At 12:41 AM 12/5/2020, Josh Dersch via cctalk wrote:
>Thought you folks might be interested in a quick update on my folly here.
>
>At the beginning of November I drove down to the bay area to pick up the
>two fire-damaged PDP-11 systems -- a PDP-11/70 and a PDP-11/45. (I also
>made a few other stops and got a few other items, but that's not what I'm
>here to talk about...)
Darn, I thought you'd tell some other tales of what Dale had in
his warehouse.
- John
Phil -
Search for Push-In Rivets (plastic, nylon, etc.).
Two of the largest mfg. of plastic Push Rivets are just east (Richco, River Forest, IL) and north (Fastex, Des Plaines, IL) of me. Both have been acquired by larger conglomerates.
?
Richco (River Forest) was bought by Essentra Components (UK) in December 2011.
https://www.essentracomponents.com/en-us/s/push-in-rivets
Global HQ for Essentra is in your neighborhood (Ask for Samples).
Langford Locks
Kidlington,
Oxon, OX5 1HX
United Kingdom
Tel: +44 (0) 1865 844572
Fax: +44 (0) 1865 844488
orders at essentracomponents.co.uk
www.essentracomponents.com/en-gb
====
ITW/Fastex : Push Rivets (Des Plaines, IL) acquired by Illinois Tool Works (ITW).
https://www.itw-fastex.com/rivets.html
==
greg, Chicago
===
Date: Fri, 4 Dec 2020 02:20:55 +0000
From: Philip Pemberton <classiccmp at philpem.me.uk>
To: cctalk at classiccmp.org
Subject: WTD - Jupiter Ace plastic rivets
Has anyone got a couple of the white plastic rivets which are used to
hold the Jupiter Ace case together?
They consist of a 4-point clawed rivet of about 5mm long, and a pin
which pushes down the centre to open it out.
I need five of them ideally - but even two or three would get the case
buttoned up, if not perfectly.
I've checked the local plastic supplier catalogues and haven't found
anything which quite matches up.
Cheers,
--
Phil.
philpem at philpem.me.uk
https://www.philpem.me.uk/
Sent from iPad Pro
So I'm getting into the "I can see the box" layers in the excavation
project, and I have a question: I've got a box that may be a Perq, and a
printer that may be a Perq printer. The printer looks like an old
Laserjet I, and the box is metal, 3ish feet tall, and has what looks
like a 10 inch hard disk inside.
Problem is I won't be able to get it up the steps. (Where have I heard
that before). So how much can one take a Perq box apart to make it as
light as possible? Is it simple to get the drive out? Power supply in
there somewhere? How about the card cage?
Pics at:
https://i.imgur.com/ohuohvC.jpghttps://i.imgur.com/81him0F.jpg
Hello,
I just picked up a Hazeltine 2000c? terminal without the keyboard.? If anybody might happen to have (or know of) a spare Hazeltine 2000 keyboard, I would be very interested.? I realize it's a long shot.
The keyboard is a standard ASCII keyboard, with several extra function keys and lights, so I'm pretty sure I can whip up a replacement, but the whole point is to recapture the original look and feel.? Back in the '70s, Memphis State (Now U of M) had a few of these terminals, and a great many Hazeltine 1500 terminals.? I've been hunting for a Hazeltine 2000 for ages.? It would be awesome to have one up and running.
Dave
If anyone knows of an available unit (at considerably less than the $500
one on eBay), please let me know. I actually have one SC-01-A and would
even take a unit missing the Votrax chip - I understand some units were
scavenged for the chip for several video arcade machines which used them.
Does anyone know the size/threading of these? I've been searching high and
low and haven't been able to find any approximate or otherwise specs (they
use captive clips, so close is OK) - i've found the PSU mounting screw
sizes and sourced those though.
--
Gary G. Sparkes Jr.
KB3HAG
The boot roms for the MXV11-B multifunction board can be used in the
MRV11-D general purpose ROM q-bus board.? Neat if you want to put
together a small system.
I have a MRV11-C board and it differs from the MRV11-D board primarily
in the ROM sockets, 24 pin on the MRV11-C and 28 pin on the MRV11-D so I
can't use the MXV11-B ROM's directly.
Can the MXV11-B ROM set be adapted for the MRV11-C board?? If not, what
can you use as a bootstrap ROM set on the MRV11-C?
Doug
I had occasion to look at the service manual for the Radio Shack 26-4150
8MB hard disk which was used with the Model II (and potentially could be
used on 12, 16, 16B or 6000). Note that this drive is not compatible with
the Model I, 3, or 4, and the cable wiring between the computer and the
controller (inside the drive box) is entirely different than what was used
on the later 5, 12, 15, 35, and 70 MB drives. The Model II host adapter
for the 8MB drive thus is only useful with the 8MB drive, and vice versa.
There were later Model II host adapters that could be used with the 12, 15,
35, and 70 MB drives, which were also useful on the Model I, 3, and 4.
Anyhow, I discovered that according to the documentation, the 8 bit data
bus between the host interface and controller uses 8T26 bidirectional
buffers at each end, which are rated to sink up to 24 mA, but the
schematics show that Radio Shack put 220/330 ohm terminators on the data
bus lines at BOTH ends of the cable! That requires the 8T26 to sink as much
as 55 mA, which means that its logic zero output voltage is likely to
exceed its normal rating. At the very least, this will result in reduced
noise immunity.
I don't have an 8MB host interface or drive in hand to confirm, but the
photos I've found online do show the resistor networks on both ends.
The controller (inside the drive box) is a modified version of a WD1000,
configured for use with the 8-inch SA1004 drive, which operates at 4.34
Mbps, NOT 5.00 Mbps like 5 1/4" drives. Aside from that, it has a different
host pinout than a normal WD1000 (or than the later Tandy controllers), and
has extra circuitry for dealing with write protection. Electrically, the
host interface is otherwise the same as the WD1000. Normally the data bus
for the WD1000 would only be single-terminated at the controller end. That
is in fact what Radio Shack did on all of the later host adapters.
https://www.ebay.de/itm/254795423667
?1
?
LISP MACHINE INC 1/2" Reel Tapes
Anyone who opens this auction will know what this is - and how unique
these tapes are.
The lot is consisting of 13 tapes, which are labeled as follows:
LMI FORTRAN 77 #1352-0000 LMI Release 2.0 two tapes
LMI Boot / SDU 3.14 #3143-0000 Rev A
LMI REL 3.1 Patch Tape 1600BPI 30. SEP 1987
LMI CS Tape Experimental 6. AUG 1987
LMI UCODE 1599 11 FEB 1987
LMI RELEASE 2.0 Diagnostics #1022-0000
LMI LISP SOURCE
LMI Release 3.0 LISP System 3.205 Microcode 1593
plus four unlabeled tapes
plus two loose tape label, not assignable to the tapes unlabled
The tapes were not tested for readability by me and will be sold as is.
Shipment world wide, please ask for shipment costs - additional
insurance cost might be apply.
?
--
Liam Proven ? Profile: https://about.me/liamproven
Email: lproven at cix.co.uk ? gMail/gTalk/gHangouts: lproven at gmail.com
Twitter/Facebook/LinkedIn/Flickr: lproven ? Skype: liamproven
UK: +44 7939-087884 ? ?R (+ WhatsApp/Telegram/Signal): +420 702 829 053
I have a bankers box worth of dec ultrix 32 reference manuals in grey dec
binders. Im looking to sell the box of books for a few $ plus the cost of
shipping.
Hoping to find these books a good home.
--Devin D.
