>Does anyone know how uncommon the MicroVAX I is these days? Someone's got
<invoking John Carson>
No, how uncommon are they?
</>
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | email: mbg at world.std.com |
| Member of Technical Staff | megan at savaje.com |
| SavaJe Technologies, Inc. | (s/ at /@/) |
| 100 Apollo Drive | URL: http://world.std.com/~mbg/ |
| Chelmsford, MA 01824 | "pdp-11 programmer - some assembler |
| (978) 256 6521 (DEC '77-'98) | required." - mbg KB1FCA |
+--------------------------------+-------------------------------------+
>Forgot to mention that the PDP11/04 also has a GT40 & light pen.
Then strictly speaking it isn't a GT40... it is a PDP-11/04 with
a VT11 and VRxx monitor. The GT40 was specifically a PDP-11/05
based machine (with the mustard color scheme).
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | email: mbg at world.std.com |
| Member of Technical Staff | megan at savaje.com |
| SavaJe Technologies, Inc. | (s/ at /@/) |
| 100 Apollo Drive | URL: http://world.std.com/~mbg/ |
| Chelmsford, MA 01824 | "pdp-11 programmer - some assembler |
| (978) 256 6521 (DEC '77-'98) | required." - mbg KB1FCA |
+--------------------------------+-------------------------------------+
At 14:56 PM 1/9/04 -0800, you wrote:
> Ok, who was it that said they had information on
> one of these? I just picked one up today and need
> to know how to talk to it.
Hi Dwight,
Joe is selling me his; I don't have any info yet but maybe in a week or so
we can compare notes...
-Cole
Hi all
OK, so I have three of these cards (DDC BUS-65517) but no
software or any other info.
First time I've seen triaxial BNC connectors :-)
So, how do I make it work?
Wouter
www.retro.co.za
The pieces are all coming together on my PDP-11...I received my SCSI card
today and am waiting on the memory. I've been doing some research into
what order to insert the cards into a BA23 -- this is what I've come up
with. Any suggestions otherwise?
Since I haven't seen the QRAM-44B yet, I'm not sure if it's a half height
or quad height board. If it is a half height, do I need a bus grant
continuity card in the CD portion of that slot?
Starting with the 3 Q/CD slots on top, then the 5 Q/Q slots:
|------------------------------------------------------------------
| M8190-AB (quad height) | |
|------------------------------------------------------------------
| Clearpoint QRAM 44B | M9047 ??? |
|------------------------------------------------------------------
| M8020 (DPV11) | M9047 ??? |
|------------------------------------------------------------------
| Viking SCSI | M7516 (DELQA) |
|------------------------------------------------------------------
| | |
|------------------------------------------------------------------
| | |
|------------------------------------------------------------------
| | |
|------------------------------------------------------------------
| | |
-------------------------------------------------------------------
Thanks, everyone! Wish me luck configuring the sucker...
Chris
I'm renewing an old bounty. I need to find a Koby Electronics HS300-01
power supply circa 1986. A technical manual would also be relevant. This
was including in a product made by Interand Corporation out of Illinois.
The relevant feature of the power supply is that it would "monitor a
network in a low power mode and 'wake-up' if there was activity". Since
this is not generally the function of a power supply, it may be that the
power supply had some sort of sensing circuitry to monitor a data
connection and then fully power up when it sensed activity. If there are
any other products circa 1986 that fit this description then that would
also be relevant.
The timeframe for this is very short: I need something by Monday for my
client.
If this rings a bell with anyone then please get back to me. I'm paying a
bounty for solid leads.
Please contact me directly if you've got anything.
Thanks!
--
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
[ Old computing resources for business || Buy/Sell/Trade Vintage Computers ]
[ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]
After the better part of 2 weeks I've finally gotten one of my
PDP-11/40's to execute some code. Both initially exhibited frustrating
similar problems.
Both were stuck in "reset". This was because the processor was seeing
AC-LO and DC-LO asserted. While the symptom was the same, the cause was
different. In one case the power supply was not deasserting the
signals. In the other, something in the RK-11D was pulling the signals
low. I've worked around both but fixed neither.
Once that problem was solved on the "first" 11/40, I discovered that
there was a stuck bit when trying to read or write memory. This was
temporarily fixed by swapping the data-paths module. At this point I
could read and write to memory.
Memory could be read and written through the front panel, but execution
would immediately trap to location 4 (6 showing on the front panel).
This was a "bus error". I unfortunately spent a lot of time swapping
memory around (this was not the problem). Replacing the data-paths
module with another suitably jumpered one solved the problem and the
11/40 happily runs a little test program. However, at this point I'm
hesitant to run it for very long since there is an acrid smell emitted
while the system is powered on. I don't want to burn anything up until
I track it down.
The second 11/40 still traps to location 4. I've verified that the
memory is good by swapping memory boards and backplane (I'm using
MF11-UP memory) with the first 11/40. I checked the supplies and they
seem a little low, but it got late tonight and I'll check and adjust
them tomorrow to see if that fixes the problem.
It's a bit hard to determine if any one card is at fault because the two
11/40 CPUs are configured very differently (which means there are almost
2 dozen jumpers between all the boards that need to be changed). Here's
the 2 different CPU configurations:
CPU #1 CPU #2
KD11-A KD11-A Basic CPU
KE11-E KE11-E EIS
KE11-F FIS
KJ11-A Stack limit option
KT11-D Memory management
I have another set of CPU boards (but no extra FIS) that if the voltage
checks don't solve the problem I'll try to see if that fixes it.
If anyone has any other suggestions, I'd appreciate hearing from you.
--
TTFN - Guy
I'm looking for PC Board BBS software published by Clark Development. I
need a copy prior to 1990.
This is another bounty and will be rewarded with $$$ for an original
package with documentation and software.
Please contact me directly if you've got a version of this prior to 1990.
Thanks!
--
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
[ Old computing resources for business || Buy/Sell/Trade Vintage Computers ]
[ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]
H-hey, Joe, I heard you shot your old lady down...
Just kidding -- per our side conversation, it sounds like we have a deal.
Thanks!
-Cole
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Hey Ya'll... I need some help... I need datasheets and/or pinouts for Sharp's LH0080 (Z80-cpu clone) cpu. Does anyone here know where I can find them? Any help would be much appreiciated. Thanks.
Lyos Gemini Norezel
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