> As part of the SF Bay Area Maker Faire this weekend, I'll be showing a > Thunderbolt GPSDO and a FE-5680A Rubidium disciplined oscillator, both > connected to a $25 flea-market oscilloscope. Can you really get a useful scope for $25? What's it like? What's a low end A/D on a USB dongle go for? -- These are my opinions, not necessarily my employer's. I hate spam.