I got another oscilloscope from a ham fest.

I picked this little scope up from the Seapac swap meet a week and a half ago for $3. It turns out that all it needed was some contact cleaner to get it working again.

This is a portable scope that can run from 12V DC as well as an internal battery. I don't have the battery for it, but I could probably put some 18650's in there if I disable the built in charger.