On Oct 6, 9:21, Jay West wrote:
> I believe it was a program called PUTR that I used on a PC to
read/write
> 5.25 floppy disks to exchange data with my PDP-11/23 that had an RX50
drive
> in it. Should the PC drive be a 360k floppy or a 1.2m floppy?
Ideally, neither: 80-track double density. An RX50 is only
single-sided (80 tracks, 10 sectors of 512 bytes per track), but
obviously a double-sided drive will do, and that includes a "1.2M"
drive if it's capable of doing DD as well as HD.
> Wonder if there is some story as to the history of "disc" vs. "disk"
:) HP
> always used "disc".
"disc" is from the Greek "discus", and is (or was, until recently) the
more commonly accepted English spelling; "disk" is an Americanism which
has spread to the UK. Acorn always used "disc" as well.
--
Pete Peter Turnbull
Network Manager
University of York
I got these cards a while back(I think I asked what they were here on
the list back in 2001), mostly MicroVAX II cards I think, all Q-bus.
I'm mostly interested in getting these out of the way... I have no
plans for building or keeping spares for a MicroVAX or anything
beside my 11/84. Not sure what they're worth, and keep in mind they
are untested. Make an offer plus actual shipping - I'll also consider
trades for Unibus cards for my 11/84. Whatever the list doesn't want
I'll probably put on eBay(I'll give you guys a week or two for those
that don't keep up with their email very well).
National Semiconductor NS638 - memory card with a 50-pin connector on the front
Sigma Information Systems DZV11 clone
unknown Emulex - marked TU0210401
M7551-CA MSV11-QC Q 4-Mbyte 22-bit parity/CSR MOS RAM
M7164 KDA50-Q Q-bus SDI adapter 1 of 2
M7606-AF MicroVAX II CPU
M7608-BC not in guide? MicroVAX II RAM
M7608-BF
M7516-YM DELQA-M Q Qbus to Ethernet Turbo Module, Q22
M8053-MA DMV11 Microprogrammed controller (needs one of
M5930-M5931) with DDCMP control ROM (point-to-point or multidrop)
I have three of these: M3104 DHV11-A Q 8-line Asynchronous
Multiplexor, with DMA
--
/------------------------------------\
| http://jrollins.tripod.com/ |
| KD7BCY kd7bcy(a)teleport.com |
\------------------------------------/
>Now I go hunt for an SE PDS ethernet card. (Anyone have a spare?)
I believe the SE and the SE/30 use a different PDS slot ethernet card.
The SE/30 card is compatible with the IIsi, but I do not think it is
compatible with the SE. However, that doesn't mean you can just buy an
ethernet card for the IIsi and use it in the SE/30. The IIsi also
supports NuBus ethernet cards via a PDS to NuBus adaptor card. That style
can't be used in the SE/30.
So double the cards before you buy yourself the wrong card. (and BTW:
I've seen the SE/30 cards on ebay for around $10.00)
-chris
<http://www.mythtech.net>
Am I crazy to sell a DEC 3000/500 server (desk side) for $50? I
believe it's got all the RAM it can fit and disk in and lots SCSI
plugs out. My HSZ40s go for $25 a piece. My HP9000K400 with 2xDDS2
drives and 30 GB (?) RAID array and HP Terminal all in one rack go
for $100.
Am I crazy or just fed up about stuff taking space in my garage?
If you are in the Indianapolis area and want to get some stuff,
go for it as long as supplies last.
-Gunther
A number of VAXen are available this week from www.auctionbdi.com. I gave
them all of my "spares machines" which I cannot store and no one in the Bay
Area wanted. The good news is that BDI will ship them to you pretty much
anywhere in the country and the minimum bid is $25. The lot to look for has
3 MV3400's (in BA213 cases), one VAX 4000/300 (in a BA440 case) and one
MicroVAX II in a pedastal BA23 case. I don't recall how complete they are,
I do thing the 4000/300 is complete except for some DSSI plugs which I
needed to bring my 3800 on line. Two of the 3400's have the front "door"
(one says MicroVAX 3400, one says VAXServer 3400). If you've got a 3400 or
4000/300 there are plenty of parts to "enhance" your system. I believe the
4000/300 has 192MB of memory but can't swear to it)
There is also a MicroVAX 3600 in a H9644 rack. This one I've never looked
at in depth other than to note that it has a 4 SCSI drives and a tape but a
gap where the SCSI controller had been. Given that it couldn't talk to the
disks I pretty much ignored it.
Finally there are some PC parts with a nice 17" NEC 5fg monitor (including
the special NEC VGA cable). The monitor is nice but not an "Energy Saver"
(it stays on as long as power is applied, no standby mode) Probably not of
interest to this crowd but I thought I would mention it.
--Chuck
>btw I can't seem to get www.mythtech.net... is it up?
>it could just be the Nameserver I am stuck with.
Its up now, it was up when I tried it. So maybe it was down and fixed
itself, or maybe there was a failure elsewhere. Feel free to try again.
-chris
<http://www.mythtech.net>
The users guide can be downloaded here:
http://www.retrocomputing-world.com/biblio/computer/acorn/doc/MorleyTeletex…
Furthermore you could check http://www.8bs.com/ and The BBC lives
(http://www.bbc.nvg.org/ ). The latter should have an archive of ROMs,
which almost certainly should have the ROM for your adapter.
Cheers,
Eelco
>>> Tony Duell <ard(a)p850ug1.demon.co.uk> 10/05 7:24 >>>
While looking for Econet bits, I found the above-mentioned unit (Morely
Electronics Teletext Adapter).
It's clearly a BBC periperal. On the back is Belling-Lee coaxial socket
(standard TV aerial connector), and a piece of 6 way ribbon cable. This
splits, 4 wires go to a 20 pin 2-row IDC header socket (presumably BBC
User Port, the connections would then be +5V, Ground, and 2 lines for I2C
SCL and SDA). The other 2 wires go to a plug to fit the BBC's power
outlet socket, to get 12V.
Inside there's a single PCB with a TV tuner module mounted off one edge.
The PCB contains a TV IF strip, CITAC (Computer Interface for Tuning And
Control) chip (to select the TV channel under computer control), and a
standard Teletext chipset (SAA5240 based IIRC).
Does anyone know anything about this unit, and more importantly, anyone
know where I can get the software to use it (it's certainly not
compatable with the Acorn Teletext unit).
-tony
