new pickup! an NEC MultiSync (the original) it is very dirty ๐
made in 1986!
on the left is the my existing monitor with the stand i 3D printed. i made the design with only a few grainy pictures of the real stand for reference. not too shabby!
the inside doesn't look too bad.
well look at that, it works! the strange warping effect is a camera shutter artifact.
only thing broken is this switch on the back. ๐ค
argh, I have a replacement but it is vertical, not right angle.
i mean this is a bit disappointing but also i am amazed i have a switch that is this close ๐ค
well, think I'll spend some time digging into this.
this is an odd component. it looks like a diode array.
yup, broken
it's a 4-pole double throw switch.
3D printed a replacement lever
let's see how well this holds up
there. not half bad.
I spent an hour cleaning the case before I put this back together. here's what the switch looks like now.
looking good
โข โข โข
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picked up this absolute beast of a hard drive. this is the Maxtor XT-2190! it stores 160MB when formatted. this was huge for 1987.
it's got 4 defects. they give you those numbers on the label because you have to manually enter them when you low-level format it!
I'm not sure it's working because the drive's logic board isn't screwed down. and it's missing the insulating spacer so it can just short out against the metal case ๐
i've been thinking about digital counters for state machines lately. probably because of the interesting counter design that i found in the IBM CGA card (schematic below). ๐งต
but back to a basic digital counter. it's simple, right? you just count up in binary. 000->001->010->011->etc. but there are some disadvantages of doing it this way.
in digital logic, be it in an FPGA or discrete TTL chips, the basic idea of a design using synchronous logic is that you have flip flops that store your "current state" and then combinational logic that take the current state and generate the "next state".
did you know that just 5 miles from the shining skyscrapers, the overpriced single family homes, and the congested freeways of Silicon Valley is a real, bona-fide 19th century ghost town? ๐งต
it's called Drawbridge, California, and it was built around a railroad drawbridge located in wetlands out in the middle of the San Francisco bay.
it all started when the original drawbridge was built in the 1880s. in the days before remote control, a tender had to live onsite and operate the bridge, opening it for ships and closing it for trains.