>> ROM and FFT ROM (I don't have that one). There are two connectors on
the
>> top back of the 4051. I don't know what they're for except that one has
a
>> note not to connect the joy stick unless the machine is off, so I assume
>> that's what it's for. I think the other is for a printer.
>
> Guessing...
>
> One is for an analogue _potentiometer_ joyustick. This is like a CoCo
> joystick, not the variable resistor one on a PC.
I have the pinout. Interestingly, although the joystick is mentioned in
the Tek manuals, Tek hadn't heard of it when I spoke to them (this was an
engineer who had actually worked on 4050 series machines, btw). Similarly,
the manuals don't admit the existence of the joystick fire button but you
can connect it and it does work.
The potentiometers on my PC joystick (to which I added a new connector, and
which I rewired so that you actually get at both ends of the pot) are too
high resistance at about 200k ohms each. 1k to 10k is a more suitable
value. I keep meaning to add a buffer amplifier...
Philip.
I've been talking with a guy who says he has 2 or 3 DECmates and
a 3B2 600 with manuals, terminals and some printers. Their
company is moving and they need to get the stuff out of their
storage area. They won't "neither move the equipment nor incur any
financial penalty like packing, shipping" and someone has to come
by and pick it up. It is located in Pacoima, Calif. Depending on
the size of the system, I'd sorta like to have the 3B2, but it is a
DECmate that I'm really interested in. If anyone is in that area and
can arrange to pick up this hardware and would ship me at least
one of the DECmates I'd be happy to cover shipping and part of
your expenses in picking up the systems. Drop me a line if you
can help out. Oh, these have to be out by Dec. 4th or it's off to the
land fill.
-----
David Williams - Computer Packrat
dlw(a)trailingedge.com
http://www.trailingedge.com
Sometimes decals don't last as long as we would like.
How can you replace them?
I picked this up from the Heathkit list:
>From: "Ed Santavicca" <santavic(a)ct.picker.com>
>Subject: [HeathKit] dry-transfers
>I finally found it!! It wasnt posted on the list at all. A co-worker
>found it in the Digi-Key catalog, and told me about it several months ago.
>(the mind goes 1st) Its a product made by DynaArt Designs and is called
>the toner transfer system For $27.95 they supply 10 transfer sheets. It
>can make full color decals too. This is their info.
>
>DynaArt Designs
>3535 Stillmeadow Lane
>Lancaster, California 93536-6624
>Phone: (805) 943-4746
>FAX: (805) 943-3776
>
>Digi-Key has a web site with an online catalog.
>http://www.digikey.com/
Digi-Key's part numbers are:
TTS-5-ND (5 sheets per pack) $14.95
TTS-10-ND (10 sheets per pack) $27.95
These are intented to transfer pc layouts to copper clad
boards and the tranfers are etch resistant, but the ad says:
"Also (detailed instructions) show how to make full color
decals for any application".
Just use any laser printer or photocopier. (Sheet are 8 1/2" x 11")
Iron on to the surface, and soak in water to remove the paper.
=========================================
Doug Coward
Press Start Inc.
Sunnyvale,CA
=========================================
I have to agree with this sentiment. I have used the IBM keyboard since
the days of the 2741 (an APL terminal) and the selectric typewriters of
the day. Never has another keyboard manufacturer produced so nice
a feel (action, for the musical crowd) to the touch of my hand. I really
like
the Microsoft natural keyboard, with but one reservation - the action of
the key switches (I like the elite much less than the full sized model).
William R. Buckley
-----Original Message-----
From: jpero(a)pop.cgocable.net <jpero(a)pop.cgocable.net>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Monday, November 23, 1998 4:07 PM
Subject: Re: Dismantling an AT keyboard entirely
> Date: Mon, 23 Nov 1998 23:48:54 +0000 (GMT)
> Reply-to: classiccmp(a)u.washington.edu
> From: ard(a)p850ug1.demon.co.uk (Tony Duell)
> To: "Discussion re-collecting of classic computers"
<classiccmp(a)u.washington.edu>
> Subject: Dismantling an AT keyboard entirely
Don't tell me to swap for new $10 keyboard either! I touchtype all
the time and I have not found one that does similar job as this
bowing spring technologies in IBM keyboards.
