sent by a friend a while back, i think they took this photo on the job
Did you just, like, fire up your old analog oscilloscope to prove a point?
Thats kinda my main scope i am poor like that .__.
I grabbed it out of the trash a decade ago and it worked fine…bonus is the nice smell of old transformer isolation that emerges from it.
I think this effect should work too on a digital one, its basically just 2 audio signals displayed as X/Y mode.
A good digital scope may, the cheap ones, not so much. Analogue is king for these.
I see your uwu and raise you a :3
:3
uwu
-uwu-
This looks like what you get if you subtract a sine wave from a square wave
meow :3
My hearth beats :3
I have heard, but have trouble finding references to it, that you can build a simple arbitrary waveform generator circuit by using an analog scope, a photodiode, and a cardboard cutout.
You make a photodiode circuit that rails high with no light, but light on the photodiode pushes the signal low. Then you aim this at the phosphor screen with a cardboard cutout of the desired waveform: signal goes up until the phosphor trace is above the screen, and then it gets pushed low (i.e., feedback keeps the trace right on the edge of the cardboard).
Never seen it in action, but I choose to believe it works beautifully :)
as a control systems engineer, I agree but also the math is fairly linear, I could probably reproduce that image.
