Tube Time on ๐ฆโ
@TubeTimeUS
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vintage computers, tubes, the MOnSter6502, cross-sectioned electronic parts. coauthor of https://t.co/lquWXu6v7m. โ please read https://t.co/PrGDtiV6c5
Silly Valley
Joined May 2011
RT @curious_marc: I am leaving X and have moved over to BlueSky. My user name is CuriousMarc and my handle is @curiousmarc.bsky.social.(@keโฆ.
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RT @pascal_gujer: In the @BlackHatEvents Book Store you can find "Open Circuits" - a wonderful @nostarch book about the internals of variouโฆ.
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sometimes they look like this. it's perfectly natural, nothing to be ashamed of.
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RT @lixielabs: I need a breadboard that fits all the newer microcontroller dev boards that are gigantic like the ESP32 Dev Kit boards or FPโฆ.
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after cleaning a couple of dirty contacts and freeing up the solidified grease on the subtract pawl here on the coin unit, the machine works again!
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these old electromechanical pinball machines are tricky to work on. (yes i am aware of the Technology Connections video)
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it's a really crazy design, like there are differential signals going all over the place even with some length matching. gotta be at the picosecond level.
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here's a cool photo of a chip. this one is special because it's a real old-school photograph that i fed through my scanner.
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RT @kenshirriff: I received a mysterious aerospace computer from the early 1970s, probably for navigation. It is crammed full of flat-packโฆ.
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many of you are mourning the Z80 CPU (recently discontinued after a nearly 50 year run). all is not lost--i bet Rochester will take up the torch. as according to the prophecy, Rochester will soon be the last remaining US semiconductor company.
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RT @TubeTimeUS: fun fact! the numbers in coin cell part numbers are dimensions. a CR2025 is 20mm diameter and 2.5mm thick! .
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with this One Weird Trick, turn a CR2032 into a CR2016.
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too thick? it's easy to compress it in a vise, like so.
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fun fact! the numbers in coin cell part numbers are dimensions. a CR2025 is 20mm diameter and 2.5mm thick!
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cross section of a high power electric car charging cable. the electric current is so high that the copper wires would overheat, but coolant flows through small tubes in the center of each wire.
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and weโre all caught up! iโve got a bunch of projects planned for next year -- be sure to follow me on Mastodon!. thanks for coming along with me. best wishes to you all for a happy 2024!.
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most recently, i reverse engineered a rare Apple II sound card (a sampler) using some blurry photos AND ARTWORK ON A RECORD ALBUM COVER!!
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