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MicroPDP-11 - some questions

Quite a few, yes; I've gotten a stack of them with just about every C64 I've rescued, and hung onto the ones that weren't legit game disks that would increase the resale value ;)
 
Lesson for the day: if you are writing a floppy disk with an unusual drive geometry via a special utility, and attempt to write to it a disk image residing on another, ordinary-geometry floppy disk connected to the same disk controller, you are likely to spend much longer than you really care to admit trying to figure out why you keep getting read and write errors :/

On the bright side, PUTR does work, and the PDP-11 now has a copy of DUMP available, so I should be able to set it backing up the hard drive pretty soon.
 
However, I'm having a heck of a time getting DUMP to work. For starters, the (outfile)=(infile)/option syntax doesn't seem to work at all (claims "invalid command.") DUMP/TERMINAL looks like a workable alternate syntax, but it claims "input error" no matter what file or device I tell it. Am I missing something here?
 
Probably best if you post the exact command you're attempting, or better a capture of the entire session from boot.
 
The command I'm trying is "DUMP TT:=LANG.TXT/X" (trying to get a Radix-50 dump of a small test file.) This results in the "invalid command" error message. "DUMP/TERMINAL/RAD50 LANG.TXT" doesn't give the "invalid command" message, but it gives the "input error" message instead. Neither get so far as to actually dump anything. The same thing happens when I specify a device instead of a file as the input.
 
I'm not the best RT guy, and I have to guess how you booted because you didn't post the session capture, but....

Try:

  • "R DUMP"
  • Prompt should change to "*". If error, it didn't find DUMP.
  • "LANG.TXT/X/S:1"

Note: LANG.TXT would need to be in your default directory.


Octal Disk dump [if you boot DU0:] might be:

  • "DU0:/N/W/S:0"
  • "^C" to stop it.
 
Okay, even after looking through the RT-11 manual I can't see what I'm doing wrong, but it keeps coming up with the same errors. Here's a transcript, from boot through a last directory listing. As you can see, DUMP.SAV is present and will run, but won't actually dump anything...

Code: 
KDF11B-BE ROM V0.9
    256 KB MEMORY

9 STEP MEMORY TEST
  STEP 1 2 3 4 5 6 7 8 9
TOTAL MEMORY ERRORS =     0
CLOCK ENABLED

TRYING UNIT DU0

BOOTING FROM DU0
RT-11XM (S) V05.01B 

.DUMP/TERMINAL/NOASCII DU0:
?KMON-F-Input error SY:DUMP.SAV

.DUMP/TERMINAL/NOASCII LANG.TXT
?KMON-F-Input error SY:DUMP.SAV

.R DUMP
?KMON-F-Input error SY:DUMP.SAV

.DUMP
Device or file? LANG.TXT
?KMON-F-Input error SY:DUMP.SAV

.DIR SY:
 
