I picked up an absolutely perfect Commodore SX-64 (used 5 times) and a
VIC-20 with box and all flyers, etc (used once). I find the included stuff
fascinating (almost as much so as the machines themselves) as they
recapture the flavor of the era.
The SX-64 documentation makes reference to a DX-64. What's that -- 2
drives?
Also, the SX-64 refused to read (known good) disks at first, then read
fine. Suppose a film had built up on the head, which the disks "scrubbed"?
Anyone ever see that happen?
Anyone want either? Make an offer.
I have a line on some Radio Shack Model 100 stuff in the Research Triangle
Park area of North Carolina. The guy wants to sell ("no reasonable offer
refused") the stuff in a lot, but I only need a few parts of it. Below is the
list. If someone wants it (except the ones marked with "*"), let me know.
------------------------
Rich Cini/WUGNET
<rcini(a)msn.com>
- ClubWin Charter Member (6)
- MCPS Windows 95/Networking
==============>>> The List
Lots of Model 100 Stuff in Good Condition
2 Model 100's 24K- good condition
1 Portable Disk Drive 2 (*)
1 Disk Video Interface- New Condition
1 Modem Acoustic Cups (*)
1 Radio Shack CTR Tape Recorder (works well)
1 Service Manual and Tech Ref Manual (*)
Miscellaneous software and accessories, cables etc.
On Thu, 31 Jul 1997 00:39:13 -0400, Roger Merchberger <zmerch(a)northernway.net>
wrote:
>>Use a diode to change the -12V to 0V, and resistors to change the +12V to
+5V .. it helps to have a cable to test first for that one, tho. On the
Tandy PDDs, the resistor value was 22K Ohms IIRC and any cheap .6V drop
diode would do (read: 1N914 -- everybody's buddy)<<
It's funny that you said this. I just looked at an RS-232 level shifter
circuit on the MIT MiniBoard robotics controller that used a transistor, two
LEDs and a handful of resistors to accomplish that, but it needs 5v to
operate. Really what I need is a parasitic converter that's powered off of the
serial port itself. I've seen this done with a MAX232 or a Dallas 12?? chip.
Hmmmm, time to circuit-hunt.
-------------------------------------------------
Rich Cini/WUGNET
e-mail: rcini(a)msn.com
- ClubWin Charter Member (6)
- MCPS Windows 95/Netowrking
Hello, all:
I know that this really doesn't fit here, since I only bought this calc
yesterday, but I figure that someone here may know...
I bought a TI-85 graphing calculator, and it has a 3-wire computer interface.
It seems that for $40, you can buy a cable adapter to hook it to a PC's COM
port. Software can be gotten from TI's Web site.
I don't want to pay $40 for a DB-9 connector and a 3-wire headphone jack. I'm
guessing that the interface is a software-handshaking 3-wire RS-232 setup, but
before I hook something up to the calc, I wanted to ask if anyone has this
calc and can shed some light on it.
TIA!
------------------------
Rich Cini/WUGNET
- ClubWin Charter Member (6)
- MCPS Windows 95/Networking
Hi!
I recently picked up one of these beasts at a second-hand store, and
managed to assemble her and get her running. However, I have been unable
to find out anything about them other than they run the 8086 processor. Can
anyone tell me something more? Like what the OS is, when they were made,
and what tehir arcitecture was? Honeywell, unsuprisingly, couldn't help,
and I found nothing on the web.
Thanks heaps,
Adam.
You may not have noticed ;) but I've been too busy to do
anything list-related for the last couple weeks. I'll
catch up on the old messages soon.
New stuff:
1. After a 2 week linux installation the classiccmp server
is on-line (yeah, it was really ugly). Anyway we now have
a couple gigs of storage space available. If you want to
create anything for the web site I can provide space.
The web site is now http://haliotis.bothell.washington.edu/classiccmp/
The ftp site is now ftp://haliotis.bothell.washington.edu/pub/classiccmp/
2. I will be taking a week-long vacation in San Luis Obispo, CA in
early september. There is a huge computer scrap-yard in the area that
I will be checking out. If any of you local to the area would like
to join up for that, let me know.
Bill Whitson
Whilst in a self-induced trance, jpero(a)mail.cgo.wave.ca happened to blather:
>> I know that this really doesn't fit here, since I only bought this calc
>> yesterday, but I figure that someone here may know...
>>
>> I bought a TI-85 graphing calculator, and it has a 3-wire computer
interface.
>> It seems that for $40, you can buy a cable adapter to hook it to a PC's
COM
>> port. Software can be gotten from TI's Web site.
>>
>> I don't want to pay $40 for a DB-9 connector and a 3-wire headphone
jack. I'm
>> guessing that the interface is a software-handshaking 3-wire RS-232
setup, but
>> before I hook something up to the calc, I wanted to ask if anyone has this
>> calc and can shed some light on it.
>Sorry to throw wet towel on you...those "dongle" interface kit guess
>what has little complex board inside. Real sucker really.
>
>We did that this year to see if we can do that too. :)
Hold on there, pardner! This isn't nearly as complex as you think. If the
TI is anything like my Casio FX9700G graphic calculator, with the funky
3-wire headphone hookup, you can most likely do it with 1 or 2 chips or
even just some diodes and resistors. What it is, is the interface is an
*almost* standard RS-232 interface. Speed and all is normal, but it prolly
only works on TTL levels. The PDDs (Portable Disk Drives) from Tandy to be
used on their old, non-MS-Dos laptops did the same thing... used RS-232 but
only at +5V and 0V levels.
Use a diode to change the -12V to 0V, and resistors to change the +12V to
+5V .. it helps to have a cable to test first for that one, tho. On the
Tandy PDDs, the resistor value was 22K Ohms IIRC and any cheap .6V drop
diode would do (read: 1N914 -- everybody's buddy)
Otherwise, just design a small, self-powered 1488/1489 box to convert the
levels, and you're off and running. I was planning on doing this for my
Casio, but haven't had the time just yet.
(Maybe I can just use my TPDD cable... hooking up the appropriate wires???
Something to think about.)
Anyway, I hope this helps!
Roger "Merch" Merchberger
--
Roger Merchberger | If at first you don't succeed,
Programmer, NorthernWay | nuclear warhead disarmament should *not*
zmerch(a)northernway.net | be your first career choice.
Hi Kai::
I don't remeber if I got back to you about the Lisa. If I did, I guess
just ignore this post. You had mentioned that you do not have access to
the Office system. I have a set of disk images of the Office system as
well as the workshop that I can email you if you would like. Also, I
have information on removing the serialization if you already have a
serialized set you would like to install.
Rob
