Скачать с ютуб Working on a Super Rare TI-99/4 в хорошем качестве

Working on a Super Rare TI-99/4

The TI-99/4A is a really cool machine with a pretty terrible design, but you know what would make it even better? If it was way worse! The TI-99/4 is what predated the 99/4A and it’s an incredibly rare machine, with only around 20,000 units built. The 99/4A get’s the “A” in its name from the TMS9918A Video Display Processor, or VDP. But, the 99/4 uses a TMS9918 (no A), which is why it doesn’t have an A in it’s name. The 9918 is much worse though, lacking a bitmap mode. Throw in the weird chiclet keyboard, and the 99/4 is worse in everyway, except for rareness and coolness. And I love rare and cool. So, let’s see if we can get this machine going! (Spoiler alert, we don’t…) If you want to support the channel please hop over to Patreon:   / usagielectric   Also, we now have some epic shirts for sale! https://my-store-11554688.creator-spr... Be sure to check out RetroBits right here on Youtube:    / @retrobitstv   Come join us on Discord and Twitter! Discord:   / discord   Twitter:   / usagielectric   Intro Music adapted from: Artist: The Runaway Five Title: The Shinra Shuffle https://ocremix.org/remix/OCR01847 Thanks for watching! Chapters 0:00 It’s good to be back 1:17 Introduction 4:11 TI-99/4 vs. TI-99/4A exterior 6:25 Disassembly 7:53 TI-99/4 vs. TI-99/4A interior 10:10 Cleaning 11:35 We’re gonna need a monitor 12:54 Monitor disassembly and cleaning 13:53 First test 16:06 Troubleshooting begins 16:45 A bad video circuit 19:40 A bad 74LS138? 21:35 A bad 4116 RAM chip 24:45 We’re getting there, just not there yet 26:10 Bunny!