A question for you: if the cathode ray tube had never been invented, what would an oscilloscope look like? We’re not sure ourselves, but it seems like something similar to this mechanical tachyscope ...

That’s a sexy way to use parts from an old oscilloscope. [Aaron] took his inspiration from another project that was using CRTs from old oscilloscopes. Now he’s giving back with a site dedicated to ...

The main feature of this oscilloscope is its size that measures 164x83x83mm while using 1-inch diameter CRT and valves but without the use of any transistor. The version of this Tiny Scope consists of ...

Introduced by RCA (Radio Corporation of America) in November 1936, the 913 CRT (cathode-ray tube) created a minor stir in the electronics community. RCA initially priced the 913 at $5.60 ...

Scope displays of this nature seem like a given to us today. Yet, old-timers will remember a day when the cathode-ray-tube (CRT) displays of oscilloscopes were not so capable. In fact, to capture an ...

What's an electromechanical oscillograph? What model ushered in the era of the real-time digital oscilloscope? Examples of the latest powerful equipment. Able to graphically display a range of ...