Somewhere I have the schematic to tap the input of the RF modulator to drive a Composite Monitor. Several of my Cocos have these. But, newer flat screen TVs may not be able to accept this signal.
You are probably going to find it easier and cheaper to get an old Color TV on Freecycle to use with the Coco than to adapt it to RGB or DVI.
Al
> From: "Vintage Coder" <vintagecoder at aol.com>
>
> I have an old COCO II somewhere but I don't have a television. What are you guys who have similar old systems doing for a display?
> Is there a device to convert the TV out from those computers to D-Sub or dare to dream, DVI?? What do you call such a converter? Thanks.?
Hey folks. Can anyone recommend a good book (that I can find used
via abebooks etc) that'll teach me the ins & outs of small-scale (i.e.,
sheet-fed) offset printing? Old is fine. (I'm exploring old presses)
-Dave
--
Dave McGuire
New Kensington, PA
Pardon if you've heard this before, but...
I'm looking for the programming algorithm for Lattice/AMD/Cypress old
PALCE devices. I've got a bucketload of them (mostly PLCC) and I'd
like to do something with them or trash them, if no luck in the
programming department.
I've found algorithms for the PEEL devices as well as NS type plain
GALs, but nothing on the PALCEs.
I know that programming info is usually supplied to OEMs under a NDA,
but the technology has passed through a sufficient number of hands
that it's hard to believe that nobody has any information.
Note, unless it's very cheap (i.e. it costs less than thowing the
PALCEs out) I'm not interested in another programmer, but I'm not
opposed to tinkering a bit.
Thanks for whatever help,
--Chuck
I need a copy of the diagnostic program for a Qbus Data Translation board:
DT2768-I
The program that I need runs under RT-11. If there are other versions,
it may be possible to use a different operating system, so please let me
know if you have a non-RT-11 version.
I believe it is an Analog to Digital Adapter, but I am not sure.
However, the
module number is definitely DT2768-I.
Can anyone help or suggest where it can be found. I checked bitsavers on
both the bit and pdf sections, but there was nothing there.
Jerome Fine
Word 5.1 for the Mac runs fine under Executor (http://www.ardi.com). In fact, Executor came about as a way to run Word and Excel on NeXT systems, and was ported to Windows, DOS, and Linux.
Executor was how I ran Word for Mac on my PC until Word for Windows eventually caught up.
I also used the MagicSac on my Atari-ST with an Epson MX-80 and EPStart (to print with) to use Word on my ST. Later I got a program whose name I forget (Printworks for the Mac - Laser Version?) that was a driver for popular Laser and Dot Matrix Printers that came with a special Apple Serial to Parallel printer cable.
I have a Spectre-128 GCR now (I also have ARDI's Transporter One to read Mac GCR disks), but haven't booted my ST in ages. It has a 2.5gb RAM upgrade by AERCO that has stopped working, and I lost the documentation for it, so I can't figure out the jumper settings. Someday, I hope to find them or find someone who has it... Or even more unlikely, run into one of the principles of AERCO.
I remember that WordPerfect for the Mac 3.5 ran fine under Classic on MacOS X. Here's a webpage about it:?http://www.columbia.edu/~em36/wpdos/macintosh.html
Hope some of this is helpful...
Al
Pontus <pontus at update.uu.se> wrote:
> Hi.
>
> I'm afraid that I have been unable to get a hold of the owners and by
> now it is probably to late.
Too bad. I know some DEC-heads from N Germany and I had hoped one of them would have made for the stuff.
> I can comfort you with that there was nothing terribly unusual there.
Anything DEC is too scarce to lose in a world dominated by PeeCees!
I had hoped for e.g. a Radiator VAX (BA23 ?VAX) to complement my VSII/GPX and perhaps some tower style Alpha hardware. Also original DEC terminals. Another time, perhaps...
So long and thanks for the heads-up,
Arno Kletzander
--
Empfehlen Sie GMX DSL Ihren Freunden und Bekannten und wir
belohnen Sie mit bis zu 50,- Euro! https://freundschaftswerbung.gmx.de
On 8 Dec 2011 at 19:47, Bill Sudbrink wrote:
> I'm thinking of building a "somewhat vintage" two-channel DAC board,
> intended to drive an oscilloscope as a vector display.
Well, if you want "vintage" (and I assume you do) there was at least
one such project in an old issue of Byte or Kilobaud (IIRC).
Given that typical period (I'm assuming vintage all the way) o-
scope's linearity is none too wonderful, you might get away with a
single 8255 PPI (or similar parallel chip) and a simple R-2R "ladder"
DAC. You can't get much cheaper than that.
--Chuck
Hi,
Noticed an old posting.
Just have to say that this was NOT an emulator.
It was a real hardware Burroughs mainframe.
Regards,
David Faultersack
Micro-A Engineer
I'm designing a video scan converter to connect my classic Amiga to a
new LCD. For the journey, not the destination. Don't want to buy one off
the shelf, etc.
I need to both read and write to my single-port freeware altera memory
controller simultaneously(ok, not exactly at the same time) . I'm
converting from 320x200 to 640x400, doing simple pixel doubling.
12-bit color, 4-bits per color, padded to 16-bit for ease of handling
within the FPGA.
Write side into the memory from amiga->my converter: 1 byte every 70ns.
Read side to go from memory->LCD: 1 byte every 20ns.
Memory is 8mb, 133mhz access, 16 bits wide, wishbone memory controller
has fixed burst size of 2.
What are some common ways of doing arbitration?
Time slots with buffering between writes? How would this be implemented?
Two-port memory controller (I can't find a free, working, easy to use
Altera one)
Some type of synchronization method? Semaphore/Mutex concepts?
My existing setup detects horizontal sync pulse, and reads the entire
line from DRAM -> block ram. Since I'm pixel doubling, I only need to
read one input line for every two output lines, so I can potentially
relax my READ times accordingly.
Any advice or recommended references would be appreciated.
My efforts are being blogged at
http://techtravels.org/?page_id=463
Thanks
Keith
