Submissions from righto.com

		Two bits per transistor: high-density ROM in Intel's 8087 floating point chip (righto.com)
		93 points by magnat 17 days ago \| past \| web \| 13 comments
		Bad relay: Fixing the card reader for a vintage IBM 1401 mainframe (righto.com)
		23 points by robin_reala 18 days ago \| past \| web \| 1 comment
		The printer that wouldn't print: Fixing an IBM 1401 mainframe from the 1960s (righto.com)
		129 points by rbanffy 30 days ago \| past \| web \| 48 comments
		Glowing mercury thyratrons: inside a 1940s Teletype switching power supply (righto.com)
		131 points by eaguyhn 37 days ago \| past \| web \| 49 comments
		Glowing mercury thyratrons: inside a 1940s Teletype switching power supply (righto.com)
		4 points by kens 38 days ago \| past \| web
		Inside the die of Intel's 8087 coprocessor chip, root of modern floating point (righto.com)
		226 points by ingve 63 days ago \| past \| web \| 73 comments
		[flagged] Hacker News comments I'm tired of seeing (2013) (righto.com)
		38 points by mtmail 88 days ago \| past \| web \| 34 comments
		Silicon die analysis: inside an op amp with interesting “butterfly” transistors (righto.com)
		109 points by tubetime 3 months ago \| past \| web \| 39 comments
		Inside the 76477 Space Invaders sound effect chip (righto.com)
		151 points by reportingsjr 5 months ago \| past \| web \| 29 comments
		Bitcoins the hard way: Using the raw Bitcoin protocol (2014) (righto.com)
		2 points by walterbell 5 months ago \| past \| web
		Solving FizzBuzz by generating raw video with an FPGA (righto.com)
		3 points by zdw 6 months ago \| past \| web
		A 1970s disk drive that wouldn't seek: getting our Xerox Alto running again (righto.com)
		2 points by eaguyhn 6 months ago \| past \| web
		A 1970s disk drive that wouldn't seek: getting our Xerox Alto running again (righto.com)
		6 points by robin_reala 6 months ago \| past \| web
		Reading a VGA monitor's configuration data with I2C and a PocketBeagle (righto.com)
		121 points by robin_reala 6 months ago \| past \| web \| 24 comments
		Implementing FizzBuzz on an FPGA (righto.com)
		261 points by jf 7 months ago \| past \| web \| 60 comments
		Repairing the card reader for a 1960s mainframe: cams, relays and a clutch (righto.com)
		140 points by zdw 8 months ago \| past \| web \| 65 comments
		IBM mainframe tube module part II: Powering up and using a 1950s key debouncer (righto.com)
		88 points by robin_reala 9 months ago \| past \| web \| 25 comments
		Xerox Alto's 3 Mb/s Ethernet: Building a Gateway with a BeagleBone (righto.com)
		153 points by jf 9 months ago \| past \| web \| 43 comments
		Inside the ubiquitous 741 op amp (righto.com)
		1 point by brian-armstrong 9 months ago \| past \| web
		An 8-tube module from a 1954 IBM 705 mainframe: it's a key debouncer (righto.com)
		137 points by fanf2 9 months ago \| past \| web \| 56 comments
		Xerox Alto zero-day: cracking disk password protection on a 45 year old system (righto.com)
		240 points by jjwiseman 9 months ago \| past \| web \| 64 comments
		Inside the Ubiquitous 741 Op Amp (righto.com)
		5 points by brian-armstrong 9 months ago \| past \| web
		Repairing a 1960s mainframe: Fixing the IBM 1401's core memory and power supply (righto.com)
		145 points by fernly 9 months ago \| past \| web \| 18 comments
		Repairing a 1960s-era IBM keypunch: controlled by mechanical tabs and bars (righto.com)
		23 points by sohkamyung 10 months ago \| past \| web \| 6 comments
		Lacking safety features, cheap MacBook chargers create big sparks (righto.com)
		4 points by prando 10 months ago \| past \| web
		Mining Bitcoin with pencil and paper: 0.67 hashes per day (2014) (righto.com)
		642 points by dvt 10 months ago \| past \| web \| 156 comments
		Creating a Christmas card on a vintage IBM 1401 mainframe (righto.com)
		4 points by ingve 10 months ago \| past \| web \| 1 comment
		Creating a Christmas card on a vintage IBM 1401 mainframe (righto.com)
		2 points by frostmatthew 10 months ago \| past \| web
		Creating a Christmas card on a vintage IBM 1401 mainframe (righto.com)
		2 points by robin_reala 10 months ago \| past \| web
		Creating a Christmas card on a vintage IBM 1401 mainframe (righto.com)
		84 points by sohkamyung 10 months ago \| past \| web \| 20 comments
		More