junk store time! Image
use only white wire. wat Image
😶 Image
has problem Image
mystery meridian box. I've always hated 5-pin DIN being used for power. it's an accident waiting to happen Image
60 pin D-sub Image
wow tester? Image
hmmm these look familiar Image
not what I expected to find Image
looks like a cellphone base station Image
can't find any info on the interwebs Image
that's a big wire stripper Image
a cape for Arduino??? c'mon, capes are a BeagleBone thing. Arduinos use shields. Image
just plug this into your PC power supply Image
a lot of people want to know what store this is.
excesssolutions.com
they're located in San Jose, and they're basically the last surplus store left in Silicon Valley.

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More from @TubeTimeUS

19 Jun
let's try and get this paper tape reader working. I have no control board for it so this is going to be interesting Image
here's a 4-phase stepper motor driver from another project. I actually got this working a while back, so I can move the tape precisely in either direction. Image
this is the illuminator. it shines light through the holes in the paper tape up into phototransistors Image
Read 10 tweets
17 Jun
first tentative steps towards Tandy graphics on the Graphics Gremlin.
the lines are doubled because the high memory address bit isn't hooked up. Image
640x200 with 4 colors is working! that was a very simple change. Image
320x200 at 16 colors is almost there. timing is a little off. Image
Read 5 tweets
15 Jun
this keyboard may need to be cleaned.
textured dirt
let's try a melamine sponge and a little water
Read 13 tweets
5 Jun
the tower of power just got taller, @Foone

now it won't fit on the shelf. 😂
this gag has really gone sideways
oh btw don't ever plug your phone into the untrusted jack.
Read 4 tweets
5 Jun
here's an interesting package that came in from Bulgaria! let's find out what's inside...
haha this box used to be a different box 😂
it's an IBM EGA graphics card!
Read 28 tweets
29 May
this is a picture of the worst day of a professional engineer's life. 🧵
yes, it's the Florida International University pedestrian bridge collapse. it came down during construction due to critical design flaws. unfortunately several folks lost their lives.
there is a very good illustrated digest that the NTSB created about their investigation of the collapse.
ntsb.gov/investigations…
Read 38 tweets

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