On Sat, 13 Oct 2001 at 22:51:32 -0400 "Glen Goodwin"
<acme_ent(a)bellsouth.net> said:
> Philip Pemberton wrote:
>
> > A while ago I got a Phonemark "Quick Data Drive", aparrently made by
> > Entrepo. It uses small endless-loop tape cartridges called "Wafers" (any
> > relation to the Rotronics Wafadrive? hmm...).
>
> Sounds like this device uses the same "stringy floppy" tape as the A&J
> Microdrive and the Wafadrive.
Looks like it - I found a post on GoogleGroups from someone who said the
Wafadrive used the same carts.
> > I've had the cover off, and it appears to use a small-ish black plastic
> > mechanism with "BSR" printed on it. This mechanism looks (from the
front)
> > exactly like the ones on the Rotronics Wafadrive. Anyone know if
> Wafadrive
> > cartridges will work with it? Anyone know where to get Wafadrive
> cartridges?
>
> Try comp.sys.sinclair. Be advised that Entrepo made two types -- A and B.
> Same tape, different housing. I have A&J drives (one each A and B type)
> hung off my TS2068.
Hmm... Live and learn.
By TS2068 I assume you mean the Timex/Sinclair 2068.
> The drives are slow, and the tapes are extremely fragile, to the point
that
> I rarely use the drives any more, in order not to destroy my few remaining
> tapes.
Urk! Time to get a few tapes in while they're still available :-)
If the tape is that fragile, I might pull one apart and replace the tape
with better quality tape.
Or I might design my own "stringy floppy" drive - even more fun!
Anyone got a spare QOS wafer?
--
Phil.
philpem(a)bigfoot.com
http://www.philpem.f9.co.uk/
>Does anybody have the pinouts (16 pin DIL). It's not in any of my
CMOS
>databooks that I can find. If you do, could you please type them as
a
>simple text file (as in
From www.freetradezone.com:
1. B3
2. (A<B) IN
3. (A=B) IN
4. (A>B) IN
5. (A>B) OUT
6. (A=B) OUT
7. (A<B) OUT
8. Vss
9. B0
10. A0
11. B1
12. A1
13. A2
14. B2
15 A3
16 Vdd
Antonio
>I've scanned the schematics from the 480Z Information File and put
them
>online. However, they are hand-drawn, so I've had to scan them in
>grayscale at 300dpi in order to be readable.
>
> http://vt100.net/rm/480z/schematics/
Be warned that the page does not load
if you have Javascript on (at least in
Netscape 4.7). It appears to be missing
at least http://vt100.net/rm/480z/rml.css.
Netscape 6 OTOH is fine.
Antonio
On Saturday, October 13, 2001 3:06 PM, Tony Duell
[SMTP:ard@p850ug1.demon.co.uk] wrote:
> I have the Sharp PC1500 (very similar to the TRS-80 PC2) technical
> manual.... (well, I would, right :-)).
>
> It doesn't say that much about the cassette format, but it does say
> something. If there are any details you're not sure about, feel free to
> ask me in case I can find them...
>
> >
> > I *WILL* IRC from one of these, goddamnit..
>
The PC-1500 is the same calc. The only differences are in the badge and the
keyboard. You can plug Sharp modules, printer, etc into the RS (and vice versa)
I have the RS equivalent technical manual. It gives specifications on the
frequency
encoding and rate. I also managed to scrounge a break down of the raw hex to
Basic operand (two digit hex code to each operator/char, a small amount of
padding)
> Err, add a CE158 RS232 interface (to the PC2/Sharp PC1500)? It contains a
> 1-line terminal emulator in the ROM :-) Yes this device does exist...
>
> Radio Shack sold a similar unit for a time. The ROM and RS232 interface
> was indentical, but the Centronics port (present on the CE158) was not
> fitted. The commands to talk to it were still in the ROM, but undocumented...
>
> I have one of each type. With the latter one, I could have added the
> Centronics port (it's only a couple of buffer chips, and I have all the
> schematics), but instead I packed an ADC chip in there, using the 'spare'
> port lines on the I/O chip to talk to it (I/O lines that would have been
> used for the centronics port, etc). Made a nice pocket data logger :-)
>
> -tony
The problem is finding one. I've had *no* luck, and even if I could find one,
it
wouldn't help me with the PC-1 (Sharp PC-1211) anyway.
