PWM Testing Equipment

[MrForbes]

Originally Posted by Ether

Plus it just might inspire a student or two. I still remember how inspiring it was the first time I built a simple RC circuit and saw the waveform on a glowing green oval CRT screen. It made physics come alive for me.

My brother manning the scope, me on the probe.....circa 1974 (I might have us confused, we look alike). We built the scope, using surplus parts, 4 tubes plus the CRT. Non-linear (and dangerous) as heck, but it made wavy green lines!