Jan 15 2004 DY294 Digital Semiconductor Transistor DC Parameter Tester By dyinstrument Measure rich DC parameters of maniford semiconductor, e.g.diode, transistor, controlled silicon, FET. Measure capacitor, varistor, DC voltage signal source Measure 78 and 79 series three terminal voltage regulator Data hold, low battery warning Complete with carry bag and four1.5VAA batteries