B&K 520B TRANSISTOR / FET / Diode / SCR TESTER
CHECKS DIODES, SCR's, TRANSISTORS AND FETS
IDENTIFIES’S LEADS, DETERMINES IF NPN OR PNP, DETERMINES IF GERMANIUM OR SILICON. READS LEAKAGE, CHECKS IN/OUT OF CIRCUIT. WITH COPY OF MANUAL, 8Wx7Hx3.5DTESTED AND GUARANTEED WORKING.