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Ksarul

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Everything posted by Ksarul

  1. It took me quite some time to acquire a BASIC-1 cartridge for mine. . .and I also have BASIC-1 for the Pyuuta (that comes in the same case as a Parallel Printer Interface, so it is a nice, multi-function plug-in). The Printer Interface for the Mark II is a separate plug-in box (and yes, I have one of those too).
  2. I am gathering the data I need to reproduce it. I now have permission to do so from the original developer. As already noted, the board won't be a major problem--but I still have to do some hunting to source a suitable case.
  3. Based on the picture and my experiences with these adapters BITD, it is actually an original 99'er Ware TI-Sette Adapter. They were quite common in the era of mostly cassette operations. . .
  4. It is one of the ones I was thinking of. Statistics is another. . .and I seem to remember seeing somewhere that almost all of the Scott, Foresman cartridges were in BASIC as well.
  5. Note also that several of the earlier TI cartridges were coded in BASIC and used the BASIC Interpreter to execute. The process for that was described in one of the system design documents and specifically allowed for weirdly large programs stored in GROM.
  6. I'm pretty sure the PHD5076 routines are the same ones used with the TE-II module. They were also used in the Berlin PEB Speech adapter from Winfried Winkler and in the later SNUG Speech card. I may have a copy of Utilities I. If I do, I'll check the manual to validate the contents.
  7. The disk manager for the WDS-100 (yes, @Schmitzi, the Personality Card) is probably the craziest kludge of a disk manager ever written for the TI. It was an Extended BASIC program with embedded Assembly routines. If more of them had been sold, later disk managers might have supported the WDS-100, but the price was just too steep for it to get any kind of market penetration. I think that was one of the reasons Myarc regrouped and developed the HFDC.
  8. The disk manager that was initially supplied with the MPES-50 was the TI Disk Manager II cartridge. Later, they supplied their own Disk Manager III on disk.
  9. I may have to pull out my original copy of that issue and rescan the whole thing in color. . .as the originals have always been pretty hard to find, making a crisp copy somewhat more important.
  10. This one led me on a nice adventure--and along the way, I seem to have found pointers to the 8 Pyuuta cassettes released a few years ago, along with the Pyuuta Fanzines (I believe there are 7 of those). I also saw what looks to be a replacement keyboard with membrane for the Pyuuta in one of the displays I saw pictures of. Is that still available anywhere?
  11. Ksarul

    Eye Candy

    So nice that there are more of these out there--I had only ever seen Volumes IV through VII in the scans Ernie made. I think they showed up in a catalog somewhere as well, but that was the only evidence I'd ever seen that they actually existed outside of a crazy-priced eBay auction I saw about ten years ago (they wanted something like $1,000 for a console, speech, and a handful of books).
  12. Barry showed me how to port Tutor/Pyuuta games to the Geneve a few years ago. The method works great with any of the 8K/16K games. I used his method to port a bunch of the Pyuuta games over to the Geneve that way and posted the images here on AtariAge.
  13. Ksarul

    CROM

    Oliver is here on AtariAge, so he might just answer you.
  14. When looking at germanium diodes, the Russian D9K is a drop-in replacement for the 1N34A, and based on my experiences with them in Horizon 4000Bs, they are always on-spec.
  15. It is always good to see the Pyuuta/Tutor see some love. At this rate, there will be more homebrew games for the system than original releases in a few years!
  16. On operations above 1M--the control circuitry works perfectly in 4M mode. The problem comes with the memory chips it was designed to work with. The 2M Zeropower RAM (or NVRAM) chips are super finicky, especially as the majority of them available for sale are used. The used part isn't a major problem in and of itself, as the SAMS card doesn't care if the memory is backed up or not--so a dead battery isn't a problem as long as the RAM still works. Carefully cleaning the leads and soldering the memory chip to the board without a socket seems to be the best formula for getting the board to work in 4M mode--and assums you have two good chips. We have built several of them this way. Socketing the 2M chips results in just about every chip exhibiting some kind of problems (even the four new ones I bought as reference chips). The real issue is cost though. The memory chips are generally unavailable for less than about $25 each, with no guarantee they still work (used). New chips are about $120 each, directly from the manufacturer (Maxim still makes them). When I can get a pair of 512K chips for about $8 each (worst case), that makes a serious difference in total board cost without a lot of gain at this point, as almost all existing SAMS software is designed for use in 1M or less. I may eventually do a redesign that expands to 4M or even 8M using 512K chips, as that would actually be a lot easier to build and support. As to online information, pretty much everything on it can be found here on AtariAge (and I haven't really taken the time to put anything on the website I own yet). The board is actually a further development of the original Asgard AEMS and Southwest 99er's SAMS cards, as desgined by Jim Krych. The newest boards maintain full backwards compatibility with them. Arcadeshopper also has a sidecar variant for use by folks without a PEB. There are now enough of all SAMS variants in the wild that it is becoming a base requirement for a lot of newly developed software.
  17. You asked in the right place, as I designed that board. . .it is a 74LS373. Here is the schematic for the board you have. One note: being semi-brain-dead when I was marking the IC numbers on the board mask, I listed U16 and U17 (schematic) as U17 and U18 (board). I'll fix that with the next board run, but is something to be aware of for now. A3-SAMS-P1(R5a).pdf
  18. As soon as you replace the TMS9918A with the TMS9928A, you basically lose composite video out, as it is replaced with component video out. This is a function of the video chip, so there isn't really an easy way around the issue. You might try and build a daughter board that pulls all of the signals from the video socket up to it--and set up some kind of switch between a 9918A and a 9928A, but that would probably get complicated fast. . .
  19. I think the format for the graphics may have actually been in one of the three CSGD manuals. I went looking for mine tonight but I only found my manual set for the Printer's Apprentice and all of my manuals for Asgard's PagePro (There are about 20-30 of the PagePro manuals).
  20. I have plenty of bare 4000B boards in hand. I have some others that are assembled and ready for test, I just haven't had much in the way of hobby time since Thanksgiving. . .and most of the time I did have was devoted to trying to track a problem in a batch of SAMS boards that I am still trying to run to ground.
  21. Considering that the TI card is probably not worth more than $50 or so, as it is a single-density controller, the Horizon is seriously overpriced. The physical version of the board is an early revision, but they are only of interest to someone trying to get a physical copy of each board type (and I can probably count the people trying to do that one one hand). Anyone looking for a Horizon now would probably lean towards one of the currently-available 8M Horizon 4000Bs for their PEB, as the price for the larger-capacity board is about the same as he wants for the lower-capacity board. He may still find a collector willing to pay his price, but I'm not too optimistic there.
  22. I discovered something interesting this week. Apparently, TRONICS had a newsletter that they provided to their resellers to keep them motivated, give them practical sales tips, and to tell them about new and upcoming products in the TRONICS catalog. I recently obtained Vol 1 No 3, which I will have to scan in soon, along with the other TRONICS items I've been accumulating over the last couple of years.
  23. The version I put on WHT a number of years ago (in two parts) is the original release of the Servicing Manual, and is focused on the 99/4. It has relevance to the later ones though, as it has some waveform data that got dropped--and which might be useful. The 1982 release is for the 99/4A, and the 1983 release adds data for the QI consoles. I recently acquired a large schematic set for the 99/4 and the sidecar peripherals. I need to scan these in once I can get to a large-format scanner again. . .one bonus is that the set includes a schematic for the p-Code sidecar.
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