1 00:00:01,110 --> 00:00:09,840 Hello and welcome to this annual on inside Chad to you how you can easily test a transistor. 2 00:00:10,380 --> 00:00:14,260 So first let me explain this theory. 3 00:00:14,310 --> 00:00:23,090 Basically a transistor has three terminals or a base collector and a metal 4 00:00:26,110 --> 00:00:31,290 and we have two types of transistors B and B and and beyond. 5 00:00:31,830 --> 00:00:37,950 We all need to concentrate on that out in the middle here down on the B. 6 00:00:38,630 --> 00:00:45,150 Okay let me just focus on this area now. 7 00:00:45,490 --> 00:00:50,180 First thing you need to know before this thing a transistor to know. 8 00:00:50,220 --> 00:00:57,700 After all if it's working or not is to identify the base so the base can easily be identified. 9 00:00:58,450 --> 00:01:07,270 If you use the digital multimeter on the diode reading you know because basically a transistor consists 10 00:01:07,270 --> 00:01:13,540 of two diodes and the two terminals that want to give a reading. 11 00:01:13,540 --> 00:01:16,650 Both ways are the collector undependable. 12 00:01:16,660 --> 00:01:22,650 This means that the first thing that we are able to identify is the base. 13 00:01:22,720 --> 00:01:30,070 So if we found two terminals that give no readings you can easily know that these statements are a collector 14 00:01:30,080 --> 00:01:31,280 altimeter. 15 00:01:31,780 --> 00:01:40,800 The base is that terminal that we used and that these two didn't give reading with. 16 00:01:42,280 --> 00:01:50,530 So we identified the base now after identification of the base you need to know if this is a B and B 17 00:01:51,370 --> 00:01:52,880 or Ambien. 18 00:01:53,260 --> 00:02:02,440 This can be done by simply testing the base using the positive terminal of the digital multimeter and 19 00:02:02,440 --> 00:02:05,270 try to get a measurement out of these two. 20 00:02:05,710 --> 00:02:11,910 If the base gave reading which is connected to positive terminal this means that the transistor is be 21 00:02:12,060 --> 00:02:17,770 unbeaten because it's positive in the metal while if we connected the negative chairman of the digital 22 00:02:17,770 --> 00:02:23,050 multimeter and it give what gave a reading with these two terminal. 23 00:02:23,050 --> 00:02:33,610 This means that this transistor is B and B the last step here is to identify the collector unlimited. 24 00:02:34,210 --> 00:02:40,810 The inventor is the terminal that gives a higher reading than the collector. 25 00:02:40,900 --> 00:02:42,200 When connected to the base. 26 00:02:42,220 --> 00:02:48,610 So if we connected these to the collector at the base of the base and diameter it should give us a higher 27 00:02:48,610 --> 00:02:54,750 reading than when we connect these two term now. 28 00:02:54,780 --> 00:02:58,470 I will do this in practice so you don't have to worry about anything. 29 00:02:59,130 --> 00:03:05,190 If you didn't understand my explanation now it will become clear when we do this in practice. 30 00:03:05,340 --> 00:03:12,690 But the main thing that similarity is first identified the base by finding the two terminals that gives 31 00:03:13,080 --> 00:03:15,000 no readings together both ways. 32 00:03:15,000 --> 00:03:21,440 So you both doubles the terminal of the stomach middle here and then you get up here to give no reading. 33 00:03:21,450 --> 00:03:26,360 If your affairs these two terminals the positive here on the negative here it will give no reading. 34 00:03:26,400 --> 00:03:31,110 So basically I find the base which is the third now. 35 00:03:31,230 --> 00:03:39,420 The next step will be identifying if it's beyond your unbeaten by knowing the base voltage is positive 36 00:03:39,420 --> 00:03:43,180 or negative so step will be identifying the collector on the meter. 37 00:03:43,290 --> 00:03:49,110 The one that will measure all will give a high rating with the base will be the emitter. 38 00:03:49,170 --> 00:03:51,450 The other one is the collector. 39 00:03:51,570 --> 00:03:54,140 The next lesson I will show you this in practice. 40 00:03:54,330 --> 00:03:55,380 So stay tuned. 41 00:03:55,380 --> 00:03:57,770 Thanks for watching this listen. 42 00:03:57,870 --> 00:04:01,320 If you have any questions please ask and if you aren't able publicly.