On Feb 20, 2011, at 2:01 PM, Michael Watterson wrote: > Get a second hand Analogue CRT model if you have only $90 and need a =20 > scope and the PC soundcard isn't good enough. And you have lots of room. Old analog scopes were designed in an age =20 when real estate was a lot cheaper, and they fit in the average =20 college dorm or apartment like an SUV fits in a bike rack. When I saw the TDS210 at Fry's (one of the relatively early "low =20 profile" digital scopes), it was the first time I knew that a personal =20 scope was in my future. (But they're still pricey, even used...) (I wonder how often the precision of a good scope is actually used, vs =20 simpler use as a "visualization tool.") BillW --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .