let's take a break from computers and electronics, and go on a trip! a trip to San Jose. this is one of the rare little spots that's not overdeveloped. you can easily see the East Bay hills. Image
it's starting to feel a bit like the wild west. Image
railroad tracks and buzzards. if you look very carefully in the background, you can see the airship hangars at Moffett Field. Image
dirt roads and signal-free railroad crossings. this is definitely the wild west. Image
oh look, a house! we've arrived at the Bay Area's only ghost town, called Drawbridge. in the background you can see the Tesla factory. Image
a couple more houses in Drawbridge, behind the railroad trestle. there are no roads leading to the town; in the old days, you'd take the train. Image
i've written about Drawbridge before.

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More from @TubeTimeUS

6 Oct
today on the bench of healing: this Behringer S16 that decided to kick the bucket. so I think I'll take a crack at fixing it. 🧵
symptoms are: channels 1, 7, 12, 13, and 14 have a lot of attenuation. the unit also decided to attenuate nearly every channel by 40dB during sound check.
oh that's a lot of parts. but I think I see a problem already
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3 Oct
here's something neat, and it was almost an Apple product! 🧵 Image
the lid opens and folds underneath, revealing the nice large screen, still with the protective film. should I remove it? Image
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on this relaxing saturday afternoon i was digging through my collection of vintage 3" cathode ray tubes (as one does) and i found a *very* unique item! 🧵 Image
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it's got the IBM logo on it, and the outside is coated in a conductive metallized layer... Image
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22 Sep
a friend of mine has one of these (PVM-8044Q) and he's having issues with the degaussing circuit. it turns out the degaussing circuit is really interesting 🧵 Image
here it is. looks a bit tricky, so let's explore it a stage at a time. Image
these resistors and the capacitor form a simple RC circuit. it charges and discharges as the power rail (thick line at the top) turns on and off. ImageImage
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16 Sep
this ISA card is not what it seems! 🧵
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does this look like a SCSI connector to you? it's got 78 pins.
Read 7 tweets
6 Sep
i haven't done a cross section in a while! here's one of a kernel of corn. i found it at the bottom of a bag of popcorn.
and here's the annotated cross section of the kernel of popping corn. this one didn't pop so i cut it in half.
ok here is the *real* annotation. i'm no botanist so there's probably cool stuff i left out.
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