Jim
I wrote:
> > If you have a pile of cards, one machine, and none
> >of the cards work in that specific box, I'd suggest that there may be a
> >fault in the box, or another device in there which conflicts with your
SCSI
> >cards.
Iggy replied:
> Who cares what the cause is? The point is that it won't work.
??? Well, *I* care what the cause is. If you put a piece of hardware in a
system and it doesn't work, don't you want to know why??? I don't
understand this.
> I see that BIOS setup utility on the cards as a sympthom of the low level
of
> integration. The cards behave as an alien entity in the computer.
??? Okay, so you have to integrate the card into the system yourself, and
that setup utility gives you the information and control you need to do it.
Alien entity? What do you mean???
Glen
0/0
Mike (and any others),
If you frequent "big physics" or other labs, you might know
of the whereabouts of a part that is currently needed. If you
do, it could be payday for you.
Need from 1 to 8 Eltec Eurocom-7 VMEbus CPU's order number
( Rev. ) B130 or equivalent.
Sincerely,
Bennett
> What about the system that was used in large scale lab stuff,
> I am thinking by Kinetic Systems and it linked instrument racks
> together that they called Crates. They were all over the big
> physics labs.
hmmm, what about usb net linq? i know it's new and i'm probly gonna get
flamed for saying it, but it's just as new as 802.11b wireless. and what
about phonenet/phonelink 10mbit over the phone lines in the house? or even
powerlink, 8mbit over the power outlets in your house?
- John Boffemmyer IV
At 10:47 AM 10/14/01, you wrote:
> > Sellam Ismail wrote:
> > >
> > > On Tue, 9 Oct 2001, Tarsi wrote:
> > >
> > > > 4) Any other interesting topologies I should try? I have plans to
> > > > do: Arcnet, FDDI, Token ring, Localtalk, 10b2, 10b5, 10bT, 10bTX,
> > > > 10bFiber, and (eventually) 802.11b wireless.
> > >
> > > String and tin cans?
> > >
> > Message in a bottle ???
>
>Smoke signals? Talking drums?
>
>...Boom-ba-ba-Boom-ba-ba-Boom-ba-ba-Boom-ba-ba-Boom-ba-ba-Boom...
>
>-dq
----------------------------------------
Founder, Lead Writer, Tech Analyst
and Web Designer Boff-Net Technologies
http://boff-net.dhs.org/index.html
---------------------------------------
> Sellam Ismail wrote:
> >
> > On Tue, 9 Oct 2001, Tarsi wrote:
> >
> > > 4) Any other interesting topologies I should try? I have plans to
> > > do: Arcnet, FDDI, Token ring, Localtalk, 10b2, 10b5, 10bT, 10bTX,
> > > 10bFiber, and (eventually) 802.11b wireless.
> >
> > String and tin cans?
> >
> Message in a bottle ???
Smoke signals? Talking drums?
...Boom-ba-ba-Boom-ba-ba-Boom-ba-ba-Boom-ba-ba-Boom-ba-ba-Boom...
-dq
Today I came by an RS6000 7012-320H (Powerserver 320).
On topic, since it was introduced in '91.
It seems to have 16MB RAM, a SCSI card, an 800MB HD,
25MHZ cpu and a 8-port serial card. No framebuffer.
There was an 8mm tape unit that came with it. Oh, and,
>from what I can gather from the IBM web site, it is
missing some sort of "ethernet riser card" which seems
to provide the means to drive enet starting from a
network header on the mainboard. I should be getting
some of the terminals that were hooked to this
beast. However, I have neither keys nor AIX install
media. So I have several questions:
1) Which OS' (besides some old version of AIX) run on this
box? Or, if I am stuck with AIX, in addition to
praying that the HD is still alive, how could I
break in and change the root password?
2) What exactly is this "ethernet riser card"? Do I have
a network-less system?
3) Late last year, I posted a message to this list about
some SIMMs that I grabbed off an AS400 system; they
look like 72pin SIMMs but have a slightly different
form factor and won't fit in a standard 72 pin socket.
The thing is, they seem to fit the sockets in this
system. And, that AS400 was equipped with exactly the
same model of HD that this RS6000 has. So I am
wondering if those 4MB SIMMS will fit this system,
which is filled with 2MB SIMMS...
carlos.
--------------------------------------------------------------
Carlos E. Murillo-Sanchez carlos_murillo(a)nospammers.ieee.org
