Tube Time @TubeTimeUS
vintage computers, tubes, the MOnSter6502, cross-sectioned electronic parts. coauthor of https://t.co/lquWXu6v7m. ⚠ please read https://t.co/PrGDtiV6c5 tubetime.us Silly Valley Joined May 2011-
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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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fun fact! the numbers in coin cell part numbers are dimensions. a CR2025 is 20mm diameter and 2.5mm thick!
with this One Weird Trick, turn a CR2032 into a CR2016
with this One Weird Trick, turn a CR2032 into a CR2016
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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@TubeTimeUS It's tough because a lot of new retro projects like the higher end versions of the RC2014 still use Z80s. It will be sad when building one of those designs is as hard as the HD6120 PDP-8 SBCs I did where I paid a ton for surplus CPUs from a place in Hong Kong to make 60 kits.
You had me at Rochester...
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.
@TubeTimeUS @lukeweston "Package up old wafers" is far more common than one might think. Wafers are made in runs, tested, and the wafers + probe maps kept in 'wafer bank' until packaged, possibly decades later. When EOLed/scrapped, it can effectively be a bank transfer :-)
@TubeTimeUS To be fair, the PCN is for the end of the Z84C00 family, the CMOS parts, which were introduced ca. 1985. I bet the NMOS parts have been EOL for some time already.
@DanDermodyLLC Hi Dan! Strangely enough, my background is in software, not hardware. As for the things I work on, some are for the Computer History Museum, some are with @curious_marc and @TubeTimeUS, and some are my own projects.
I just found that the authors are on Twitter! Thanks Eric Schlaepfer (@TubeTimeUS) and Windell H. Oskay (@EMSL) for an awesome book :)
Today I have learnt something, resistors don’t work how I thought they did! What an incredible book and I’m only on page 16.
@TubeTimeUS I'm so glad you have these. Can you tell me the distance between the terminals on your car battery to the nearest 0.001mm? I'm taking a survey. TY!
@diggya @TubeTimeUS I love 18650s, but gotta shout out to the 14500s for being the right size to either explode or supercharge devices that take AAs
@marcrygamerbr @TubeTimeUS he's shorting them out for science
Open Circuits (3/7) 🧵 Authors : Eric Schlaepfer (@TubeTimeUS) and Windell H. Oskay (@EMSL) “The inner beauty of electronic components”
@aggarwal_pallav Got mine before Christmas, a gift to myself. Photos are incredible. @TubeTimeUS
@TubeTimeUS got it for Christmas and I love it!!! If you are looking for someone to translate it into German, let me know. I will do it for free so more people can enjoy it.
@TubeTimeUS It is very pretty, Eric, I'm glad it's getting recognition :-)
I bought @TubeTimeUS's book and it's soo damn good 💯
This book is on the 2023 wishlist of nearly every engineer/tinkerer (whom I personally know)—and a few artists and designers, too. If you’ve ever disassembled your parents’ appliances as a kid to see how they work, or marveled at a circuit board, you already know why. 🪛🛠️💻
couldn't ask for a better review! thank you so much for the kind words, @doctorow .
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