ooh, an Opticon infrared receiver. these are installed at traffic lights. emergency vehicles have a special transmitter that causes the light to change, giving them priority.
extremely short USB cable on this keyboard
just set it on fire and go home
😬
it's a reel of tiny solder squares
they've begun moving the back part of the store. it's looking pretty empty
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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! 🧵
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.