ST1   .COM     1                 ST2   .COM     1           
ST3   .COM     1                 ST4   .COM     1           
ST5   .COM     1                 BEGIN .BAK     1           
NUL   .        1  08-Apr-86      STARTX.M13     1           
RLKCHG.TSD     9  10-Sep-86      DELUX .COM     1           
BASIC .COM     1                 STDRD .COM     1           
DAFT  .SAV    15  30-Jul-85      RIFLE .SAV    16  29-Jun-81
DUPSC .SAV     3  30-Jul-85      DAFT2 .TSD    15  25-Jun-85
SPOOLR.TSD     5  25-Jun-85      HOMFIL.DDF     9  04-Mar-83
FIXUP2.SAV     9  01-May-85      CLRRP .SAV     8  17-Feb-84
DAFT  .TSD    14  25-Jun-85      TERMID.SAV     3  07-Mar-84
MAILTM.DDF     2                 LINK  .SAV    41  21-Feb-80
C3PMCT.SAV     6  16-Aug-83      LQX   .SYS     3           
DL1   .COM     1  02-Aug-82      HELPER.DDF     3  06-Jul-83
WHO   .SAV     3  30-Jul-85      CCX   .SYS     5  07-Jul-84
SIGIDX.DDF    32  28-Mar-90      TNID  .TSD     2  25-Jun-85
INTUPD.SAV    13  10-Sep-85      SPOOL2.TSD     5  25-Jun-85
DU    .SYS     4  12-Mar-83      TRNIDX.DDF     5  04-Mar-83
RGHNAM.DDF    25  04-Mar-83      AUXFIL.DDF    47  17-Jun-81
AUDPR .TSD    46  27-May-87      C3PMHD.SAV     5  16-Aug-83
DTRINX.SAV    17                 REDUCE.SAV     9  16-Apr-80
CHGXT1.DDF    12  17-Mar-83      DRGCAU.TSD    49  21-Jul-88
DUIDX .SAV    17  21-Oct-88      LABEL0.R04    36  13-Apr-83
SET   .RIF     1  15-Jun-83      STOP  .RIF     1  16-Jun-83
RELINK.TSD    40  22-Jul-88      DRGMEN.TSD    28  21-Jul-88
DAFTV .TSD    31  19-Dec-88      LPX   .SYS     3           
DIGICL.JOE    14  09-Dec-87      WRTINS.SAV    13  30-Jul-85
CLMEN .SAV     2  05-Jun-84      DDFWC .TSD    22  02-Aug-85
BCKUP2.SAV     3  26-Jul-85      PRUP  .SAV    16  22-Jul-88
DETRX .TSD     2  12-Mar-84      DUMEN .SAV    10  30-Jul-85
SYSLIB.OBJ    47  31-Aug-81      NDCIDX.DDF   235  30-Mar-90
RSET  .SAV     2  12-Feb-87      MRIFLE.SAV    16  29-Jun-81
MENU  .SAV     2  30-Jul-85      DIBOL .OBJ   123  16-Apr-80
TDIBOL.OBJ   117  31-Aug-81      TR1SAV.DDF     1           
AR    .COM     1                 TPMEN .SAV    16           
WHO2  .SAV     4  30-Jul-85      DLX   .SYS     5  08-May-84
SRCCOM.SAV    13  21-Feb-80      RGIDX0.DDF    13  24-Mar-83
HOMXT1.DDF    26  04-Mar-83      HOMXT2.DDF    26  04-Mar-83
RCNINX.SAV    23  29-Jul-85      BYE   .TSD     8  16-Apr-80
LOOP  .SAV    19  30-Jul-85      W     .SAV     4  05-Jan-84
CTLFIL.DDF     7  04-Mar-83      DDFSB .TSD    22  30-Jul-85
C3PMCP.SAV     9  16-Aug-83      NUR   .COM     2           
CL    .COM     1                 BAS   .COM     7           
DDFRC .TSD    22  30-Jul-85      DUX   .SYS     4           
DL1DRG.SAV    25  06-Feb-86      DDFUSG.TSD    20  21-Aug-86
