[Test-Equipment] "transistor esr tester"

[David DiGiacomo]

I suggest this one:

http://www.ebay.com/itm/GM328-transistor-tester-ESR-meter-Cymometer-square-wave-generator-/121430288103

It has a graphic LCD, and a socketed MCU so it's easy to upgrade.
It's been shown that you can run the open source firmware on it:

http://www.eevblog.com/forum/testgear/$20-lcr-esr-transistor-checker-project/msg577349/#msg577349