I started working on the nev version prototype, which will be really simmilar to the Tektronix TR210. For use you will be need an oscilloscope to display the curves.

It will have:

• 2 channel
• 6 voltage ranges
• 3/6 frequancy ranges
• will work both 230V and 110V AC

I still have to finish the pcb designe, and manufacture them.