how to use a transistor to switch a relay

5:21

5:21

5:21

1:34

3:36

12:16

2:31

4:18

6:29

7:21

2:01

3:27

6:44

9:37

4:25

23:42

8:15

5:17

10:35

6:36

12:20

39:59

9:31

7:31

2:23

26:00

7:54

1:08

9:03

2:48

8:28

8:12

3:36

2:42

کوتاه

1:16

7:34

1:40

2:16

13:16