VBR   .SAV    24  12-Mar-85      DIGICL.SAV    14  09-Dec-87
WRBILK.TSD     3  03-Mar-88      M11BR .SAV    10  30-Jul-85
SNMIDX.DDF   434  30-Mar-90      BLD   .SAV    12           
TAPLT .SAV    13  18-Nov-88      START .TSD    13  25-Jun-85
TRNFIL.DDF   563  28-Aug-90      RECON0.DDF    79           
RECIX0.DDF    40  11-Jun-91      STRXT2.DDF    11  20-Jul-83
DNMIDX.DDF   137  28-Mar-90      LABEL0.N02    36           
LABEL0.R03    36  23-May-83      LABEL0.R02    36           
LABEL0.N01    36                 DATDIC.DBS    50  10-Feb-83
DATDIC.IDX    58  10-Feb-83      INTCK .SAV    23  30-Jul-85
PATINX.SAV    18                 MAILIX.DDF    35  13-Jun-83
SIPP  .SAV    20  31-Mar-81      SRTMEN.SAV    20  22-Jul-88
MRIFLE.COM     1                 RXSHUF.SAV    22  30-Jul-85
TPINS0.DDF   446                 DDFNDC.TSD    20  30-Jul-85
SIGINX.SAV    18  30-Jul-85      RLKRCN.TSD    14  10-Sep-86
DU0IN0.VID     1                 LABEL0.N04    36  13-Apr-83
DDFMS3.TSD    22  02-Aug-85      WRTTPG.SAV     3  30-Jul-85
VRSION.DDF     1  26-Jan-89      SWAP  .SYS    26           
RCNEW .SAV    24  29-Jul-85      ARMEN .TSD    26  08-Dec-88
DDFMAR.TSD    87  01-Feb-84      FIXUP1.SAV     4  01-May-85
MENU  .TSD    21  13-Oct-88      LABEL0.R05    36  18-Apr-83
EODAY .OLD    40  13-Oct-88      EDIT  .SAV    19  21-Feb-80
RXIDX .SAV    21  30-Jul-85      DTRDEL.SAV    45  11-Nov-88
DDFTPL.TSD    24  08-Oct-86      DDFDP6.TSD    21  02-Aug-85
BACKUP.SAV    16  25-Aug-83      RGIDX .SAV    20  30-Jul-85
MAILTX.DDF   100  13-Jun-83      HALT  .SAV    27  30-Jul-85
DDINQ .SAV    22  30-Jul-85      DDFDPA.TSD    21  02-Aug-85
SPLFIL.DDF    51  29-Apr-83      DAFTV .SAV    32  19-Dec-88
RX3PM .SAV     2  19-Feb-88      LABEL0.R06    36           
TSD   .COM     1                 RTEXIT.TSD     8  16-Apr-80
DUTIL .SAV    17  30-Jul-85      C3PMSP.SAV     5  16-Aug-83
SETSIZ.COM     1  15-Jul-83      RT11XM.M13    93  14-Sep-84
DRGCLS.TSD    49  21-Jul-88      DIR   .SAV    19  07-Mar-84
STARTS.COM     1                 RESORC.SAV    22  07-Mar-84
ARCOV .TSD    23  19-Feb-88      TRTFIL.DDF   340  04-Mar-83
PROPRT.TSD    59  26-Sep-88      DRGPR2.TSD    62  24-Oct-88
SPLIT1.SAV    11  03-Mar-88      PKXT  .SAV    15  25-Jul-88
MTX   .SYS     9  10-Aug-88      INTUP2.SAV    34  10-Sep-85
C3PMFT.SAV     3  16-Aug-83      CMENU .SAV    19  21-Jul-88
LABEL0.R00    36  02-Mar-84      DDFINS.SAV    22           
DDFVA .TSD    22  02-Aug-85      MSX   .SYS    11           
SCFIL .DDF     1  30-Dec-83      MAILIM.DDF     2           
MAHMO .TSD    78  18-Mar-86      MAHM1 .TSD    78  18-Mar-86
NURMEN.TSD    29  30-Sep-87      RECON .DDF    24  04-Mar-83
UPOINT.SAV    26  22-Jul-88      WRBILA.TSD     2  03-Mar-88
