I tested my Diode, Transistor (PNP/NPN) in my radio kit using this video. All worked exactly as it did on your test. I found it easier however to put the transistor into the breadboard and connect a wire from each lead of the transistor to one end of an LED terminal. I used the top springs for a PNP and bottom springs for a NPN which made it easy to see how they both worked the same, yet in reverse current of each other. Thanks for this video.
Agreed, top notch vid. I've been doing board level repairs and diag in the electronics field for 15yrs, you are one of the very few people who actually know what they are doing.
I really enjoying your videos. My questions are written below. 1. Why we use a resister with collector for NPN- transiter and how can we select its value? 2. If I use NPN- transister then why the capacitor and diode are advisable to use in parallel, connecting emitter and collector, and how can we select T, D and C values? 3. How can we select a transister ? 4. How to stop the harmful frequencies effect on a simple circuit of multiple transistors?? Please answer all the questions, thanks!
now i can finally test transistors. ive seen other videos on testing them but im useless if i don't understand how it works. gained alot from this one. good job.
Hi there fellow South African, all I can say is that you have done a sterling presentation Well done! Have subscribed to your tutorials Thank you and totsiens!!
This is the most thorough video I've seen on UA-cam in demonstrating how to measure a transistor. I am an extreme novice currently in the process of trouble-shooting a PCB and this was so helpful in clarifying the process. Thank you!
Thanks very much for your feedback Rich. I do touch on potentiometers briefly in "Electronics Tutorial #5 - Ohm's Law Pt 2 - Application:LED Resisitor, Voltage Divider, Current Shunt" I will be covering more on individual components in future tutorials. Cheers, Martin.
for many years i have been playing with electronics (see "merlins theremin" on you tube) but never knew how to do a simple transistor test. Excellent video mate. cheers.
Great, thanks for the feedback. I'll certainly continue these videos on basic components as I certainly learn through the process as well. Cheers, Martin.
finally very clear , i was always in the dark with the arrow and line and never took the effort to fully solve the ambiguity of the diode icon or direction of current paths this for me was about 30 years of diode icon darkness best video yet on this to clarify this thanks and its easier for me to learn with these vids than actual highschool
Hello Martin, These videos are AMAZING for "newbies" to Ham Radio and electronics!!! People tell me, "just put the red probe on this and the the black one on that and put the dial here and this is what you should get." That's fine, but you show is HOW this all works, especially your paper drawings and how you put the test probes on those spots--GENIUS!! Thank you, Thank you. I will now look through the videos to see if you have one on Potentiometers; if not can you make one? 73, Rich, W2RRK
My pleasure. The explanation of how a transistor works will be part of the current electronics tutorials I'm doing...so stayed tuned over the next few weeks. Cheers, Martin.
Vernon Castle .................... This was the simplest demo of testing a xsistor i have ever seen. just great look forward to more demo's Thanks bro.
Great video as always. Not wanting to split hairs, but they are not so much circuit diagrams of transistors as schematic symbols. In themselves they don't form a circuit. Love watching your videos, no matter how long you work with electronics there is always something new to learn or a forgotten detail to be refreshed.
Nice video indeed! Thanks M8, been working on trying to breath life back into my old 10 meter Ham tube amp, found the PNP transistor looks like it got hot at some point in time. I studied and followed your video and applied the concept which I am having a reading of 0.002V between the emitter and the base, next step is removing it then try to see if I can't get some written info off it using magnifying glass. 73 from Steve, KC3AZT.
Good question, I just Google the part number if I can see it. I will try cover this in a video in the electronics tutorials. Consider posting the question in my forum: mjlorton(dot)com. There are some very helpful folks that can help.
Outstanding...without getting into "doping theories" blah, blah, blah...this really shows one how to test component level transitors....nice video Aye!!
