Looking for an Amiga 8375 Agnus IC (Amiga 600, Amiga 500 Plus.) NTSC is
what I have now but the PAL version might work.
Also interested in an Amiga 600 motherboard, can deal with it if bad caps
and cap damage.
: Ethan O'Toole
I picked up a couple of 9GB Seagate Elite SCSI disks the other day (model
410800N, 1995-vintage but 5.25" FH units).
Both drives spin up, both pass r/w tests successfully. On one unit, the
spindle motor sound is constant. On the other, however, it makes a sound
that I can best describe as "reverse surging", where every 5 seconds or
thereabouts there's a very brief lowering in tone before the "normal" sound
Anyone familiar with the Elite range know if "some of them just do that",
or if it's likely to be some form of fault (which may only get worse)? I've
never encountered a disk which does this before; my ear's not detecting any
kind of speed increase prior to the decrease (and I don't know if that's
what's really going on or not), but that's what my brain wants to think is
happening. However, if the speed really was fluctuating to the point that I
could hear it then I'm surprised that I'm not getting read/write problems.
I dumped almost 50 TU58 tapes. They were given to me by an ex DEC FS
Most of them are various 11/750 diagnostics. The tapes or not the official
DEC TU58 tapes but home brewed tapes used in FS so there might not be an
exact match to existing lists of official tapes. But they might be useful
I have seen diags for CI 750, DW750, RH750, DT07, Various Ethernet, UDA50,
TK50, DZ32, DMF32, DH11 and some more standard 11/750 MIC, DPM tests and
Then there were some 11/730 tapes. Console and two diag tapes.
I collected everything in a google-drive-folder
This folder also contains some older dumps I have done. Both DECtape and
DECtape II. All dumps are aggregated into a document trying to give a hint
on what the dump contains. Beware that some dumps failed to read correctly
and are just partial. But it should hopefully be clear from the file size.
I?ve got some adhesive backed industrial felt that I punch with a leather punch. I?ve replaced many of those pads on 8? and 5.25? drives and the felt pad works well. Shoot me an email and I can send you a few pads if you need.
I recently acquired a HP 9000 E45.
Unfortunately, it came without the console MUX panel and cable. I was lucky
to find an ADP II (5062-3054) in my "pile of useful stuff", but sadly, the
78pin to DB9 cable is missing.
The part number of the cable is 5060-3074 though there might be others that
work (5062-3074 is mentioned a few times in the HP forums, but not in the
manual so I'm not 100% certain it's the right cable).
Does anyone have a spare cable or an ADP or DDP with the cable they would
let go for a reasonable price? Or have one and could tell me which 9 out of
those 78 pins go where on the DB9 connector?
I searching for a scan or copy of the ROS listing of a IBM 3705 or
Amdahl 4705 REMOTE.
I all ready have the local single- and multi-channel attached versions,
but still missing the remote one.
Anyone who can? help me ?
I for one was thrilled to see that there will be x86_64 hobbyist licenses for VMS. I have an emulated VAX on a Raspberry Pi (I don?t know if my 11/730 works, but I doubt it?it?s nowhere near a 220V power supply and it?s not been much of a priority, and I have a VAXStation 3100 that doesn?t pass POST even with a freshly-burned ROM) running OpenVMS 7.3, and a real AlphaServer 800 running 8.4.
I mean obviously the NEXT thing to do is start bugging VSI for ARM support?given that the OS runs on VAX, Alpha, Itanic, and x86_64, how much really crucial and hard-to-port assembly can be left in it??and given the way datacenters are trending, it might not even be a commercially stupid move. I want to run VMS on my phone (or my next Mac). Doesn?t everyone?
> From: Jay Jaeger
>> 2--M7134 KT24 Memory map
> M7891 UNIBUS Memory (256K, I think, presumably addressed for 0).
If that's all the memory you have, the KT24 isn't really doing anything
(well, monitoring power; holding boot PROM's; etc). Is your MS11-L configured
to be EUB memory, then? If no KT24 is plugged in, the CPU detects that there
isn't one there, and permanently, statically maps the UNIBUS straight across
to the bottom 256KB of EUB space. (Presumably a low-cost option for the /24.)
Although the 'straight across' mapping only applies to UNIBUS->EUB cycles,
not EUB->UNIBUS cycles, such as those from the CPU; but the TM says [pg 2-31
in the 003 version] that if E124-S6 is OFF, "the lower 18 bits of every
address go to the UNIBUS", which implies that when OFF, UNIBUS memory appears
at 0 in the CPU's address space. So it should work as UNIBUS memory, with
E124-S6 OFF; it would be interesting to verify that. The TM also says (pg.
2-40) "systems with UNIBUS memory ... require changes to be made to the
mapping jumpers [on the KT24]".
> Let me know if you want me to go thru the process of
> 2) Pull the boards and document
What kind of box is your -11/24 in, a BA11-A, or BA11-L?
If the latter, I'd be really grateful for some closeups of the interior, so I
can put mine back together, and do some of these experiments. (Yes, yes, I
know I should have taken pictures before I took it apart; I was just
starting, and was going by how we used to do things, back before there were
digital cameras.) I could probably work it out by staring hard, and thinking
harder, along with the prints, but photos would be a lot easier! :-)
If it's a BA11-A, I'm still trying to get an image of the special power
adapter used to turn the bus bar of the BA11-A into the 6/15 pin Mate-N-Lok
connectors used by the -11/24 backplane.
I've recently come into a really nice VT-320 terminal, but am having a
hell of a time getting it to communicate with the outside world (mainly
my PiDP-8 and PiDP-11). I've gone to the lowest common denominator,
using a USB serial cable and terminal software to verify everything is
working before digging into making simh output to a serial terminal.
The VT320 only has the DEC-423 MMJ, no RS-232.
I found a number of guides that show how to wire up the DEC-423
connector to a DB-9 RS-232, but so far I have struck out. It will
receive text from the remote computer, but I do not see anything on the
remote when I type on the VT-320.
I have loop backed the TX to RX on the VT-320 terminal, and it does
work. TX=RX Baud rate? in the VT320 settings, and the data bits, parity,
& stop bits match.
DEC-423 (lock tab bottom right, pin one on the left, 6 on the right)
For a cross over cable:
423 #2 goes to DB9 #2 (TX to RX)
423 #3 & #4 to DB9 #5 (TXD- and RXD- to GND)
423 #5 goes to DB9 #3 (RX to TX)
423 #1 to DB9 #6 (DTR to DSR)
423 #6 to DB9 #4 (DSR to DTR)
Does this look like it should work? It does leave DB9 RTS and CTS