Many years ago I gave away some PDP 11/60 hardware to someone on this
list but don't recall who it was (Ethan maybe?). Anyway, I have recently
discovered a stack of various print sets that I believe went with that
system and would like to send them along. If you recall that long past
transaction (10 years ago maybe? More? Less? Don't recall exactly, old
age is killing my memory) please contact me so I can make arrangements
for these. And if you aren't interested please let me know so I can see
if anyone else is interested in them.
Hello,I have a current hobbyists license for OpenVMS 7.3 and a handful of simulated VAXen. I wanted to add my simulated 11/780 and 11/782 to my DECnet and wondered if there was a (legal of course) license workaround to install networking on an older version such as 4.4. The current PAKS will not work.Brian.
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> From: Zane Healy
> Based on his area code, he's in Virginia, near Washington DC. So far
> enough that I can't be tempted
That's a small enough machine that it wouldn't cost much to ship (via
Pak-Mail or similar, if the current owner's not up for dealing with shipping).
I'm not too far from DC, but it's still 6 hours on the road for a round-trip,
so not too resource-effective for me to go get it.
I always have been amazed by the complexity and peculiarity of
fixed/removable hybrid discs like DEC RC25 and CDC 9457.
Looking at some specifications found on the web, these drives look quite
similar each other, even if these are completely different on an exterior /
interface point of view...
Maybe there's some compatibility between the two products?
I am clearing out a storage space and will be offering up some of the old systems and miscellaneous peripherals currently stored there as I clear and sort things.? To start with I have the following available. If anyone is interested or knows where else to offer the various items contact me off list.? If I can't find anyone interested I'll probably just send things on to recycle as I need to clear and close the space.
All of the following are base units, no keyboards or other external peripherals although I suspect there may be keyboards somewhere in the storage space but can't guarantee it. If I do find some I can pass them along with the units if interested.
1) Macintosh SE/30 - Appears to have some expansion card of some sort inside with with a 15 pin connector and what I think was a BNC connector?
2) Macintosh SE/30 - Has a ribbon cable coming out the expansion slot in the back but no idea what it connects to inside or anything else about it.3) Macintosh Plus 1Mb - This sounds like there might be something loose inside if you turn it over.
All systems are in unknown state and unopened so I have no idea what is inside or what condition they may be in. Systems are located in Houston, TX.
Contact me off list if you need any more info or interest in these systems.
Since I'm going to be out in Seattle for a week to participate in VCF/PNW,
I was wondering if anyone in the area could lend me a hand with help
reading in an old QIC-24 25MB tape cartridge or two?
One has the TurboDOS backup/install media for a Televideo TS-816 that I got
>from Don Maslin back in the day. I think the other one is related too, but
it was unmarked.
I would like to at least try to get images off of them. At least one of
them has a working belt.. the other ones fell apart when i tried removing
the belt to reform it.
This may or may not be new or useful to anyone here, but I came across this website by accident today. They have a considerable selection of rather hard to find parts for old home computers, game consoles, and even arcade machines. Figured I would send along the link.
"He may look dumb but that's just a disguise."? -- Charlie Daniels
"The names of global variables should start with? ? // "? --?https://isocpp.org
I have several PDP-11's in my collection (among other things), and not
enough PC05 tape readers (or enough room) to go around. But most if not
all of my machines have M7810 PC11 interfaces, and I have one I could
move from machine to machine as needed. Moving a PC05 around would be a
lot more work, and not every rack has room. ;)
So, I took a look at what it might take to interface with an M7810 (or,
down the road, a PDP-8/L or PDP-12. It looks like the emulator would
have to accept as input just 3 lines (Initialize L, IOP2(1)/Select,
IOP4(1)/Read) [It would not need the redundant Initialize H, IOP1(1),
Qualify or Skip], and would have to drive 11 lines into the pullups on
the M7810 (8 Data lines, IO Bus INT L/Reader Done L, Outtape/Error and
RDR RUN L/RDR Busy L).
So, a total of 14 interface lines. (The 8 or 12 would take a few more
The pullups average about 470 ohms (1 is 1K, 1 is 220, the rest are
470), so at 5V the output has to sink a bit over 10ma, and all total
An Arduino Uno with an Ethernet shield would have 20 minus 5 lines
available, in theory, but if one wants serial I/O as well for debugging,
that sucks up 2 more lines - so only 13 available. And sinking 120ma
would be a bit much though I could likely sprinkle inputs among the
outputs to make it work so as to stay within the recommended sink
limits, and at least initially have it never run out of tape, and tie
So, I am thinking about an Arduino Mega, as it has more output groupings
to sprinkle the sink current around, and 5V interface capability, and
more pins to eventually support my PDP-8/L and PDP-12.
(I could do it with a PIC - did that for a Documation card reader to PC
interface, but I am really tired of fighting Microchip's IDE.)
BUT - it also occurs to me someone may have already done something like
this? Any leads / ideas?