It would be great if you post a video on how transistor works. It might be easy to unerstand how the FET type transistor works, but for me NPN and PNP (BJT) still pose a challenge. :)
Yes, it can OL in both directions. It means the circuit in the diode is broken / damaged and it can't conduct. It could be caused by too much current going through the diode.
Very good tutorial. I like how you keep repeating the important stuff, it helps me retain the information. You're also better than the majority with your closeup camera work. I'd love to see some techniques on figuring out the pinout without a datasheet. You did a fantastic job on this video. The music volume at the end is a little loud, but great video.
Many thanks for the reply , again a great video and it would be great if u post a video for the thyristor in the same manner ,with diagrams etc because its the best i have seen so far!
PLEASE post a video describing how transistors work!, would be helpful, especially with your way of teaching things, its very easy to grasp, your other tutorials have helped me greatly (:
man u explain things so easy been wanting to know how to test them and never could understand how i would even buy a cd its that easy i wont remember it long because i had two stroks but ill just come back right here
Hi Sammy, thanks for the great feedback. If you visit my Amazon store through my link you can then purchase anything...even items not listed. The Transistor tutorial will be one of the next electronics tutorials I do. Cheers, Martin.
I love your videos. I would love you to put a video out that would go through each component such as diode, resister, transistor, capacitor, led, etc, and show how to test and how to use or how they are used and why each one is used. I am quite new and am very interested in learning although I do not have funds to pay for the knowledge that is why I am on youtube, I learn a lot from here.
Cheers, Martin; Thank a lot, you are very good and nice person. whether you call it, instructions, lectures, comments or lessons!!! it's great. I always benefited from your instructions. I always benefited from your lectures. I always benefited from your lessons . I always benefited from your comments. THNX again. bye, Best regards. المُهندس أبوعبدالرحمن الأصيل الحجآزي Asiel Hajazi ARAB Engineer FAA, A&P IA Inspector. NDT Level II Inspector
Great video's very informative. I am starting into electrical engineering trying to get up to speed and I thank you for your time to explain every thing in your video's you gained another sub cheers!
Scientifically electron flow is from - to + but to start off with Benjamin Franklin got it the "wrong way" (+ to -) but that convention has been used for so long and is known as conventional flow. Most folks and books use conventional flow (positive to negative) so I would stick with that.
I just saw your video and i am very impressed from your detailed explanations, as I am very interested in Electronics i'll surely be watching & learning from more of your videos if available. you are doing a wonderful job, please keep it up & thank you.
Thank you for this video, it really helped. I have watched many other videos how to check transistors, but yours explained everything. I liked the way you explained the transistor by representing it as two diodes. And thanks for mentioning that pinout may be different in different transistors, i thought base is always in the middle)))
These are great videos Martin. Thanks for posting them. I'm learning and your teaching method seems to make the knowledge sink in better than others I've seen. Do you think you could do an explanation of how transistors work please? I've read about them but somehow the understanding isn't quite there. Thanks.
You make me feel happy and confident and i can see from your face ALLAH makes you look happy and strong....God bless you man....hope keeping help.. people
please increase the video quality from 720p hd to 1080p hd so that viewers can download them and keep them as reference in the future.We find your videos very helpful.
I tested my Diode, Transistor (PNP/NPN) in my radio kit using this video. All worked exactly as it did on your test. I found it easier however to put the transistor into the breadboard and connect a wire from each lead of the transistor to one end of an LED terminal. I used the top springs for a PNP and bottom springs for a NPN which made it easy to see how they both worked the same, yet in reverse current of each other.
Thanks for this video.
No doubt the BEST video on UA-cam on how to test transistors, WELL DONE!
Agreed, top notch vid. I've been doing board level repairs and diag in the electronics field for 15yrs, you are one of the very few people who actually know what they are doing.
I really enjoying your videos. My questions are written below.
1. Why we use a resister with collector for NPN- transiter and how can we select its value?
2. If I use NPN- transister then why the capacitor and diode are advisable to use in parallel, connecting emitter and collector, and how can we select T, D and C values?
