So today I picked up something I had never seen before - an IBM 3511.
This is a large tower expansion chassis for the PS/2 line. It looks
very straightforward - but can any of you PS/2 fans comment on this?
Was it an unsuccessful product? Low demand item?
--
Will
> From: Devin Davison
> well there goes my plan of trying to keep it under the radar.
Sorry, I didn't mean to upset your plan (and you); I just didn't know if
anyone was watching for VAX-11/780 parts, they come by so rarely.
We have discussed this topic before, but let me recapitulate one point about
pricing and valuations: if we want to stop this stuff being scrapped, we need
to make sure the prices realized are well above scrap. This will have several
consequences:
i) If people only get low (scrap-region) prices, why go to all the
bother/hassle of listing things on auction sites; just proceeed directly to
'Go'. ii) Hopefully, if values are non-trivial, the word will get around, and
people who have this stuff will go to the effort to list it, instead of
leaving it to moulder, etc.
Yes, I understand that will make this a more expensive hobby, but TANSTAAFL.
YMMV.
Noel
I picked up a Smith-Corona Memory Correct 400 Messenger typewriter at Goodwill last week. It has the daisy wheel but no ribbon. I debated getting it since I already have enough retro stuff around the house, but every single time I?m at a Goodwill I look at all the typewriters to see if they have some kind of serial or parallel port. This one has a DE9 connector on the back which can be connected to a computer using an external box called a Messenger Module, which I also have.
I plugged it in at the store and the typewriter didn't power up. They gave me 10 bucks off so I couldn?t resist and bought it. I?m hoping it?s an easy fix, but I can?t figure out how to get the thing apart at all! The four screws in the bottom just hold the plastic case to the metal frame, and removing them didn?t allow the case to come apart. I can?t figure out how to get the two plastic halves separated. There's no screws in the top and no other screws in the bottom. The plastic halves aren't welded together around the outside, I can wedge a screwdriver between them all the way around. There seems to be something holding the halves together near the four corners.
Does anyone have any idea of how to get this thing open (without breaking the plastic)? I?ve searched all over the internet but I can?t find any scanned service manuals. The typewriter is from 1984 and was sold for $600 new so it doesn't seem to me like it would be a "disposable" item so there has to be a way to open it and service it. From what I can tell the 200/300/400 all use the same case, and the Memory Correct II/III use a very similar case, so info for any of those may help.
I posted an album here:
http://imgur.com/a/SxfTE
and a YouTube video here:
http://youtu.be/ryDl0Qvl7Gk
Any assistance in opening the case without breaking it will be greatly appreciated! :-)
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--
------------------------------------ personal: http://www.cameronkaiser.com/ --
Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com
-- Bowl angry. ----------------------------------------------------------------
Folks
I have today collect a recent E-Bay purchase. It appears to be an IO
Selectric that has been left in a garage for a long period of time and is
very gummed up. It will turn over with the manual handle, and it appears to
try and type, but the carriage does not advance. All the tapes and chords
appear to be in place. I have put some pictures here:-
https://onedrive.live.com/redir?resid=277A0739F125010E!119461
<https://onedrive.live.com/redir?resid=277A0739F125010E!119461&authkey=!AGfg
RGXKAjqDm7E&ithint=folder%2cJPG>
&authkey=!AGfgRGXKAjqDm7E&ithint=folder%2cJPG
sorry for the long link. Does anyone have any suggestions as to which
manuals are appropriate, and which documentation was followed to allow it to
be used as a printer?
Dave Wade
G4UGM
I just acquired a DG Eclipse S/230 in semi-decent condition. It's mostly
complete with some fun peripherals in a gigantic rack. It'll be fun to get
it going, but it's going to be a challenge -- the machine has been
scavenged from here and there, I'm missing basic TTY I/O and controllers
for the 8" floppy drive (and probably other things, too).
Going over the boards, there's an IC on the "CPU 1" board that was somehow
forcibly ripped from the PCB -- it looks like someone started clipping it
off, then said "screw it" and yanked the thing off with pliers, leaving
much of the leads leading up to the IC die. The PCB is undamaged, but I
don't know what the IC is supposed to be. I suspect, based on what's
surrounding it, that it's an SN74172J.
The IC is located at position X3 (approximately, it covers more real estate
than that). Anyone have a CPU 1 board from an S/230 they can check for
me? There isn't much in the way of schematics for this that I can find...
Thanks!
Josh
In my quest for a working RX02 I'm trying to find out the best way of
checking out an RXV21 and get it talking to the RX02. I have most of the
standard diagnostics including XXDP.
The setup is an 11/83 with an RX50 and RD53. (I can boot from either)
In the box is
MSV11-J PMI
KDF11-B
RXV21
RQDX3
They are in the order as above. The two dual height modules are in the
right hand side of the back plane when viewed from the front.
I am unsure as if there is a utility for RXV21 among all the diags I
have or should I go in with ODT on a halted system and look at registers.
With the setup above I need to get the RXV21 going in order to check out
the RX02.
The precise syntax of any commands is important because presuming I may
have prior knowledge is not a good
idea.
I may have known this stuff in the past but I cant remember if I did or
not!!
Rod
In following this thread, and taking in my "vast" Heathkit knowledge, I can only assume that the addition of a 'W' in the model number is to indicate a WIRED (at the factory) Heathkit.
This may mean that the ETW-3400(a) is a wired version of the ET-3400(a).
The difference that shows between the 'a' and non 'a' version is the space for four ram chips in the upper left visible corner of the PC board. The non-a version can have up to 4 ram chips (for a total of 512 bytes), but the a version has two 1024x4 chips, but only 512 bytes are available.
Hope this answers some questions.
(I have an ET3400-a version).