Does anyone know (of) anyone running/restoring an IBM 7090, early 60s vintage?
I am about to clear out a friend's collection of vintage computer bits and I may find relevant modules and documentation, h/w and s/w.
|| | | | | | | | |
Peter Van Peborgh
62 St Mary's Rise
Somerset BA3 3PD
01761 439 234
|| | | | | | | | |
A quick auction for a collection of 19 TK50 tapes I purchased as a lot
Twelve are original DEC branded / distribution tapes with factory labels.
Cadre and Network research tapes are commercial release.
The remaining four are working sets or backups with hand written labels.
Tapes were stored covered and upright in a disused bedroom for the last
All tapes have write protect enabled.
The tapes look to be in very good condition although I don't have a VAX
or TK50 to check their integrity.
VAX C V3.0 BIN VAXC030,DEBUGMP050 000MRB8183
AQ-NH24B-BE VMS V5.3 BIN DECWINDOWS &S/A BKUP 2-2 000MRB8364
AQ-MI45A-BE VMS V4-V5 BIN MANDATORY UPDATE 000MRB8679
AQ-JP22C-BE VMS V5.0 BIN 000MRB8777
AQ-LX08B-BE VMS V5.0-2 MAINTENANCE UPDATE 000MRB8794
AQ-LC99A-BE VMS V5.0 BIN MANDATORY UPDATE 000MRB8971
AQ-FT37H-BE VMS/WS SFT V4.0 BIN 000MRI1566
AQ-JP22E-BE VMS V5.3 BIN 1-2 000MUB3645
AQ-JP22F-BE VMS V5.4 BIN 1-2 00MRF9843A
AQ-NH24C-BE VMS V5.4 BIN DECWINDOWS &S/A BKUP 2-2 00MRF9843B
AQ-NH24C-BE VMS V5.4 MANDATORY UPDATE 00MRF9843C
AQ-PLWNA-BE VMS DW MOTIF MUP V1.0A MF2701B
CADRE CREV, FREV, CSB 4.0 FOR VAX/VMS TWK2040
CADRE OPT-SM386/V 386 SMARTPROBE SOURCE SOFTWARE V1.1
NETWORK RESEARCH CORP FNS-SUVS-TCP PROD: FNSTG6033
SCA, LSE, C Three tapes - UNKNOWN CONTENTS / backups
STANDALONE BACKUP BOOTABLE DISK - VS200P? 3/8/89
This auction is for all 19 tapes. No cherry-picking. Approximate weight
unpacked is 10-11 Lbs.
Shipping will be specified by buyer. Tapes are eligible for media rate
Please make an offer or direct all questions "off-list" to
jimpdavis at gorge.net.
If by Friday at 23:59 PDT received bids are too low for me to recoup
my original cost, I will list them on Ebay Saturday morning.
Payment is by Paypal only.
On Sun, 29 Jul 2012 18:48:32 +0100 (BST), ard at p850ug1.demon.co.uk (Tony
> Incidnetaslly, I never met a school maths or physics teacher who realsied
I must say I cannot understand how you succeeded in getting such
universally and consistently incompetent teachers. During my year in the
UK in the 5th form, *all* of my teachers were intelligent, clueful,
helpful and sensible. Admittedly, it was a private school (not one of
the expensive and fashionable ones) and may have been able to recruit
better teachers. I don't know if the state schools are generally bad or not.
During some cleaning of the attic I found an old
(and forgotten) project of mine.
It is a sort of printer, build around the back half of
a IBM model 71 typewriter.
>From what I remember, I got this from a thrift shop a long time ago,
I guess I was a little intrigued about it.
It looks like it was modified by a company of some sort (not IBM),
and what they did basically was to cut off the keyboard section
of the typewriter about half an inch from the cover which can be
To be able to use the mechanism, they added a bar with solenoids
which pull the little levers as well as to operate the clutch, advance
one position and do a mechanical CR/LF.
