@misc{noauthor_two_2013,
	title = {Two {Very} {Old} {Hand} {Held} {Calculators}. {Royal} {Digital} {II} and {Radio} {Shack} {Brand}},
	url = {http://www.youtube.com/watch?v=M5e2snnVggA&feature=youtube_gdata_player},
	abstract = {Royal Digital II, Royal Typewriters, Hartford, CT. About 1971. Four functions, Four separate Blue Fluorescent tubes. NiCad batteries, wall adapter. Made in USA.

Radio Shack 4 function plus square root and sign change. Fluorescent long tube display. 1977. Uses just 2 AA batteries plus optional wall adapter. Made in Japan.
Model EC-380 from 1977. Cost a whopping \$ 24.95},
	urldate = {2014-03-27},
	month = aug,
	year = {2013},
}

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