On April 16, Russ Blakeman wrote:
> Anyone have a ops & service manual for a Tektronix 545B (old tube type,
> circe 1965) oscilloscope? A friend of mine in Wyoming has been given one
> and she wants to learn how to use it. A photcopy is even good. I have some
> commercial sources but if anyone has ever tried to find a manual you know
> what vultures the manual vendors can be.
>
> Any responses are greatly appreciated.
Can't help you with the manual, but tell your friend that she's gonna
love it. I've got a 545A that I just adore. It's a wonderful scope.
My everyday scopes are Tek 2465A and HP 54111D, but I'll keep my
trusty 545A forever. It's a really rock-solid scope.
-Dave McGuire
Hi All,
Many thanks to Joe for supplying me with a keyboard and mouse for my HP
Apollo. Works great. It did allow me to boot up and provided me with some
functionality but the OS is corrupt. Now I'm in the market for an external
chassis or external SCSI CD-ROM that would allow me to reload an operating
system. I wish there was a DRMO or disposal site close to me, but I happen
to live in one of those places where used computer parts are scarce and if
you can find them you have to pay $$$$$$$. I thought ebay was bad. Any
help would be appreciated.
Arnie
-----Original Message-----
From: Jerome Fine <jhfine(a)idirect.com>
To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org>
Date: Friday, April 13, 2001 5:18 PM
Subject: Re: My Collection
>>Marian Capel wrote:
>
>> PDP8/F with TU56 and DSD440
>> PDP8/A with TU56 and RL01
>> VT100, hacked about to contain an 11/23, with external ST412, runs RX11.
>> Anybody has some RT11 manuals available.
>> Jos Dreesen
>
>Jerome Fine replies:
>
>Interesting collection. I had not realized that DSD made a controller for
the
>PDP8, just for the PDP-11. Also I am really surprised that DEC made
>an RL01 controller for the PDP8.
As someone else mentioned: the RL01 only fits to the 8/A. The DSD440
controller for omnibus will have to be made from the schematics in the
manuals..... Luckily i have an omnibus experimental board. But currently the
DSD fails it's selftest...
>
>AS for your VT100, it sounds like you might have a VT103 which was a
standard
>DEC product. Does it use a dual 11/23 but have added a 3rd party MFM
controller
>with its own boot ROM or are you using a quad 11/23 and an RQDX1?
>
The system is definitly a hacked VT100 : it contains an M8186 ( dual 11/23?)
a RQXD1, (with a possible custom boot prom), a M8044 32 KMOS memory board ,
itself hacked to contain 256K,a M8043, a third party NC550 programmable
clock and a DSD440 controller card. The system boots of the ST412 into RT11.
The system is in a very hobbyist state...
Of course the VT100 also contains a second powersupply.
>Also, I am not surprised, but no one seems to consider software as part
>of their collection
It certainly is, but how often does a system you've pulled from the dumpster
contains a matching suite of software ?
Jos Dreesen
>
Hello,
Back in '82, I used a micro-Expander with a floppy drive. It run CP/M an we used it for CIS-COBOL programming. If I remeber, the disk-drive was an Micropolis(???) Does anybody know the details of the disk format, so that I can read the disks I have?
Regards
George Parapadakis
Hi, gang.
I have 8 issues of Dr. Dobb's from 82 & 83. I tried 'em on ebay, but
the response was underwhelming both times I listed them.
So, I'm offering them to the first person who wants them and is
willing to pay postage.
Let me know. Thanks!
Paul Braun
Cygnus Productions
nerdware(a)laidbak.com
I have a couple of 8" floppy disks. I believe that at that time they used
8560 Tektronix system with Tnix OS for these floppies. Now I want to
transfer data from those floppy disks to different media.
It is hard to find a service that does the data conversion from those
floppies. Does anyone have any recommendations?
Thanks for a million times
I am actively involved in the hobby program with Mentec. ( I even managed
to drag a couple other members of the list into it) The RT11 release is
just waiting for one last update for something that will be on the CD. All
of this probably would have been completed over a month ago but I had a
major fire that destroyed my office and storage buildings at the end of
January. ( You don't even want to know the amount of DEC equipment and docs
that were destroyed - over 3000 sq. feet of tightly packed racks and
shelves) this ranged from 11/40, 11/04 through 11/93's, M90's, M100's,
numerous VAX's up to and including a couple 4705A's.
Needless to say this has put me WAY behind financially and with the regular
customers I support.
I will be announcing it here when it is official but in the meantime please
go easy on Mentec. It ends up trickling back to me and I am doing as much
as I can, when I can.
RSX and RSTS will follow as my time ( and the others involved) permits.
