Something to keep in mind is that the Lancaster system expects the display memory to contain ASCII characters. The translation to actual pixels is done in hardware, by the character generator.

Right, and that seems to be where the somewhat complex Lancaster setup pays off. The hardware aspect is ...

Garth-

What's the software, at least in block diagram form, look like to output to your oscilloscope monitor? Perhaps that belongs in the Programming section, but a general idea would be helpful. Thanks!

Jeff-

The wasted space on the EPROM is kind of moot at a cost of a few dollars a piece. I assume the ROMs on this old circuit are designated the way they are due to memory being so expensive at the time. Interestingly, I think the modern version of the TVT-6 on perfboard could still be built near ...

Jeff-
Just as I suspected :)
As I said, I have the 2k BIN file for the 2513 image. Some time on Google turned up the potential of using a 2716 EPROM to replace the 2513, interestingly enough in a Briel forum post:
http://www.brielcomputers.com/phpBB3/viewtopic.php?f=20&t=420

The IM5610 cross ...

Jeff-
I suppose I'm open to using any video output method. I like the NTSC output because of the nostalgia involved (the first computer that was MINE was a C64, already 10+ years old at that point, using my TV for output). VGA is nice because I've got a spare 14" VGA LCD monitor lying around that I ...

After pricing out the components individually, the MicroKim kit @ 100 dollars is actually a pretty good deal. Will certainly build the add-ons myself, though.

Garth-
The oscilloscope circuit for the KIM-1 I am referring to can be found in the (very rough) scan of issues 9/10 of the KIM User Notes newsletter. Find it at http://www.classiccmp.org/cini/pdf/KIM%20Notes/KIMVol0910.pdf . It wasn't intended for text (I think you're referring to the SYM-1 circuit ...

Garth-
You present another possible solution to adding video to this machine. I downloaded all of the old "KIM-1 User Notes" newsletters, one of which presented a simple circuit to use an oscilloscope to add graphics to KIM-1 games. This is another option to consider, even though it would mandate my ...

Jeff -
First, thanks for the welcome :)

Second, there seem to be a few very different iterations of the TVT system. I'm interested in this TVT-6 design because it seems GREATLY simplified versus the original design that I've seen. The TVT-6 is a small 10 IC, single PCB add-on, whereas the original ...

Hi all, new here. I've been thinking about buying Vince Briel's Micro-Kim kit to teach myself low-level programming in assembler on a real piece of hardware. I know that one can use the serial interface and a PC or PockeTerm to talk to the machine (aside from the hex keypad), but I've also been ...