Most recently this has meant an LED array or an OLED screen, but [Thomas] has gone one better than this with a CRT television converted to perform as a rudimentary oscilloscope. The last ...

Rear-projection TVs (RPTVs) were developed to extend the size of the CRT TV, which for practical purposes maxed out at 36" (larger units weighed several hundred pounds). Introduced in the 1970s ...