3. How can we select a transister ?
4. How to stop the harmful frequencies effect on a simple circuit of multiple transistors??
Please answer all the questions, thanks!
now i can finally test transistors. ive seen other videos on testing them but im useless if i don't understand how it works. gained alot from this one. good job.
Hi there fellow South African, all I can say is that you have done a sterling presentation Well done!
Have subscribed to your tutorials
Thank you and totsiens!!
This is the most thorough video I've seen on UA-cam in demonstrating how to measure a transistor. I am an extreme novice currently in the process of trouble-shooting a PCB and this was so helpful in clarifying the process. Thank you!
I have watched a lot on videos and still con not tell a good component from bad. You have truly cleared my head and love your videos period!
I watched a ton of videos and never left a comment, this video deserves one...excellent description I now understand and you saved me $200
Thanks very much for your feedback Rich. I do touch on potentiometers briefly in "Electronics Tutorial #5 - Ohm's Law Pt 2 - Application:LED Resisitor, Voltage Divider, Current Shunt"
I will be covering more on individual components in future tutorials.
Cheers, Martin.
for many years i have been playing with electronics (see "merlins theremin" on you tube) but never knew how to do a simple transistor test. Excellent video mate. cheers.
Thanks for your feedback and support. Cheers,
Martin.
Thank you. I've been watching many videos on transistors but this one is by far one of the best.
Great, thanks for the feedback.
I'll certainly continue these videos on basic components as I certainly learn through the process as well. Cheers, Martin.
finally very clear , i was always in the dark with the arrow and line and never took the effort to fully solve the ambiguity of the diode icon or direction of current paths this for me was about 30 years of diode icon darkness best video yet on this to clarify this thanks and its easier for me to learn with these vids than actual highschool
First thank you for the video it was very informative.
Second PLEASE continue your vids on basic components....Your an excellent teacher.
thank you.
Hello Martin, These videos are AMAZING for "newbies" to Ham Radio and electronics!!! People tell me, "just put the red probe on this and the the black one on that and put the dial here and this is what you should get." That's fine, but you show is HOW this all works, especially your paper drawings and how you put the test probes on those spots--GENIUS!! Thank you, Thank you. I will now look through the videos to see if you have one on Potentiometers; if not can you make one? 73, Rich, W2RRK
I watched a lot of videos and almost i never left a comment, this video deserves one...excellent
My pleasure. The explanation of how a transistor works will be part of the current electronics tutorials I'm doing...so stayed tuned over the next few weeks. Cheers, Martin.
Brilliant videos,I,ve looked at loads of videos on basic electronics but none come close to yours, thanks again.
From Iraq-Kurdistan............1000 thanks to you for your Efforts to serve your brothers of humanity
faik hawrami My pleasure, thanks for the feedback.
mjlorton Great video! very interesting hope you can make a video in the future on how a transistor works.Just subscribed to your channel.
+mjlorton hi bro can u tell me which handle scope is good for testing cars sensor or ignition coil thx
A simple thanks for all the time and effort you put into making these marvelous informative videos.
Vernon Castle .................... This was the simplest demo of testing a xsistor i have ever seen. just great look forward to more demo's Thanks bro.
Great videos keep up the great work, I always enjoy them. I believe the OL is open line.
Visual inspection is the key. Keep up the good work mate.
Beautiful i really loved your video, i am noob in electronics but this tutorial was one of the best explanations of transistor and diode.
Great video as always. Not wanting to split hairs, but they are not so much circuit diagrams of transistors as schematic symbols. In themselves they don't form a circuit. Love watching your videos, no matter how long you work with electronics there is always something new to learn or a forgotten detail to be refreshed.
Great video. Cheers on keeping the knowledge alive and passing it to the new generation.