RCMEN .TSD    24  29-Jul-85      ABSLOD.SAV     2           
HMO   .TSD    75  08-Jul-88      ARNHR .TSD    75  24-Apr-87
STRFIL.DDF    26  30-Mar-90      BINCOM.SAV    10  21-Feb-80
RT11SJ.SYS    71  04-Aug-83      TPTAP .TSD   197  22-Dec-88
TPT058.KE2     1  25-Feb-90      UPCHG .TSD    73  24-Apr-87
JOIN1 .SAV    12  03-Mar-88      JOIN2 .SAV    16  21-Jul-88
M3PM2 .SAV    19  03-Mar-88      SJMEN .SAV    32  03-Mar-88
SPLIT0.SAV    26  22-Jul-88      STRMNT.TSD   164  22-Jul-88
STRMNT.SAV   165  22-Jul-88      WRBILF.TSD     9  03-Mar-88
PRCUP2.SAV    49  07-Feb-89      RXLST .SAV     7  15-Mar-88
TPT064.KE2     1  29-Apr-90      TPT047.KE2     1  20-May-90
HELP  .BAS     1  08-Jul-82      RXIDX0.DDF  1915           
DIAG00.DDF     1  23-May-83      DTRFIL.DDF   518  04-Mar-83
CHGFIL.DDF   586  04-Mar-83      SIGFIL.DDF   367  04-Mar-83
FAMFIL.DDF  1213  04-Mar-83      BAS8K .SAV    55  28-Jan-83
DIGDAT.DDF     1  13-Nov-90      FORLIB.HLP     1  14-Jun-92
PFILE0.004    33  13-Nov-90      111390.DDF     2  13-Nov-90
RFLFIL.DDF  3321  13-Nov-90      BASIC .SAV    56  28-Oct-80
BASICS.SAV    54  30-Apr-81      COVFIL.DDF   635  04-Mar-83
RXFIL0.DDF 11348                 UTIL  .OBJ   154  24-Mar-83
WHO   .COM     1                 DL0IN0.VID     1           
CIX   .SYS     3  22-Jun-88      D     .COM     1  19-Sep-84
R     .COM     1                 QICSAV.ABS    35           
QICSAV.DOC   160                 W3    .COM     1           
W2    .COM     1                 ZEROED.ZZZ     1           
LABEL0.R01    36                 3PM   .BAK     1  13-Dec-84
MSX   .T25    10  12-Mar-85      WRTINS.TSD    12  29-Jul-85
DDFINS.TSD    21  30-Jul-85      COMAND.SAV    12  06-Jan-84
TDATIM.TSD    32  22-Jul-88      DDFREM.TSD    19  28-Aug-86
SPLIT2.SAV    14  22-Jul-88      CLRFIL.SAV    34  24-Mar-83
DRGINX.SAV    30  21-Jul-88      MERGE .TSD    65  18-Sep-86
DRGDEL.SAV    46  11-Nov-88      RFREM .TSD    46  09-Oct-86
RT11XM.SYS   101                 INTMN .SAV    38  30-Jul-85
KEX   .SAV    46  20-Dec-85      ARCOD .TSD    20  25-Jun-85
AGRPT .TSD    41  30-Jun-86      RFM   .SAV    11  30-Jul-85
DTRPRG.SAV    44  11-Nov-88      FMTDD .TSD    28  29-Jul-85
RELINK.SAV    41  22-Jul-88      DDFCOV.TSD    19  30-Jul-85
DRGPR1.TSD    50  21-Jul-88      RCH   .SAV    19  13-May-88
SPOOL .TSD     8  30-Jul-85      FIXCHG.SAV    30  13-May-88
CHECK .SAV    27  30-Jul-85      INTCV .SAV    19  10-Sep-85
DATIM .SAV    34  22-Jul-88      INMULT.SAV     3  25-Oct-88
RCBIL .TSD    21  29-Jul-85      ODT   .SAV     8           
SETP2 .SAV    37  22-Jul-88      DDFBC .TSD    21  02-Aug-85
RCCLR .TSD    31  02-Mar-87      TPCPY .SAV    33  06-Mar-84
PURGE3.TSD    48  19-Feb-88      RCSCH .TSD    28  29-Jul-85
