EEVblog #553 - Mailbag

DIN 41612 Roth Electronics Extender Card: http://docs-asia.electrocomponents.com/webdocs/068f/0900766b8068f80e.pdf
Lichtenberg Figure: http://en.wikipedia.org/wiki/Lichtenberg_figure
http://focusdesigns.com/ Self Balancing Unicycle
Tektronix 213 oscilloscope: http://www.teknetelectronics.com/DataSheet/TEKTRONIX/TEKTR_21325410.pdf
http://www.testequipmentconnection.com/specs/Tektronix_213.PDF
http://w140.com/tekwiki/wiki/213
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