@jippie There's a TV show here that does that. Somebody sends them a gadget. The show has a group of supposedly smart and funny "famous" people try to guess what it is while making supposedly funny comments.

I like to watch because they get some really odd ball gadgets.

But, they drive me up the wall because the viewers out in TV land (me) don't get a good view of the gadgets.

I like trying to guess what the gadgets are for before the moderator reveals it.

But, the camera is always on the "funny" people. The viewers get a fuzzy view as the gadget is being handled.

All of that to say: it is hard to identify a gadget from one picture.

O/

I could use some help, fast. Given a rlc mixed circuit, imgur.com/a/JHXYBYj how to approach calculatng it's resonant freq?

I can't just use 1/sqrt(LC), can I?

@jippie Adam is probably right. I found such a product which really looks like yours:

flipkart.com/…

@RandoHinn That would be your "ω0" value yes. You could also run a frequency sweep and see where the curve peaks.

@JRE There's also a mystery tool game on youtube