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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i printed a new panel insert that has two BNC sockets on it (the original probes would have had captive cables)
the tricky part is that this oscilloscope has a 333K ohm input impedance instead of 1M like umm every other scope on the planet. fortunately someone designed a little conversion circuit...
in honor of Sim Wong Hoo, here's a quick historical review of the Sound Blaster! ๐งต
but first we have to go back to their first sound card, the Creative Music System from 1987. (image credit: Bratgoul on Wikipedia)
this card has some special "CMS-301" chips. if you peel back the sticker, they have had their top marks removed. they're actually SAA1099 synthesizer chips made by Philips. Creative wrote music composition software for musicians on the PC.