Thanks for the video. It's been awhile a video has not been explained so beautiful
Great. Simply super explanation. Short,simple & sharp make everyone understand clearly. Keep share more tips thru web mjlorton.Thank you
Just what I need to know for an upcoming interview...thanks for making it so easy to follow!
Nice video indeed! Thanks M8, been working on trying to breath life back into my old 10 meter Ham tube amp, found the PNP transistor looks like it got hot at some point in time. I studied and followed your video and applied the concept which I am having a reading of 0.002V between the emitter and the base, next step is removing it then try to see if I can't get some written info off it using magnifying glass. 73 from Steve, KC3AZT.
Watched again and I would really like to see more of your 'How To' Videos. Thanks
Good question, I just Google the part number if I can see it. I will try cover this in a video in the electronics tutorials. Consider posting the question in my forum: mjlorton(dot)com. There are some very helpful folks that can help.
Thank you sir, this is really brief and simple to understand. Thumbs up for you
Thats also a good way of identifing the collector, base and emitter of an unknown transistor. Thanks helped lots.
I'm fairly sure the same test does not apply to MOSFETs but I will be covering MOFETs in the near future.
Thanks for the feedback.
You just pour everything out in this vid. Thanks man.
Very good question. Yes the fuse was tested...but it's the "logic" on the multimeter that seems to be at fault.
Thanks very much for your feedback Asiel, it certainly is appreciated. Cheers, Martin.
easily explained and put in a way even us newbies to electronics can understand. spot on mate thank you.
Outstanding...without getting into "doping theories" blah, blah, blah...this really shows one how to test component level transitors....nice video Aye!!
It seems you are a very good teacher, excellent piece of work ....
It would be great if you post a video on how transistor works. It might be easy to unerstand how the FET type transistor works, but for me NPN and PNP (BJT) still pose a challenge. :)
Excellent presentation, I always enjoy your videos, easy to follow and understand.
Yes, it can OL in both directions. It means the circuit in the diode is broken / damaged and it can't conduct. It could be caused by too much current going through the diode.
Very good tutorial. I like how you keep repeating the important stuff, it helps me retain the information. You're also better than the majority with your closeup camera work. I'd love to see some techniques on figuring out the pinout without a datasheet. You did a fantastic job on this video. The music volume at the end is a little loud, but great video.
It will be my next electronics tutorial. Cheers, Martin.
im a college student,it is a really helpful to understand the pnp and npn transistor.
Very good question...there are folks more qualified to answer that on my forum. I also hope to post a video on the topic in the future.
sir, i am watching your videos since long and under stand it. i like your way of instruction. Tks
Fantastic, cleared up so many little questions for me in one very clear tutorial, thank you very much for your time and effort.
Many thanks for the reply , again a great video and it would be great if u post a video for the thyristor in the same manner ,with diagrams etc because its the best i have seen so far!
PLEASE post a video describing how transistors work!, would be helpful, especially with your way of teaching things, its very easy to grasp, your other tutorials have helped me greatly (:
man u explain things so easy been wanting to know how to test them and never could understand how i would even buy a cd its that easy i wont remember it long because i had two stroks but ill just come back right here
Thanks for the video. I am always learning something from each of your videos.
My pleasure, thanks very much for the feedback.
Hi Sammy, thanks for the great feedback. If you visit my Amazon store through my link you can then purchase anything...even items not listed.
The Transistor tutorial will be one of the next electronics tutorials I do.
Cheers,
Martin.
No, that is a dream. Test equipment is design for a specific piece or range of electronics...not any electronic board. Cheers, Martin.
I removed the transistor from the circuit and it tested fine. Thanks!
thank u for this info.very valuable.school wont teach u as good as u did in 20 min.
Very Step By Step Informative... Thank you for sharing and explaining the basic lesson
I love your videos. I would love you to put a video out that would go through each component such as diode, resister, transistor, capacitor, led, etc, and show how to test and how to use or how they are used and why each one is used. I am quite new and am very interested in learning although I do not have funds to pay for the knowledge that is why I am on youtube, I learn a lot from here.
you have clear my transistor concept. which i was hanging from long time.