Hi all,
----------
> From: CLASSICCMP(a)trailing-edge.com
> To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
> Subject: RE: New Q-bus toy, needs IDd...
> Date: Tuesday, November 24, 1998 1:16 PM
>
> Webster was an Australian company that made many Q-bus and a few Unibus
> DEC-compatible options. Here in North America, they were frequently
> relabeled with the "Aviv", "DSD", "Sigma", "Qualogy", and a few
> other trademarks. Strangely enough, "Wombat", the Webster MSCP
> config utility, was never renamed :-). Even if they tried, Webster's
> chief software designer left some Easter Eggs behind that'll pop
> up his name from the Wombat menu!
Speaking of aviv, i have an unibus scsi controller from aviv here, but no
docu. Anybody can help ?
Board is a: AW-20-1326-2A
thanks,
emanuel
>Ohhh, so if I shove this in, boot 2.9BSD, it should find this as
>a DZ-11? (I'm pretty sure it thinks I'm supposed to have a DZ...)
Absolutely, if the vector and CSR's match. (I *think* you can
change these in /etc/dtab under 2.9, if you need too.)
Tim.
>> > o Dual TIL 311 hex latching displays accessible as output port 4
>> > when in run mode.
>>
>> Have you considered, say, a small GAL-type device driving standard
>> 7-segment or 5x7 displays instead?
>
>Not a GAL. I want to avoid any non-popcorn parts beyond RAM, CPU and
>big I/O chips. I would _consider_ using the same BCD-to-7-segment
>decoder that was in the Elf-II; it properly displays A-F if fed $A through $F.
How would you feel about a GAL that was programmed to replace
the original part - with the same pinout?
Tim. (shoppa(a)trailing-edge.com)
>[It's a DZV11 clone]
>OK. What's a DZV11?
A 4-port async MUX. (This is getting circular, isn't it? I
suspect I misunderstand your real question!)
The Webster (and other) clones give you 8 lines, but all the DEC
software deals with this well because a DZ11 (the Unibus
version) has 8 lines.
Tim. (shoppa(a)trailing-edge.com)
> o Dual TIL 311 hex latching displays accessible as output port 4
> when in run mode.
Have you considered, say, a small GAL-type device driving standard
7-segment or 5x7 displays instead?
I just checked Jameco's web site and it appears that the TIL 311's
they sell (at $12 each) may indeed be "production-line" parts
still being made new by Ligitek. If so, this is a Good Thing!
Tim.
> Got a new Q-bus toy - It's a MUX.
> I need to know what it is, and what it's compatible with.
> The label on the A-S baggie says "AVIV 8-port MUX, Q-BUS".
> It appears to have the model # "SDZV11/03", this is written on the PCB.
> The distribution panel has "Webster Electronics" written on it.
> Any ideas?
This is - surprise! - a clone of the DEC DZV11. Sometimes part numbers
are your friends!
Webster was an Australian company that made many Q-bus and a few Unibus
DEC-compatible options. Here in North America, they were frequently
relabeled with the "Aviv", "DSD", "Sigma", "Qualogy", and a few
other trademarks. Strangely enough, "Wombat", the Webster MSCP
config utility, was never renamed :-). Even if they tried, Webster's
chief software designer left some Easter Eggs behind that'll pop
up his name from the Wombat menu!
--
Tim Shoppa Email: shoppa(a)trailing-edge.com
Trailing Edge Technology WWW: http://www.trailing-edge.com/
7328 Bradley Blvd Voice: 301-767-5917
Bethesda, MD, USA 20817 Fax: 301-767-5927
