A look at what is currently available on eBay ARM V2 DSO203 Digital oscilloscope 4 channel (Aluminum Case) ,Silver/Black US $165.99 Tektronix TDS3054B Digital Phosphor Oscilloscope; 500MHz, 5GS/s, 4-channel – Tek US $3,900.00 Tektronix TDS 1012B Two channel digital storage oscilloscope 100MHz/1GS/s US $800.00 MDSO USB Bandwidth 20M Dual-Channel Digital Storage Oscilloscope + Data Logger [...]