RCINQ .TSD    42  29-Jul-85      RCPST .TSD    43  27-Sep-85
RCNEW .TSD    23  29-Jul-85      BILRCP.TSD    28  17-Nov-88
RCARB .TSD    32  29-Jul-85      RCMRG .TSD    26  29-Jul-85
RCPAY .TSD    29  30-Sep-87      LUPFIX.SAV    40  29-Jul-85
DEXPND.TSD    38  21-Jul-88      CBR   .SAV    28  19-Jan-87
HOMMNT.TSD    45  25-Sep-85      DRGPRG.SAV    45  11-Nov-88
COMSEL.SAV    10  30-Jul-85      RXORG .SAV    21  25-Nov-85
CTLMNT.SAV    36  21-Jul-88      PURGE1.TSD    35  29-Jul-85
RXSRT1.SAV    27  25-Aug-83      RTSORT.SAV    36  13-Jan-81
DDFMS2.TSD    22  02-Aug-85      RXINF .SAV    15  29-Jun-88
DTRUSG.TSD    61  21-Jul-88      AUDIT .TSD    57  18-Oct-88
PURPRT.TSD    52  04-Feb-88      EODAY .SAV    40  13-Oct-88
TPGRP .SAV    39  06-Mar-84      XMTSD .SAV    44  08-May-86
SETP2 .TSD    36  22-Jul-88      TRACE .SAV    49  22-Jul-88
C3PMMS.SAV    21  16-Aug-83      MISDP2.TSD    72  08-Aug-85
MISDP3.TSD    70  08-Aug-85      SETP  .TSD    44  22-Jul-88
FIXCH2.SAV    29  13-May-88      PRTSP .TSD    44  22-Jul-88
DRGMFG.TSD    28  11-Nov-86      POST  .TSD    82  19-Apr-88
HMO2  .TSD    77  03-Jun-88      CVYTD .SAV    39  24-Dec-85
MFGMN .SAV    38  02-Nov-88      DICOMP.SAV   151  30-May-84
DUSFC .SAV    34  21-Jul-88      DL1FIX.SAV    54  29-Jul-85
DTRMRG.SAV    46  11-Nov-88      HELP  .SAV   136  07-Mar-84
LABEL .SAV    95  21-Jul-88      SPBIL .TSD    88  16-May-87
DRUTLP.TSD    41  23-Oct-87      MISC  .TSD    68  22-Jul-88
BATLBL.TSD   127  29-Jul-85      DGXWRK.ZZ    508  02-Apr-90
TPCAT .SAV    48  06-Mar-84      DRGMST.TSD    47  21-Jul-88
SETP  .SAV    44  22-Jul-88      TPED3 .SAV    82  20-Jan-86
CPR   .TSD    24  05-Aug-85      EXPAND.TSD    45  21-Jul-88
PDTUSG.TSD    35  30-Sep-87      VA    .TSD    78  08-Aug-85
SUD   .RTS    29  02-May-85      PIP   .SAV    30  07-Mar-84
DUP   .SAV    45  07-Mar-84      ERMSG .TXT    97  30-May-84
PRCUPD.SAV    17  22-Jul-88      RCBLD .TSD    68  29-Jul-85
RCPRT .TSD    32  29-Jul-85      RCREC .TSD    53  29-Jul-85
RCUCR .TSD    52  29-Jul-85      TPLST .TSD    45  26-Feb-87
CTLFIX.SAV    42  11-Sep-86      NPPRT .TSD    49  13-Apr-87
SETP3 .SAV    33  22-Jul-88      DDFUTL.TSD    21  31-Jul-86
STATUS.TSD    25  02-May-80      MAIL  .TSD    54  11-Sep-86
USRIDX.DDF    55  16-Jun-89      X     .TSD     8  16-Apr-80
REPORT.TSD   119  25-Jul-88      CTLMNT.TSD    35  21-Jul-88
STMNT .TSD    45  29-Jul-85      DDFAR .TSD    21  30-Jul-85
TRBAL .TSD    51  25-Jun-85      CHINT .TSD    44  19-Nov-85
DRGXT1.DDF    63  03-Apr-90      CLSS3 .TSD    54  21-Jul-88
STOCK1.TSD    22  25-Jul-88      ALPDPA.TSD    40  28-Nov-88
DDFTR1.TSD    20  30-Jul-85      SETP3 .TSD    32  22-Jul-88
CLMEN .TSD    24  25-Jun-85      DDFTRN.TSD    22  30-Jul-85
