I've managed to find the pieces (or at least the most important, which is
one of my two RD54's) to do some performance testing on Doc's recent idea
of using a network disk instead of a local disk to get better performance
than a RQDX3/RD54 combo offers.
As a result I'm trying to get either a VAXstation 4000/60 or /90 setup so
that I can use it as the host. In doing this I ran into a slight problem
with VAX/VMS V5.5-2, it doesn't like my 3rd party SCSI disks that I've got
in the /90. Not a big problem as I've got some brand new (!) RZ25's that I
can put into one of the systems, and I want to put a RRD42 into one of them
as well.
Stupid question, how to I go about getting the cover off of the 5 1/4" bay,
and am I supposed to have another piece of plastic to go there? If it
requires another piece of plastic (that I don't have), I'll just hook the
drive up internally long enough to do the install.
Now to decide which system gets a V5.5-2 install, I'll probably go with the
/90 as it's my fastest VAX, and will therefore be the best for building
software on.
Zane
--
| Zane H. Healy | UNIX Systems Administrator |
| healyzh(a)aracnet.com (primary) | OpenVMS Enthusiast |
| | Classic Computer Collector |
+----------------------------------+----------------------------+
| Empire of the Petal Throne and Traveller Role Playing, |
| PDP-10 Emulation and Zane's Computer Museum. |
| http://www.aracnet.com/~healyzh/ |
Hmm... Aren't semantics fun?
Ed Tillman
Store Automation Tech Support Specialist
Valero Energy Corporation
San Antonio, Texas, USA
Office: (210)592-3110, Fax (210)592-2048
Email: edward.tillman(a)valero.com <mailto:edward.tillman@valero.com>
-----Original Message-----
From: Fred Cisin (XenoSoft) [mailto:cisin@xenosoft.com]
Sent: Wednesday, March 05, 2003 10:57 PM
To: cctalk(a)classiccmp.org
Subject: Re: Amiga Term Softs needed
> >> Hmm... What's a P$Uer?
And what are "softs"?
Is "Term" and adjective?
Hmm... What's a P$Uer?
Ed Tillman
Store Automation Tech Support Specialist
Valero Energy Corporation
San Antonio, Texas, USA
Office: (210)592-3110, Fax (210)592-2048
Email: edward.tillman(a)valero.com <mailto:edward.tillman@valero.com>
-----Original Message-----
From: Jeff Brendle [mailto:brendle@ems.psu.edu]
Sent: Tuesday, March 04, 2003 1:57 PM
To: cctalk(a)classiccmp.org
Subject: Re: Amiga Term Softs needed
Marlin: Since you are a P$Uer, I think there used to be an Amiga user
group on campus, you might want to check to see if that still exists as
a mailing list or some such thing here, who knows, there might still be
people that putz around with the old beasties? Will try to recall who
it was of my old coworkers at CAC who was the Amiga guy... thinking
that it was Doug Bischoff, and if I remember correctly he is still
e-reachable at his role-playing site, xanodria (sp?), will have to
think more on this & get back to you.
-j
On Tuesday, March 4, 2003, at 01:11 PM, Marlin Bates, IV wrote:
> Hello,
>
> I am currently resurrecting an Amiga 2000, but I have neither an
> Ethernet card or Terminal software. There are tons of programs on the
> net, but getting them from the net to the Amiga is proving difficult.
> If anyone can help me in this chicken/egg scenario, I would REALLY
> appreciate it.
>
> Thanks
>
> -Marlin
>
Jeff Brendle Office: 248A Deike Bldg./(814)865-3257/fax
863-7708
Desktop Support Spv. Home: #210 Parkgate 349 Toftrees Ave.
Penn State - Coll. of E&MS State College, PA / (814)861-8180
Mailto:bli@psu.edu AOL/MSN/Yahoo! IM - JSBrendle
There is another MINC-11 on eBay for those prepared with some $$$ in their
pockets. The opening price is $19.99 and the auction will run for 9 days
(until March 15th at 10:02 PM Pacific time).
Here is the title: "DEC PDP MINC-11 System (RARE)" and the link:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=1247&item=3404934502…
d=1
This one appears to be pretty complete; it has the dual floppies and a monitor
with it.
Enjoy,
Stuart Johnson
-------------------------Original Message-----------------------------
Date: Wed, 5 Mar 2003 07:29:01 -0800 (PST)
From: Ethan Dicks <erd_6502(a)yahoo.com>
Subject: Looking for data on the MAN2815 display and Nat'l Semi DS8867
<snippage>
...I'm trying to assist in the reverse engineering and can *not* find any data
on the LED display itself, a MAN2815, nor one of the chips that seems to
be driving it, a National DS8867.
I have googled for an hour looking for them. No results.
Anybody heard of these parts?
