Are they usually expensive? I see at least 10 every time I go to the I-80 fleamarket and always want to pick one up but I don't know how much to offer. I'd think they'd probably take 20-30$ but I didn't want to offer that if I should be able to get a 20-40 year old oscilloscope for 5$. They look super old but I figure electricity hasn't changed much in the last 40 years has it?
I will probably need one for later on in college for all my tinkering, once I get into the advanced electronics classes. I was just curious what I should offer for one.