Cheers, Martin;
Thank a lot,
you are very good and nice person.
whether you call it, instructions, lectures, comments or lessons!!! it's great.
I always benefited from your instructions.
I always benefited from your lectures.
I always benefited from your lessons .
I always benefited from your comments.
THNX again.
bye, Best regards.
المُهندس
أبوعبدالرحمن
الأصيل الحجآزي
Asiel Hajazi
ARAB Engineer
FAA, A&P IA Inspector.
NDT Level II Inspector
Great video's very informative. I am starting into electrical engineering trying to get up to speed and I thank you for your time to explain every thing in your video's you gained another sub cheers!
My pleasure, thanks for the feedback.
Scientifically electron flow is from - to + but to start off with Benjamin Franklin got it the "wrong way" (+ to -) but that convention has been used for so long and is known as conventional flow. Most folks and books use conventional flow (positive to negative) so I would stick with that.
Great tips.I really enjoy watched your video clip simply super short,simple & sharp.Hope to see more tips.Thank you very much sir..
I just saw your video and i am very impressed from your detailed explanations, as I am very interested in Electronics i'll surely be watching & learning from more of your videos if available. you are doing a wonderful job, please keep it up & thank you.
Fantastic video! Very easily explained & simple to follow. Thanks for the lesson👍🏻
Thank you. I'm troubleshooting now and this helped tremendously.
It was very clear and thanks for posting such videos.
Boualem from Algeria
Thank you for this video, it really helped. I have watched many other videos how to check transistors, but yours explained everything. I liked the way you explained the transistor by representing it as two diodes. And thanks for mentioning that pinout may be different in different transistors, i thought base is always in the middle)))
instablaster.
Thanks for the video, your a great teacher, you explain things very well.
Thanks...transistors, etc. will happen in my electronics tutorial videos. Cheers,
Martin.
You don't even know how much I learned from this :)
Good to know...thanks for the feedback.
These are great videos Martin.
Thanks for posting them. I'm learning and your teaching method seems to make the knowledge sink in better than others I've seen.
Do you think you could do an explanation of how transistors work please? I've read about them but somehow the understanding isn't quite there. Thanks.
Great tutorial, great pace and really well explained. Thank you very much.
New into electronics. So informative. Thanks for your effort.
Thanks for your post, I really appreciate all the hard work you put into sharing your knowledge with us. Have a nice day, and keep up the good job.
Thanks for the feedback Paul.
thank you very much for taking the time to make this video.
You make me feel happy and confident and i can see from your face ALLAH makes you look happy and strong....God bless you man....hope keeping help.. people
Brilliant! I certainly appreciate your post and feedback. Cheers, Martin.
Clear!
From many tutorials a like this one the best.
Good job
Thank you very much for clearing transistor misunderstand and doubt
That was very well put over, glad I check you out.. I learned a lot. Thanks for sharing.
Yes...I have purchased a pair since making this video. Cheers.
Thanks for the feedback.
Thanks you very much for this video, you really helping a lot of people who wants to learn.Keep up the great job. GOD Bless you always.
really real helpful information and procedures. keep it up.cleared a lot and lots of things for me. thanks for this video.
Kudos for the video tutorial. I actually learned something.
Thank you. This is your best video yet !!!
im watching you now in 2020 and your inforamtion still Amazing and useful thank you very much :)
Happy to find your channel. Thanks.
Thanks for your excellent explanations! Really helping me in learning....
please increase the video quality from 720p hd to 1080p hd so that viewers can download them and keep them as reference in the future.We find your videos very helpful.
Awesome Explanation Thanks for educating me about trans and diode
Hi Gary, those little do-dats for testing transistor....let me add that to the list. Cheers, Martin.