Short question:
How do I transfer LINCtape images back to tape on a PDP-12? Ideally there
is some binary program to load via papertape to format a tape and recreate
it with data transfer over the console serial line.
Christian
I have a TI monitor that has a power cord that is becoming sticky and gummy and I'm looking at what to do with it. I figure the best solution is to probably see about replacing it with a new one. Has anyone ever looked at this monitor and the cord connection? Have any info on it? How difficult it might be to replace it? I haven't been able to find any doc or anything searching online but may just not be using the right keywords. Any other suggestions on dealing with the cord besides replacing it? Wrap it in something I suppose... Thanks in advance. David Williams www.trailingedge.com (http://www.trailingedge.com)
I am unable to confirm for sure the memory assignment process for I know
without a doubt how to set their page assignments. I can guess but that's
dangerous and inefficient. I want to test an unknown core stack, so I need
to know which RAM space I am testing.
I have a PDP 8e core stack with the following:
H121 8x12 core
G233E
G111C
Anyone know the process of assigning the RAM space on the boards?
Bill
Hello from Seattle everyone,
I'm new to the list. I recently bought a Zorba on Ebay, which was my first
machine as a kid back in 1985, dialing into BBSs and learning assembly and
basic. I put a lot of hours in on this machine and was very excited to
acquire one, even though the sale was 'as is'. I have some issues to
address, beginning with perhaps a faulty component on the video board
driving the crt.
While I'm an experienced programmer and have some rudimentary skills with
electronics, I'm going to be in bootcamp troubleshooting this board. I have
some help in my network of friends, but wanted to throw this out to the
list. Are there any Zorba owners who would be willing to trade
notes/advice with me on their experiences troubleshooting hardware issues
(or anyone else out there, for that matter :) )? Have you used the
composite video out to feed another monitor?
Detail on my first issue: the display appears to need the kind of
stabilization I _thought_ the horizontal and vertical hold adjustments
would provide, but it's not entirely stable. I have tried the composite
out, feeding it to a cheap composite->HDMI adapter, but that signal looks
like a blank screen in need of vert/horiz hold adjusting. Before I go much
further, I was hoping someone out there might be able to verify their use
of the composite out to an external display. I haven't found any detail on
what that signal should look like, other than it's 'composite' - maybe
someone with more expertise can tell me what assumptions I can make about a
composite signal.
Thanks for reading that long message - and glad to be a new member of the
list.
Ben
Does anybody have a wiring diagram?? I have one with two broken wires!
Or a photo of the BERG connector as long as the colour code is
consistent :-)
Thanks in advance,
Nigel
--
Nigel Johnson, MSc., MIEEE, MCSE VE3ID/G4AJQ/VA3MCU
Amateur Radio, the origin of the open-source concept!
Skype: TILBURY2591 nw.johnson at ieee.org
A few months ago, thanks to help from several people here, I converted
an SQ703 TMSCP controller to SQ706 MSCP.
I had problems trying to use it on the vax due to the complexity of
mapping Q-Bus registers under ODT, so put off trying until I got the
LSI-11/73 going.
Now I have a problem: It seems to run and recognise the controller as
SQ706 according to the on-board diagnostics, however it insists saying
it is at 777450, the TMSCP address.? Trying to change it gives me an
out-of-bounds message.
OK, I thought, I will just use it there.
Put it in to a running RT11 system and it shows up at 772150 and clashes
with an existing controller!
It seems that one of the PALs is maybe setting up the address!
Anybody else tried this?
cheers,
Nigel
Here's the fun:?
https://www(dot)bbc(dot)com/news/entertainment-arts-59089596
Maybe our vax computers will become popular once again!
--
Nigel Johnson, MSc., MIEEE, MCSE VE3ID/G4AJQ/VA3MCU
Amateur Radio, the origin of the open-source concept!
Skype: TILBURY2591 nw.johnson at ieee.org
I would like to use my tablet, Samsung Tab E model SM-T560NU, to connect
to my VAX and Linux computers.? There seem to be a large number of
'Apps' out there.? What is a good one to use?
The VAX doesn't have SSH only insecure TELNET.? Another can of worms,
SSH on the Vax?
Doug
It might be the Mikra-D MD-2040 1702 programmer. Similar to the MD-2044 on my website but a parallel data interface (e.g., manual switches and lights) instead of a serial RS-232 interface. The 2040 is briefly mentioned in the .pdf file here: https://deramp.com/downloads/eprom_p...kra-d/md-2044/
Mike
