> I can't say that I've ever observed that, but then, I probably never
> looked for it either. 80 bytes starting with HDRx, etc. is a pretty
> good indicator of the nature of the block. I've seen lots of tapes
> with 81-character records, however. (Univac 36 bit systems for
> example).
Drat
On 1/9/21 4:23 PM, Jon Elson via cctalk wrote:
> On 01/09/2021 04:59 PM, Dennis Boone via cctalk wrote:
>> Jon,
>>
>>
>>
>> Yes, you could. The Burroughs doc seems to say the FM is supposed to be
>> there between every group of labels and the preceding or following data,
>> though.
>>
> Well, then
This might be a reasonable stand-in for now:
https://www.millsupply.com/knob-fan-speed-grumman-olson-53777.php?p=324629
> On Jan 9, 2021, at 4:25 PM, Fritz Mueller wrote:
>
>
>> On Jan 9, 2021, at 3:54 PM, Bill Degnan wrote:
>> 3d-printable?
>
> It would seem so. I don’t have one to measure
> On Jan 9, 2021, at 3:54 PM, Bill Degnan wrote:
> 3d-printable?
It would seem so. I don’t have one to measure, though, and I haven’t seen any
3d models online yet. I could probably eyeball it, but anybody have one and
care to measure?
Does the original have a brass bushing?
On 01/09/2021 04:59 PM, Dennis Boone via cctalk wrote:
Jon,
Yes, you could. The Burroughs doc seems to say the FM is supposed to be
there between every group of labels and the preceding or following data,
though.
Well, then the only thing you can do is Magna-See or one of
the dry magnetic v
3d-printable? I made an IMSAI paddle with my 3d printer. Works great.
On Sat, Jan 9, 2021, 6:11 PM Fritz Mueller via cctalk
wrote:
> Hi folks,
>
> I’m working on an 11/34 at the moment, with the programmer’s console, and
> it is missing its front panel power control knob. I think it is the sa
Hi folks,
I’m working on an 11/34 at the moment, with the programmer’s console, and it is
missing its front panel power control knob. I think it is the same one used on
the 11/04? Anybody have a spare in their parts stock that they’d be willing to
part with?
(I’m also missing the plastic hal
Jon,
Thanks for your thoughts.
> Your tape dump looks very much like a classic ANSI tape label format,
> except for the missing file mark after the HDR2 record. Are ALL
> those file marks after HDR2 missing, or just some of them?
Right, and they're supposed to be ANSI69ish, though they are i
On 01/09/2021 03:20 PM, Dennis Boone via cctalk wrote:
Folks,
I've now seen two Burroughs tapes where some of the expected file marks
between labels and file data were apparently missing.
NRZI file marks are only a couple flux changes, drives that
have squelch logic to suppress unstable read
ftp://ftp.intersystems.com/pub/msm/docs/msm43/users.pdf
is another source for a manual. It's the version which Micronetics sold, of
which I heard "Micronetics shamelessly copied DSM-11 practically line for line
to the PC." So the manual is probably close enough to work.
HTH,Dick
Hi again everybody,
Apparently the router program ignores the baud parameter when the
`PBX' option is used (or maybe it is the phase of the moon), so I am
specifying the serial port speed using the DOS `mode' command, before
starting the router.
Here is the output:
| C:\CCMAIL\Router>C:\CCMAIL\R
Folks,
I've now seen two Burroughs tapes where some of the expected file marks
between labels and file data were apparently missing.
I think a reasonable description of these is "Burroughs/Unisys B6x00
'Library/Maintenance' tapes with ANSI-69 labels"
Reading drive is a Cipher GCR Cachetape with
On 2021-01-03 05:18, Jos Dreesen via cctalk wrote:
Hello Jos,
I saw on a German web, that you're planing on a SAGE II remake?
Still toying with it?
Cheers
On Sat, Jan 9, 2021 at 12:08 PM David Gesswein via cctech <
cct...@classiccmp.org> wrote:
> To possibly be clearer the image of the disk was a raw dump of the disk
> taken with the mfm emulator/reader board so it sees all the extra data the
> controller puts on the disk and the bad sectors etc. As
To possibly be clearer the image of the disk was a raw dump of the disk
taken with the mfm emulator/reader board so it sees all the extra data the
controller puts on the disk and the bad sectors etc. As far as I know no
documentation exists of the low level format and revector table etc. For
RQDX3
I'd like to get a Dilog SQ703 I have to work on my microvax, does
anybody know where I can get a copy of the manual?
cheers,
Nigel
--
Nigel Johnson, MSc., MIEEE, MCSE VE3ID/G4AJQ/VA3MCU
Amateur Radio, the origin of the open-source concept!
Skype: TILBURY2591 nw.john...@ieee.org
> On Jan 8, 2021, at 8:57 PM, Eric Smith via cctalk
> wrote:
>
> On Fri, Jan 8, 2021 at 6:17 PM Paul Koning wrote:
>
>> Yes, but also to hide bad blocks. So the difference between a raw sector
>> dump and a SIMH container file is, minimally, the spare sectors. What that
>> looks like depe
Den lör 2 jan. 2021 kl 19:34 skrev David Gesswein via cctech <
cct...@classiccmp.org>:
> This is my info on RD53 sticking heads. Your symtoms match what I have seen
> with this drive.
>
> If the heads are stuck to the rubber bumper the drive will spin back down
> when it finds the heads won't move
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