CTRNMN.TSD    39  25-Jun-85      STOCK2.TSD    65  27-Oct-88
RLKPRG.SAV    22  11-Nov-88      CVYTD .TSD    38  24-Dec-85
TPED3 .TSD    81  20-Jan-86      RXREG .TSD    78  22-Jul-88
UMW   .TSD    73  04-Aug-88      MNBC  .TSD    75  08-Aug-85
MNHM1 .TSD    74  08-Aug-85      MNHMO .TSD    76  08-Aug-85
MNHM3 .TSD    74  08-Aug-85      MNDPA .TSD    75  01-Aug-85
MNHM2 .TSD    73  08-Aug-85      BR    .SAV    28  07-Mar-87
LABEL .TSD    94  21-Jul-88      IHP   .TSD    74  30-Dec-86
DRGONE.TSD    49  11-Nov-86      PURGE4.TSD    32  18-Jun-87
BILL  .TSD    27  06-Dec-88      BR    .T25    24  29-Jan-85
ST2   .TSD    94  02-Mar-87      DRGINT.DDF   239  10-May-86
DIGICL.OLD    14  22-Jun-88      3PM   .COM     1  11-Mar-87
DDFPMF.TSD    23  20-Oct-88      DRGFIL.DDF  2051  02-Apr-87
NULDIR.DAT     1  07-Mar-87      DRGGEN.TSD    48  21-Jul-88
SRTMN1.SAV    24  22-Jul-88      RXAUDT.DDF    61  12-Dec-87
PDGUSG.TSD   103  11-Jun-87      UPDMEN.SAV    10  07-Feb-89
FORLIB.COM    14  14-Jun-92      FORMAT.SAV    15  20-Dec-85
BACKUP.BAK     1  29-Jun-88      BACKUP.COM     1  30-Jun-88
RX    .OLD   810  19-Oct-88      LANG  .BAK     1  02-Mar-89
BIL3PM.PTS     2  20-Mar-90      BILADD.PTS   415  20-Mar-90
DEXPND.SAV    39  21-Jul-88      RECRG0.DDF    16  16-Jun-89
PRTSP .SAV    44  22-Jul-88      RLKOE .TSD    13  25-Jul-88
PMINS .SAV     8  15-Mar-88      LANG  .TXT     1  14-Jun-92
AUTHBL.DDF     1  02-Mar-90      BILKEY.DDF    27  02-Mar-90
BASICD.SAV    60  28-Jan-83      TRNMNT.SAV    55  24-Jun-88
CMTFIL.DDF   299  21-May-90      RECAP .TSD    51  23-Oct-87
TRACE .TSD    49  22-Jul-88      TPT005.KE2     1  04-Mar-89
TPT000.KE2     1  04-Mar-89      AGEIT .TSD    55  23-Oct-87
DLYED .TSD    73  21-Jul-88      INVOI .TSD    84  22-Apr-88
DRGMRG.SAV    48  11-Nov-88      DIGC2 .SAV    33  16-Jul-89
DIGC1 .SAV    11  16-Jul-89      PRUP2 .SAV    46  22-Jul-88
DUTNC .SAV    45  21-Jul-88      TPT053.KE2     1  30-Jul-89
TPTB4 .KE2     1  08-Oct-89      TPTC0 .KE2     1  08-Oct-89
TPTB9 .KE2     1  08-Oct-89      DUPRD .SAV    45  25-Jul-88
EXPAND.SAV    46  21-Jul-88      DRGPRC.TSD    51  21-Jul-88
DRGXT2.DDF   610  02-Apr-87      OLDLIB.OBJ   202  09-Mar-81
COVTMP.DDF    21    -BAD-        DUMP  .SAV     5  20-Dec-85
EODAY .COM     1  10-Nov-90      RX    .TSD   815  13-Jun-89
KED   .SAV    47  20-Dec-85      RXINF .DAT     6  26-Jul-91
MSG3PM.DDF     1                 D00XXX.COM     1           
TSDXXX.DDF     1  29-Jul-91      BEGIN .COM     1           
STARTX.BAK     1                 STARTX.COM     0           
TPTD2 .KE2     1  04-Aug-90      PATFIL.DDF  4157  16-Oct-90
PNMIDX.DDF   793  11-Jun-91      BILFIL.PTS   417  13-Nov-90
FORTRA.SAV   204P 09-Mar-81      
 449 Files, 46594 Blocks
 13818 Free blocks

