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About dhe

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  1. dhe

    Eye Candy

    Load your OS like a 990!
  2. I remember the exact same case from 30 years ago, in that particular case, the fix was easy, someone had gotten gunk on a particular set of fingers on the expansion card - I should have wrote down which ones - a little work with a gum eraser and if was 'fixed'. So, it's kind of a pain, but if you have the schematic, you might check continuity from both the fingers and the expansion port side, to what ever chip/pin is their first stop.
  3. Interesting.... If you zoom in, it says - Screen 0 - 59(h). Shiver me timbers, forth in single sided, I'm guess a guru can tell us the density.
  4. dhe

    Eye Candy

    CorComp 9900 Micro-Expansion Unit (A Cute Couple)
  5. Tim breaks through to second level on memex test!
  6. I'm in the process of restoring and old NES Console. NES all have cartridge contact issues because of age and wear. One of the things that is recommended is use liquid bar keepers friend to polish the cartridge contracts. Has anyone used that to clean 4a cartridge contacts?
  7. dhe

    F18A DIY?

    Thanks for the debugging tutorial Hans. I didn't know that was the screen you got, until the host was initialized. It's always easy when others do the work, but it is still good information to know.
  8. Any chance of getting some boards out to the community soon?
  9. >They are likely copies A bit off topic, but how does one make working copies?
  10. Globeron, What happens if you try to copy all the gpl files from your GoTek to your Horizon, only using the GeneveOS copy command, leaving GDM2K out of the loop?
  11. My past experience has been that these heat sinks: Will work with the component layout of almost any TI card. These: Will often times NOT fit (they bump in to things on the board). I guess I need to pull a screw and nut off an existing board and figure out the right specs for each and order the heat sink and screw and nut separate. I saw the silicon pads, what I had done in the past, was a thin coating of thermal paste between the back of the regulator and the heat sink, then tightened them down. I'm guess the silicon pad is if there is some fear of shorting, because I don't think silicon conducts heat very well....
  12. There was a guy in England that re-implemented the TMS9902 in programmable logic. I traded several emails hoping he would either sell them individual or let me buy a lot and resell them, but eventually the emails trailed off. I find the implementation of old chips with new silicon fascinating - like the F18A, or the Commodore SID chip.
  13. Nope that is exactly what I took a picture of. BUT, I'm looking either for these with a screw and locking nut, or the screw and locking nut separate.
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