-ethan
------------------------------------------------------------------
Can't help ya with the display, but I do have specs on the DS8867:
8-segment constant current LED driver for 3 and 4 cell battery
systems, designed to be driven from MOS circuit(s).
Pins 1-8: Input 1-8, 10V max
Pins 17-10: Output 1-8, 14ma typical
Vcc:18, 6V max
GND:9
Sorry, don't see a segment map in the databook; assume 1=a etc.
Anything else ya need to know?
mike
Hi there, I have an old osborne 1 with a fan, software, and several
issues of fog. I wondering where I can sell or donate this computer. It
looks like new & I believe it still works.
thanks
grrepa(a)hotmail.com
------------------------------------------------------------------------
Help STOP SPAM with the new MSN 8 and get 2 months FREE*
The HP 9127 is a HP-IB 5 1/4" floppy drive and normally it reads and writes a LIF format but there's supposed to be a way to have it read and write disks in a MS-DOS compatible mode. Does anyone know how to do it? I've been playing with different formatting options but so far I haven't found the right one.
Joe
Has anyone managed to find drivers for the DaynaFile?
I have a couple I'd like to experiment with. One non-functional,
unfortunately, but I pulled the rom on it to image it and
attempt a disassembly. I have another that appears to work,
or at least responds to a scsi inquiry. I plan to hook
it up to a logic analyzer to get a memory map of the board.
The logic boards on the two I have are simple, with common
parts in clip-friendly 40-pin dip packages:
scsi: DP5380
floppy: WD2793
micro: 8031
Documentation is available for all of these, so a person could
potentially write new firmware. Probably much easier than
disassembling the rom.
I remember using a DaynaFile on a NeXT cube with an old (ca.1990?)
version of Nextstep, so there are potentially Nextstep drivers
out there as well.
Regards,
--
Eric Josephson
Barry,
didn't you ask (under the pseudonym of Fred Feuerstein) for a
description of the switches on a DS120 Terminal Controller?
I managed to find a user manual from the stone age, stating that the
"Logic Card" is part number 512000-2. Not quite the 5120000-1 that you
mention in your posting, but possibly close enough to provide hints for
what functions might be there. YMMV...
This is what the manual says about the DIP switches:
SWITCH FUNCTION
1 Carriage motor disable (test only)
* 2 Reverse channel override
* 3 FDX/HDX override
* 4 Local Auto-LF override
** 5 Parity odd (ON) parity even (ON)
** 6 Parity enable (ON) parity disable (OFF)
7 AUTO-LF from line (ON) disable (OFF)
** 8 X-on, X-off handshaking enable (ON) disable (OFF)
* On DECwriter models with the 8-key control pad, these switches are
duplicated on the keyboard. Those models with the 3 rocker-switch
panel must control these features with the DIP-switches.
** See Appendix B, "Additional User Information", for a functional
description of these switches.
End of cite. Appendix B talks a lot about half-duplex modes, which I
presume will not be used with your PDP-11. Hence, you will want to have
switches 2 & 3 in the OFF position.
The description of switch 5 obviously contains an error. For even
parity, the switch needs to be in the OFF position (says appendix B).
Another noteworthy cite: "If parity is disabled by DIPswitch #6 "OFF",
then DIPswitch #5 provides 8th bit spacing when "ON" and 8th bit marking
when "OFF"."
In other words, you actually cannot select "no parity", but you can set
"mark" or "space" parity.
You report having trouble with the 20mA interface. Maybe you need to
switch from active to passive or vice versa? - Here's what the manual
has about it:
3.1.3 20 MA CURRENT LOOP
A 20mA current loop interface is provided featuring a photo isolated
receiver and transmitter. The receiver and transmitter may be configured
to operate in either passive or active mode. Unless otherwise specified
at the time of purchase, the DS120 comes configured with a passive
transmitter and receiver. Although specified at 20 mA, the signal line
currents flowing in the receiver loop may be as high as 80 mA without
harming the interface. Any current in excess of 15 mA will be
interpreted as a mark, and any current under 3 mA is interpreted as a
space. 1500 volts of isolation is provided by the photo isolater if
passive is employed.
The jumper configuration for the current loop interface is as follows:
W1 W2 W3 W4 W5 W6 W7 W8 W13 W14
-------------------------------------------------------------------
PASSIVE Out In In In In Out Out Out Out Out
ACTIVE In Out Out Out Out In In In In In
The connections for this interface are as follows:
PIN 2: Transmit -
3: Receive -
5: Transmit +
7: Receive +
End of cite. Hope this helps.
If you need more information, I can get whatever is printed in the
manual for you. I do have a LA36, but it features the original DEC
controller board, so I have no way of actually trying anything.
--
Andreas Freiherr
Vishay Semiconductor GmbH, Heilbronn, Germany
http://www.vishay.com
