>* > (that ca
On Mon, Nov 7, 2016 at 9:24 AM, emanuel stiebler wrote:
> Anybody has a spare to sell, give away, trade?
>
> Thanks
>
You might be able to get away with more than just TEAC for the Sage II.
Here is a pic of a system with a replaced drive
http://vintagecomputer.net/sage/SageII/Sage-II_front-d.jpg
Hi folks,
Replying to myself here since I've had a bit of a breakthrough but not in
the way I'd have liked. A fellow collector who also got one of these
machines at the same time opened his up and there was an extra little
bridgeboard piggybacked off some resistors next to the teletext display chi
Anybody has a spare to sell, give away, trade?
Thanks
A very interesting story.
Now we do need detailed information, schematics, maintenance procedures and
software for C1,C2,C38 as well for SPP systems. My SPP1600XA, which I used e.g.
to heat my cellar stopped operation due to breaking the voltage limit using
psu_util.
@Camiel: would you like t
On 2016-11-05 14:25, tony duell wrote:
I have one question:
How does it check, how much RAM is in it?
Boot shows 128K, but the board has 512K
Incidentally there is a .zip file on Bitsavers called SageSources. Unpack it,
and in Sources1 look at PROM2.TXT. That is part of the 68000 source
for
I still need to post the final schematic. A new thread might be a good
idea.
I wanted to keep the board as simple as possible so one could just
wire wrap or point to point it.
It only has a 7474, 7402 and a 7404 as well as the EPROM.
It could easily be done with a GAL or PAL and the EPROM.
I
On 2016-11-07 8:34 AM, Holm Tiffe wrote:
Jörg Hoppe wrote:
Hi,
my version of the MACRO11 cross-assembler for PDP-11 is now on
https://github.com/j-hoppe/MACRO11 .
Among others it fixes the "JMP Rn is illegal" error on "jmp (rx)" opcode.
Also I added the option "listhex" to produce a binary
Jörg Hoppe wrote:
> Hi,
>
> my version of the MACRO11 cross-assembler for PDP-11 is now on
> https://github.com/j-hoppe/MACRO11 .
>
> Among others it fixes the "JMP Rn is illegal" error on "jmp (rx)" opcode.
>
> Also I added the option "listhex" to produce a binary listing in hex
> notation
Thanks for your opinion on this board. I've used it for maybe 25 years
and its does all the 5V Eproms. Its currently configured for 27256.
It does not do any of the three voltage eproms.
Now a manual would be helpful, your comments are things I already know.
I don't care to unwrap a S100 board
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