Also an paper roll holder (for teletype paper rolls) was added as well
as a electrical switch & cover plate for being able to close the front.
When I got it, it missed 3 solenoid for some of the little levers,
finding a replacement should be possible, although they will be different
I guess it should be possible to make some sort of interface for it
to let is work as a simple printer.
I was just wondering which company did these modifications. Any idea's?
BTW it runs a little slow, nothing a careful lube job will fix :)
Dit is een HTML vrije email / This is an HTML free email.
Zeg NEE tegen de 'slimme' meter.
While I'm still struggling with the powers supply in the /84, I
decided to also take a good look at the /05. Amazingly, the power
supplies on this one (1972) are 13 years older than those on the /84
(1985), yet their outputs look absolutely perfect. Plugged in the
cards, and it seems to work, apart from one annoying little thing: one
of the front panel switches is bad. I noticed it when I was
depositing, then reading back some data, then took a multimeter to
determine that it's the switch itself that's broken. Cosmetically it
looks ok, but it doesn't work. It's just one of the address/data
switches, all other switches work fine. Are there any replacements for
these switches to be found?
> AFAIK the PPC640 never hard a hard disk. There were a pair of D conenctors
> (DB25 and DC37 I think, I forget the gender) that carried the system bus.
> There is rumoured to be an expansion chassis for it, I've never seen one.
> I also beliecve that US versions diddn't have those connecotrs fitted,
> due to the FCC emissions regulations. I guess it would support an XT hard
> disk controller (with its own boot/BIOS ROM) connected there, but I've
> never seen it done.
I have (with the hard drive fitted internally rather than externally);
the hard drive controller went in the modem bay, and had its bus
connection soldered to the PCB side of the two D connectors aforementioned.
Did you look under paddle switches with surrounds? I think that is what they really are. Mine have an actual C&K number on the side, but I am not able to look at them right now. Anyway, I can contact you off list about this in a week or so.
Camiel Vanderhoeven <iamcamiel at gmail.com> wrote:
>On Mon, Jul 30, 2012 at 8:48 PM, Camiel Vanderhoeven
><iamcamiel at gmail.com> wrote:
>> Hi Again,
>> While I'm still struggling with the powers supply in the /84, I
>> decided to also take a good look at the /05. Amazingly, the power
>> supplies on this one (1972) are 13 years older than those on the /84
>> (1985), yet their outputs look absolutely perfect. Plugged in the
>> cards, and it seems to work, apart from one annoying little thing: one
>> of the front panel switches is bad. I noticed it when I was
>> depositing, then reading back some data, then took a multimeter to
>> determine that it's the switch itself that's broken. Cosmetically it
>> looks ok, but it doesn't work. It's just one of the address/data
>> switches, all other switches work fine. Are there any replacements for
>> these switches to be found?
>The part number on these switches is "AIRPAX 028-317-0001", What's
>special about them - I guess - is the mounting plate on the top. It
>snaps into the metal rails that keep all the switches aligned, and
>it's got two holes which the plastic switch cover snaps into. I
>couldn't find anything similar in the C&K catalog.
>I've also tries cleaning it, but no luck yet.
>For now, I've replaced the failing switch with the HALT/ENABLE switch,
>and replaced that one with a standard C&K switch. It doesn't look
>pretty, but at least it'll work.
>Now the next thing is to connect a serial console to the CPU. Read up
>a bit on this, and I'll need to put a MAX232 behind the TTL outputs.
>Also, the little switch was set to the "1" position, which means
>either 110 or 150 baud. I turned the switch to the "5" position, which
>should get me 2400 baud.Time to find out - and check the cpu a bit
>further in the process. I toggled in a simple program that sends a
>"10101010" bit pattern to the serial port. Hooked up my scope to the
>TTL output, and adjusted the potentiometer until I got the bit-period
>to 417 usec. I'm now starting the search for a MAX232.