Oct 11, 2018 #1 John1397 190 18 This tester has been in use for 28 years no problem yet. Made out of left overs. Attachments 1011181223a.jpg 61.6 KB · Views: 693
Oct 12, 2018 #4 YoungPhysicist Insights Author 350 203 Really useful when you have a couple thousand transistors with unclear operation status