.
 
I don't see LANG.TXT in that directory listing. Should it be? I am not much with RT-11. The error message description that the RT-11 doc has for
this error isn't very useful, but I will paste it here.

?KMON–F–Input error <dev:filnam.typ>
Explanation:
1. An input error occurred while the file specified in an R, RUN, GET, FRUN,
or SRUN command was being read.
2. An error occurred while block 0 of the handler file was being read during the
INSTALL command.
3. An error occurred during the execution of a SET command for a handler.
User Action: See the procedures for recovery from hard error conditions listed in
Chapter 2.
 
On my RT11 V5.1 system DUMP.SAV is 9 blocks, not 5 blocks. The command:

DUMP/TERM DUMP.SAV

works just fine. My guess is your disk (or its directory) has some corruption.
 
No, it's there, and it can be read by other commands (i.e. TYPE LANG.TXT.) So can DU0:, for that matter: COPY DU0: TT: reads and dumps the hard disk contents on the terminal perfectly fine. The problem seems to be with DUMP, but I'm not sure what the problem is. It seems to load far enough that it can prompt for an input file if one isn't supplied, but it fails after that.

About the only thing I can think of is that I got this copy of DUMP.SAV from the SIMH RT-11 v5.3 disk image, and maybe it doesn't get along with earlier versions of the OS; unfortunately, I don't have a copy of RT-11 v5.01, and I don't know where to get one.
 
AK6DN said:
On my RT11 V5.1 system DUMP.SAV is 9 blocks, not 5 blocks. The command:

DUMP/TERM DUMP.SAV

works just fine. My guess is your disk (or its directory) has some corruption.
Click to expand...
Oh, hey, you're absolutely right. Guess PUTR didn't copy it correctly. I'll give it another try.

Edit: *FACEPALM*

I forgot to set the copy mode to binary, even after reading about it in the PUTR documentation...it now works.
 
Last edited:
Indeed :D

Interesting new lead on the one card; I looked on the back of the PCB, and there's a little Bell logo. Poking around on Google, I see some discussion of Southwestern Bell equipment with CST-xxxx part numbers, so I'm suspecting it's actually a Bell part, which means it's probably telecom equipment after all. I'll have to drop 'em a line and see what I can find out.
 
Well! Major score at the recycle center today! Spotted a "MicroVIP" by some company with a name like "American Data Systems" or something. It looked suspiciously like a MicroPDP-11, so I opened it up for a look - indeed it was. The owner said that it came from the EPA, who wanted it destroyed, but decided that I could at least salvage the cards from it.

What a haul. For starters, it's got a KDJ11-AA (LSI-11/73 with an 8KB cache) and accompanying M7195 serial/ROM/128KB RAM board. That alone would be a find, but in addition, there's a pair of 2MB DataRAM memory cards, an LP-11 printer card (is this Centronics? It uses a Centronics-style connector,) and two controller cards that I can't identify (one of which appears to be a Winchester + SCSI controller.)

