On Sun, 7 Mar 1999 16:28:52 -0800 (PST) Sellam Ismail
<dastar(a)ncal.verio.com> writes:
>On Sun, 7 Mar 1999, Chuck McManis wrote:
>
>> I'm sorry Anthony but I have to object, we already had this
>discussion that
>> this was not the list to talk about Ebay and now you are turning it
>_into_
>> ebay. Couldn't these auctions also be run on the ccauction list that
>Doug
>> hosts on nut.net ?
>
>Chuck, I have to object to your objection.
>
>I think what Anthony is doing is quite admirable. Instead of taking
>his
>stuff directly to ebay, he's offering it here on the list with a very
>fair
>auction system. He takes the highest bid by a certain date and sells
>the
>item for that amount. He doesn't disclose the bids, so there's no
>chance
>for last minute outbidding, and he keeps the winner's identity
>private.
>
I'll second that. The whole purpose of this group is for hobbyists
to help each other. By offering it here first, he's giving opportunity
to those of us who normally don't get them . . ..
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Visiting a surplus shop today, I found a small herd of Tek Oscilliscopes. Some
of them looked pretty old to me. They want real money for them too. Details:
Model Mod 1 Mod 2 Cart
----- ----- ----- -----
564 3C66 2B67
564 3A74 2B67 Y
504 Y
561A 3A72 2B67
5111 5A20N 5B10N
515A Y
549 1a1 Y
D11 5A14N 5B10N Y
504
564B 3A9 3B4
Prices were originally $200 for most of them, except the 549, which was $400.
Some of them had been marked down to $100. They have some kind of automatic
decrease in price based on how long things stay in the store (1% per day?),
but most of them have been there only since late February. And I don't know
how that effects the ones that were "manually" marked down.
I suspect these prices are outlandish. The same place wants $25 for 2400
baud modems. :-) Anyway, the age-based discount may eventually make the
prices more reasonable. At least for the scopes, if not the modems.
The ones marked "Y" under "Cart" had a "Scope-Mobile" cart with them. But I
didn't think to get model numbers from those.
Oh, and I can't guarantee that these work. I didn't ask if they would allow
me to test them, and at present I don't know enough to be able to test them
anyway. I also can't guarantee that they'll still be there when I next visit.
Questions:
0. How old are these guys?
1. Are any of these potentially useful for computer work? Can they handle the
frequencies used in old machines, say, up to a few MHz? (Judging from their
apparent age, I wouldn't hope for much more than that.)
2. Anybody want one? Be aware that in addition to the price tag, I wouldn't
expect these guys to be easy or cheap to ship. (At least one time in the
past I have had to back out of a deal because I couldn't arrange shipping
within cost & safety constraints.) And the carts are probably too big to
go through UPS or USPS. Given all that, if you want one, let me know.
Cheers,
Bill.
I got some docs (still shrink wrapped!) for poly-XFER CP/M Comms for the
DEC VT-180 or DECmate II running CP/M. You could probably find the disks
for this at ftp.update.uu.se?
If anyone would like these, let me know.
Dave
>Cursor. That reminds me of that TV show in the early 80s. Wasn't it
>called "Automan"? It was this dude who somehow got transmutated with his
>computer and was like a digital superhero. His sidekick was a flashing
>star called Cursor. It didn't last long.
Good memory... yep.. "Automan" - a holographic projection which was
called Automan because "He's the world's first truly automatic man."
(I'm not going to go there...)
Anyway, the actor who played Automan is the one doing the Xyban (Zyban?)
ads on TV...
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
| Compaq Computer Corporation | addresses need '@' in place of '!' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg |
+--------------------------------+-------------------------------------+
You wrote...
>Have you tried a motor repair place? This sounds like a fairly standard
>'run capacitor' for an induction motor.
Tried several local places no one has it so I was looking through the
digikey catalog...
>Just out of curiousity, why do you think it's bad? Is it leaking or
>something? Motor problems on TU56s are normally caused by the transistors
>on the G848 card (or problems on the G847).
It was just a guess given the one inch tall electrolyte snake growing out of
the top of the can :) Long as I'm in there working on it I was going to
replace all four (is this overkill)?
Jay
Hi folks,
Today was the first day of my free networking course at school, at the end
of which I will have received a certificate 'n stuff...anyway, the guy was
trying to explain layered protocol stacks, and data abstraction. It
occured to me that the concepts have no meaning outside the realm of
developing the protocols or applications that use these protocols. And
it's almost impossible to explain without referring to these realms. The
guy was telling us how 'everything in the computer is in binary' but you
need additional network layers 'because Word can't understand the binary
and needs it to be translated'. At this time, I was thinking about my
recent experiences with the PDP-8. I wonder, wouldn't it make everything
so much easier if every computer in schools had a PDP-8 emulator on it,
and students had to learn to make simple programs in PAL before learning
concepts like the OSI 7-layer model, etc? Because, it was obvious that
the guy was being forced to avoid saying the word 'function' or
'subroutine' since people didn't know what it meant....
--Max Eskin (max82(a)surfree.com)
<recent experiences with the PDP-8. I wonder, wouldn't it make everything
<so much easier if every computer in schools had a PDP-8 emulator on it,
For concepts closer to the computer hardware that would eb a good thing.
<and students had to learn to make simple programs in PAL before learning
<concepts like the OSI 7-layer model, etc? Because, it was obvious that
<the guy was being forced to avoid saying the word 'function' or
<'subroutine' since people didn't know what it meant....
It's unfortunate that the course was so top heavy with out a foundation
to hold it up. FYI: I have a copy of a pair of articles going back to
the only MicroSystems (1983) That explains it fairly well in only a
handfull of pages and then even provides a workable example wthat did
not require rocket science to make useful. However the idea of data
encapsulation, abstraction and arrays of data as objects are important
concepts that need to be learned between adding two number on a PDP-8
in PAL and the higher level application of 5GL languages and networking.
It's the side effect of knowledgeless people prescribing course goals and
content.
Allison
In einer eMail vom 06.03.99 22:42:56 MEZ, schreiben Sie:
<< > How does the 34010 do in handling bitmaps?
>
> The 34020 (and I believe the 34010 had that as well) deals with that
> through
> special bit-blit operations, bit-block-transfer and simultaneous
> logical/masking
> operations. This is much supported by VRAM hardware used at that time;
> the VRAM chips have bitblt features built in. The performance was
exactly
Are you sure about that? Most VRAMs (certainly the ones in use when the
34010 came out) seem to be nothing more than DRAMs with a second address
port that transfers one row of data into a shift register. The bitstream
from the S/R is fed to the video circuitry. No bit-blit operations.
The 34010 has instructions for raster operations (bit-blits) using data
anywhere in the address space, and they don't appear to depend on
features of the RAMs used.
-tony
>>
There is in fact both: the processor can do it, but at least the VRAMs
I looked at have some provisions for (simple) versions of that. What is most
important is to use the bit-plane masking facilities inside the VRAMs - at
least those
generations I looked at, maybe that was later than 34010 times.
John
-----Original Message-----
From: Derek Peschel <dpeschel(a)u.washington.edu>
>I'm not an expert on CPT, but I did have one of their dedicated word
>processors for a while. (It may have used a Z-80, I forget. It had 3.5"
>drives.) Do you know if your model was designed as a general-purpose
>computer or as a turnkey word processor?
This CPT 8525 has two vertical 8" drives to the right of that portrait
monitor. Very heavy also.
The 8" disks with it include CP/M and CBasic so it is not a dedicated word
processor.
Phil
