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Ksarul

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Ksarul last won the day on January 20 2023

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  1. There is also a very limited LISP interpreter out there for the TI that was written in the late Eighties. . .I think it may have even included the source code in the release.
  2. Nice! Good to know on these boards as well--weak pads can be a major issue. . .
  3. Assuming all goes according to plan, Turtles and I plan to be down that way for that weekend. . .
  4. You could eliminate a lot of them if you defaulted instances with a T corridor to an L unless it fails to connect the room to the grid. . .
  5. These are actually the first external drives TI used, before the switched to the MPI Model 51s. And, as already noted, they could be connected to the sidecar disk controller box (part of the original peripheral train: 32K, RS-232, Video Controller, P-Code, and Disk Controller). I have a whole set of the peripherals, but I do not have one of this style drive. I had a friend with a pair of them though, ISTR they made a humongous chunking sound when they opened.
  6. The various side port cartridges all used the memory expansion and DSR space to operate because of those memory addressing choices (and by using the DSR space, they also circumvented the V2.2 operating system). It is also why the TI GSIM and EGROM Box devices all used a cartridge on a cable to route the cartridge memory space to the devices. This memory quirk dates all the way back to the Dimension 4, it isn't unique to the V2.2 consoles.
  7. I suspect you may have to replace the key switches that don't work with donors from another problem keyboard with the Futaba switches. One note: stay away from any Mitsumi keyboard (most have the beige keys, but there are some with black keys as well). The Mitsumi keyboards used a membrane for key contact. It was the best thing out there when the keyboards were new--but the membranes did not age well and are a serious pain to rejuvenate/repair. Quick tell on Mitsumi keyboards: the bottom of the circuit card is brown and has no visible solder points. There are no resistors on the keyboards either--it is a straight matrix arrangement. Not quite sure what is going on there.
  8. Some serious corrosive activity going on there. . .I hope you had your Hazmat gloves on when you extracted them--and thoroughly cleaned the work surface. That corrosive battery by-product is nasty stuff.
  9. That suspiciously sounds like either dirt or bad clearances inside the switch (the problem symptom will usually be the same for either). One way to test for that is to select the key 40-50 times in a row to see if the movement clears the problem for that key--as that will often clear a dirty set of contacts. Other than that, you "could" try disassembling the key switch to clean it, but I have never done that with the Futaba switches, so I can't give much advice there. Most of the other mechanical switches have the contacts conveniently visible once the key cap is removed, so cleaning them is pretty easy if you are gentle about it.
  10. And that doesn't even figure in the ping-pong movements. I've had packages bounce back and forth between widely separated sorting centers multiple times before they finally escaped the do-loop and made it to my mailbox. Weird is that the local sorting center is usually one of the end points of the ping-pong game. It is like they are tossing the inbound sacks of mail right back onto the truck that brought them in as it returns to the mail center where they started, all to avoid having to sort them that day for waiting customers. . .
  11. I've seen those cases before (I think I may even have one or two). They were intended for video game systems, but the cartridge slots worked perfect for the TI as well. The game machine sat on top of the cartridges and manuals went into the slots at either side.
  12. That one is from @humeur here on AtariAge. I have bought from him many times--he is a trustworthy seller.
  13. ISTR that @OLD CS1 had some really nice manual templates that he put up here a few years ago (both old and new style). I'm not sure if anyone has ever done a really good box scan. The hardest part will be the trays (if you plan on trying to do that). The Navarone-style boxes eliminated the need for a tray (and secured the cartridge with an internal structure) but still made the manual visible, so a single generic box could be used for many different releases. They are also about the same size as the TI boxes.
  14. The RS-232 uses the bog-standard TI9201 charger. They were (and still are) used all over the place and are readily available (in quantity, even). I think the printer-plotter used the TI9203, which is really HTF. There are a few substitutes out there using the same voltage output and connector though. The substitutes are a bit easier to find, but are still uncommon (not rare).
  15. That would be very nice, @ti99iuc. I would definitely be interested in any book I don't have a copy of yet.
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