Only problem is, now I have to run back there tomorrow to see if I can get the backplane, because I don't know if the one in my MicroPDP-11 is 22-bit or not (the CPU is, though.) Crossing my fingers...
 
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All BA23s have Q22 backplanes. Yes, you did good there. Even if the rest is gone, you got the best parts.

As for the two cards you can't identify, just tell us what is on the handles or any model number stickers and we can tell you what they are. If one is a SCSI controller after all, you hit the jackpot.

Lou
 
Yeah, it looked from what I could find like mine was a Q22, I just wasn't sure. I'll still probably go back for the backplane, though, since one of the two controller cards has a supplemental card over the drive cage that I didn't grab (I was running short on time before I had to be at work.) Luckily, I got them to set it aside for me and not scrap it immediately, so that shouldn't be an issue.

Nothing is written on the handles of either, they're the metal levers and not the plastic knobs. The first card is marked "RTI-Q BUS BD., ASSY NO. 70001-61280 REV N," but the back side says "PART NO. 70001-21280 REV. G." It's constructed entirely of 74-series logic and PROMs, and has a 10-wire and a 20-wire ribbon cable going out to a back-panel DB-25 male connector, the PCB for which is labeled "DS ICIS LINK CONN., ASSY NO. 70001-61450 REV A." The 10-wire ribbon is labeled "P2 TO MXV-11 (DSTA)." There's also six of some kind of apparently single-contact plug connector (circular, about 3/16", in a square block; never seen this type before so I have no idea what it's called,) arranged in in/out pairs between the two cables.

The second card, the one that I suspect is a SCSI controller, has a USDC logo on the PCB. The front side is marked "10-1108-04 ASSY, S/N 74089, REV C" - all the italicized digits being scratched in by hand on a little metal area reserved for hand-labelling. The back is marked "36-1108-03 REV. B," with none of it silk-screened at all - it appears to have been stamped or stencilled on with white paint. This one's also mostly 7400 logic and PLAs, but does have an Intel 8086-2 and a matching 8259 PIC, 4KB SRAM, a couple of EPROMs, and an AMD AM9517 DMA controller. It has a 50-pin ribbon connector that goes to that supplemental card I mentioned.

I did a little looking around on my own this afternoon and didn't find anything, but if there's anywhere that's a better resource than Google, it's here ;)
 
Please snag the BA23 RQDXn signal distribution board also. I think it's screwed to the back of the backplane, so it will probably come anyway. Also be sure to snag the power supply. No print sets have ever turned up for this power supply and you definately want to have a spare.

The first board sounds like some kind of bus interface to some other equipment. It will probably be a good future source for 7400 logic for repairing other stuff. If it used DC0xx bus interface ICS, they will definately be useful for some future repair.

The second board sounds very interesting. I do not recognize "USDC" or any of the other numbers. However, this is very likely an MSCP controller. Get the supplimental card and tell us what you see on there. The fact that the supplimental card is mounted by the drives is a good sign. I'd love to know what other connections are on the supplimental card.

Lou
 
Yeah, I'll get all the boards. I don't know if they'll let me have the power supply, considering the EPA thing, but I'll try.

USDC, from what I gathered on Google, made a few disk/tape controllers with similar model numbers, but I couldn't find anything for that specific model number. It was hooked to a tape drive, though, so I'm guessing it's one of theirs. From what I recall off the top of my head, the supplemental card had connections to an ST-506 hard disk and the tape drive, which had a single very wide connector that I think may have been SCSI? I dunno. It also connected to the machine's front panel directly, so I kind of wonder if the supplemental card isn't a full-on replacement for the BA-23 signal distribution board. There was also another serial port connector that went to either the front panel or the supplemental card, can't remember which.

I'll try to grab as much of it as they'll let me tomorrow, but I'm not sure how much I'll get away with. Guess we'll see.

By the way, any idea if the ROMs for the CPU will boot from my RQDX1 as-is?
 
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