Ksarul

Welcome to the group! I'm glad you found us! The resources thread will keep you occupied for years. . .

I may have to track down a couple of bottles of Glühwein to drag to Chicago. . .the Class VI or the Base Exchange usually has it. It is a very good thing to have on a cold day. . .

Tempest, I can probably build four of the game cartridges for you after the Chicago faire. You definitely need Red boards for 512K images. I'd have to build them as 512K carts, as I don't have any one meg chips. As Gazoo noted, the switches connect to a pair of holes made for that purpose on the current revision of the Red boards. Add a 2.2K Ohm resistor and voila, the board is now set up to be used with a 1M EPROM (as two 512K switched zones). I also have plenty of labels for them (I used the same files to generate them at StickerYou as Gazoo did), so yours would also have that nice retro look to them. PM me if you are interested. I will probably have to order a new batch of boards after Chicago, as I assembled all but 5-10 of the Red boards I have on hand (and all but 3 of the Black boards I had left). I still have plenty of ÜberGROM boards though (something in the vicinity of 100 or so).

Darryl--as Bob suggested: try another chip to see if the results are the same. If you have another size/type/brand, that is even better. What you are trying to do here is isolate the problem (chip or programmer), so you need to be able to test multiple objects when possible. Note that all of the chips in the same lot may respond just like your original test chip, which is why using one from a different source is a good idea here.

Here I just thought they lived on a diet of roast coffee beans with a turkish coffee chaser. . .although in my case, I'd be hunting some really potent tea, as I won't touch coffee due to the flavor (it tastes nasty to me, so I avoid it).

I have about 30 fully-assembled Red 512K boards that I'll be taking with me to the Chicago Faire, along with 15-20 Black 128Kx4 boards and 30 Blue ÜberGROM boards. The boards will just need programmed chips and cases to become fully-functional cartridges.

I doubt it has anything not scraped from WHT. . .

Arcturus and Killer Caterpillar mapped into the >A000 space, but they also mapped into the >4000 DSR space to grab control and map the cartridge into the system. I suspect the other cartridges did the same, as did the Kantronics Hamsoft module (another side-port module).

The Solid State Software badge actually had a function. The case mold was the same one as used for the early 99/4 machines--and they had a volume slide in that slot for their internal speaker. The 99/4 quickly moved away from that model and the Solid State Software badges covered the resulting hole. Eventually, a new upper case mold was done and the badge disappeared.

27C160 and 27C400 chips are also 8/16 bit chips as far as their data bus goes. There are not a lot of programmers out there that support that chip type in general. I have an Advin programmer that supports them natively (it has a 42-pin socket), but a lot of others top out with support for 40 pins.

I am Cornholio! LOLOL. . .

That is an interesting observation--I'll keep that in mind as a test for other chips that I get. Many thanks!

I'm working on that. . .I'll probably be done in time for this coming spring.

I just went in via HTTP and got there fine. . . http://ftp.whtech.com/

Definitely unfortunate--we have a lot of fun there. . .

I don't give a rat's a. . .(GARA).

Welcome to the forum. . .and thanks for writing an interesting emulator!

Also, the odd 40-pin chip on there is a special purpose TI chip designed specifically for the /4A by Mike Bunyard. If you look up on WHT, you will find a diagram of the logic for it in the 99/8 documents. Look for HOMBRE. . .

It may be, but this is also the place where the people who have the basic knowledge actually lurk. I would hope that they keep coming back for better reasons than hunting prices on stuff they want to pawn off on other people though. . .

I have a case for a beige Speech Synthesizer, but not the board. It is the same size/shape as a Hex-Bus Interface. . .so a regular speech synthesizer board won't work in it because the case is a bit wider.

Not dumb--that was a learning experience. . .many of us would have made a similar mistake. . .

Pretty much anyone who has a lot of posts here would be able to give some indication--but there are about half a dozen collectors with intimate knowledge of the rarity and probable value of things TI--most of us post here. I've got one of the most extensive TI collections on the planet--and I've been following online sales for this system for more than 15 years.

Ack! A Revenge of the Nerds pic. . .

Best to you and the wife from here as well. I also like the game concept--the AI trying to retake that square will not only sweat bullets to get it back, it'll lob a huge amount of iron into that space in a concerted attempt to vaporize anything that is foolish enough to actually be there. It sohould make for some interesting defensive/armor use strategies for the player trying to hold that space against a full-blown assault.

Here is a nice find fom the 99er website forum earlier today: http://ericlorimer.com/droid99/ A nice TI emulator for Android. It only has 15 pre-loaded cartridges now, but with enough interest, he'll add the option for adding your own ROM dumps to it. . .