Also don't expect them to be willing to put any time or effort into support
of hobby users. If you want support then you need to be a real commercial
paying $$ customer that pays for the consulting time like many of us here
get paid that are consultants.
Dan
Is this a duplicate message? I sent it at 16:04:04 - 04:00 (EDT) just over 92 minutes
ago! Either <classiccmp(a)classiccmp.org> did not receive it or (more likely) my ISP
did not send it! Or my ISP lost the reply! The test message I sent at 17:12:55 took
about 20 minutes round trip - not too bad, but since it has been over an hour and
a half for this message, here it is again! I suspect the most likely possibility is
that the original was lost since I have received many e-mails from classiccmp today!!!
-----------------------------------------------------------------------------------------
Of all the individuals of whom I am aware of that are still interested in any aspect
of RT-11, about half subscribe to this list. Since this is still essentially a private as
opposed to a public list (such as a news group), I would like some help plus an
opinion on whether or not anyone would still be interested in an RT-11 News Letter?
Also, should Mentec be approached to possibly support, provide a forum or
at the very least provide its blessing?
Obviously, I could just send a brief request via this list along with the "alt.sys.pdp11",
and "vmsnet.pdp-11" news groups before I even contacted Mentec to find out if
enough people are interested. But if some suggestions and feedback are useful prior
to that inquiry, then Mentec might be more receptive.
Note that the News Letter could be for both hobby and commercial users. Topics
could be Y2K compliance for the hobby V5.03 as well as bug fixes for current
V5.07 and enhancements for all versions.
DEC used to publish an RT-11 status document each month, but there are obviously
no funds as well as no need at this point due to the internet making distribution costs
zero. However, I suspect there are not many more years left before interest may
dip below a self-sustaining level. Consequently, it might be helpful to find someone
who will attempt to assist new converts as well as helping with bugs and enhancements.
I know that some interest remains in RT-11 and I would like to pass on my information
so that it can be preserved.
By the way, has anyone heard anything more about the hobby license issues for all
PDP-11 software from Mentec along with anything specific about RT-11?
I would appreciate any and all comments along with suggestions on how to proceed
with getting Mentec involved (Is that a plus or a minus?) although at this point I feel
the chances are very low and I would be more than satisfied if Mentec was just neutral.
Sincerely yours,
Jerome Fine
Hi Folks,
Curt, would you consider shipping a slab to the UK, and if so how much
would it cost me? I think the chances of getting one over here otherwise
might be pretty slim!
Recent finds:
Boxed Atari 520STfm
Boxed Amiga A590 hard drive - nice! Like the SCSI out on the back.
Odyssey 1 'Baseball' game in practically complete condition
Unused boxed Timex Sinclair TS1000
Unused boxed Timex Sinclair TS1500
Unused Timex Sinclair TS2068 - smart :) Even the demo cassette is still
wrapped.
ICL One-Per-Desk with hi-res monitor in fully working condition; it's
even y2k compliant!
Mint boxed Sega Megadrive II to go with my Megadrive and MegaCD
Commodore CDTV with keyboard and floppy drive - wahey!
Another Mac Colour Classic :) I'm a sucker for compact macs, plus it was
only ukp10.
Mac Performa 5300
Acorn A7000 with monitor and keyboard
Acorn A4000 with keyboard (another one)
Fileware 'Twiggy' disk for the Lisa 1 :o))
Open University PT502 'Hektor' training machine. Hehe.....goes nicely
with the PT501!
Requests:
Anyone got a spare superfloppy for the Mac Colour Classic? My new one's
suffered from the 'dead floppy being pulled out with pliers' syndrome so
the r/w heads are munged as is some of the sensory gubbins.
And, anyone got a remote control and mouse for the CDTV they don't want
any more? <hopes>. My CDTV works fine but it's difficult to use without
the remote.....
cheers!
--
Adrian Graham MCSE/ASE/MCP
C CAT Limited
Gubbins: http://www.ccat.co.uk (work)
<http://www.snakebiteandblack.co.uk> (home)
<http://www.binarydinosaurs.co.uk> (The Online Computer Museum, as
featured in Computer Weekly!)
0/0
On April 16, Russ Blakeman wrote:
> I have the 454A and HP 54201D and I'm set for good, at least now.
Ahh, both nice scopes. I've seen many a 454A but never owned one.
I did own a 54201D for a long time, though. A great scope! My
favorite thing about it was that nice huge CRT. No squinting with
that scope! :-)
> By the way I misread your first message where the note of good scopes was to
> someone else. Ignore my DUH reply.
Understood...no biggie...
-Dave McGuire
