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About Nateo

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  • Birthday 06/25/1987

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    Buffalo, NY
  • Interests
    Vintage video games, movies, music / guitar, theology, history

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  1. Two games! I imagine that would be quite handy for Time Salvo.
  2. The current CRT I'm using is a stopgap until I get one with better inputs (still waiting on a good deal for a 20" Trinitron). Also, the picture will be improved regardless due to skirting around the finicky RF switchbox that the 7800 uses. Haven't tested straight input, but I will as soon as I am able this weekend.
  3. Ok - so I fiddled around a little more with my 7800, and I noticed something strange. I have the CV signal going into an AV switchbox, which is then going through an RF modulator. I tested switching back and forth between other sources on my switchbox, and when I would switch back to my 7800, the image I was looking for briefly flashed on my screen before it flickered back to nothing. Do you suppose that the video signal isn't strong enough to trigger the RF modulator?
  4. Here's my hatchet job of soldering the UAV in. I feel pretty good about the joints I made on the 7800 board itself, but the UAV is just so much tinier than what I'm used to, so it has a few little scars on it. I used a 3.5mm stereo jack for the composite video and mono sound signals, using a 3.5mm to RCA cable to connect to the television.
  5. I'm fairly certain that it's just that the UAV is very small, and my soldering skills are only slightly above beginner. But I'll get those pics of the install so we can figure out what exactly went wrong and I continue to improve my skills!
  6. I just tried a UAV install this weekend, and it ended up not working for me. Got a few gray bars, then nothing. I checked continuity between the board and the 7800, and everything seemed to be a-ok. I even checked to see if I accidentally created a solder bridge, and that didn't seem to be the case. RF still works (picture wise, anyway). I followed the PDF at the beginning of the thread - is there a common problem or rookie mistake that I may have made?
  7. Just released my podcast recapping the event: https://thegeekiverse.com/listen-memory-machine-39-midwest-gaming-classic-2019/
  8. Do I? Boy howdy, I have too many pong consoles, including: Odyssey 400 Sears Tele-Sports II APF Tv Fun Coleco Telstar Alpha Radio Shack TV Scoreboard Atari Video Pinball I also have a AY-3-8500 pong chip that I intend to use in an electronics project. I love the mid-century modern asthetic of those machines.
  9. New-old stock of the chip can still be bought on ebay. I bought one myself just to use in a little electronics project.
  10. Thanks for posting the interview! It was a total pleasure getting to interview Mr. Harrower. I'd ask him more about his involvement with the Intellivision, but he's currently in the middle of moving.
  11. Hey all - I posted this is the Dedicated Systems forum, but since that section is undervisited, just thought I'd post it here as well in case there's others who might be interested. Anyways, I managed to find and interview the inventor of the AY-3-8500! It was very enlightening to learn about major developments in video gaming outside of Silicon Valley. https://thegeekiverse.com/interview-with-gilbert-duncan-harrower-inventor-of-the-pong-on-a-chip/
  12. Nevermind! It's all fixed and working. Looking at the schematic, I was performing a bit of an overcorrection with regards to the yellow color burst. I just wired Phase B to pin B of the modulator, and it was good to go!
  13. I was fixing a friends CoCo2 "yellow bar" problem by replacing the 555 timer. The fix worked initially, but when I put it all back together, the colors were off, appearing too yellow. Wiggling the RF modulator temporarily restored the correct colors. It looks like the colors are too yellow. Would that be a problem with Phase B (pin 10 of the 6847) not making proper contact with the RF modulator?
  14. Hey all - just released my interview with Duncan Harrower, the man who invented the chip that made all those Pong clones run! https://thegeekiverse.com/interview-with-gilbert-duncan-harrower-inventor-of-the-pong-on-a-chip/
  15. I've been looking to repair an APF TV Fun console I acquired some time ago, and now that Ive put together some decent electronics skills, I thought Id make an attempt. It's based off the ubiquitous AY-3-8500 and the data sheets are readily available. The issue with it is that the left paddle doesn't appear on screen. Everything else seems to work ok - though everything does seem slightly dimmer than usual. And a little brighter when the right paddle and the screen boarders overlap. I replaced the electrolytics, and the traced from pin 10, and everything seems a-ok on that front, but the problem remains. Any ideas?
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