+Chip Guy Vids Thank You. it took me 5 times longer to make the graphics than the video itself but I think it was worth the effort. Best wishes from Markus
15 seconds into the video, had to pause and comment: I LOVE YOUR WORK STATION. I get to work in a big High-Voltage Lab at Uni; but your set-up is simple, organized, and efficient.
you could add into this video that the highest resistance between the two diodes (BE-BC) is the Emitter. If you measure in Diode mode on your multimeter, the highest Voltage is the Emitter. The Emitter is heavily doped, That's why the BE is higher than the BC. Then you know all pinouts .
+Jan sædal Hi Jan. I always seem to miss things out when making a video but thanks to the comments section people will read your reply and everyone gains a bit more info. Many thanks for adding this.
Markus, thank you so much for this simple explanation. I have recently finished a DIY modular "kit" (it's a Serge Synth) and had to solder a single SMD part: A matched pair transistor. After soldering it on with a way too big soldering tip I was pretty sure I destroyed it. After watching your video, I checked its six tiny feet and voila, there is only current coming from one P to two Ns on both sides. Until I can finally check it (the Output module pcb of all things is currently out of stock and will be sent in a week or two) I will remain fearful I'll have to resolder that transistor after all, but now I can sleep a lot better until then! ...Also, your videos made me interested in DIY synths in the first place. Opening up those machines is just way too exciting. Please continue making videos on your channel in 2018!
I need to take some transistors off a vintage amp for testing and this has given me the confidence and understanding I needed. Tha k you for you're clear explanation that also explained the function so we can learn a little more about how the electricity flows and the circuit works.
Fixing my Roland TR-606 and learning about my closed hihat and open hihat problem and found out that it might be the resistors!! Miss ur electronics and musc teardown videos!! Hope to see new videos soon
Great vid Markus. Your videos have inspired me to repair all my old synths. I replaced a bad cap and power switch on my Alesis QSR, bringing it back to life. Also repaired the floppy disk drive on my Korg X3R, bringing back all my songs from the 90s. They are not as good as I remembered. Also enjoyed chatting with you on sonic talk today-I'm AudBall. There I just outed my handle. Cheers and happy new year!
+Jandro Kirkish Hi Jandro. Nice to chat to you on Sonic Talk :-) . Im pleased you are getting some gear repaired. Its real nice when I hear people having a go at repairing things and bringing old gear back to life. I will look out for you on the next Sonic Talk. Best wishes from Markus
Good to know thanks, very handy. That simple test tells you if its working, NPN or PNP, which is the Base, and both of my cheap multimeters work with this.
+Jakob Haq Hi Jakob. I hope you had a good holiday time also. I have been watching all your video's here on youtube. they are very interesting and educational. keep up the good work. best wishes from Markus.
Thank you. As I understand it, the emitter pin will have a higher voltage drop than the collector, as the emitter is more heavily doped. For the NPN transistor, the leads appear to be laid out as E-C-B. Same for the PNP. Lord knows with all the packaging styles, it's anyone's guess as to which is which, and some HP test procedures ask you to short the E-B!
+ThomasGrillo Hello Thomas. I had to remake this video a couple of times as the first few were far too complicated. I just wanted to make it quick and simple so anyone with a multimeter can do this easy transistor checking. Glad you liked it.
Thank you your video is very helpful now i understand how to identify pnp and npn,,,, Im confuse the other video but your video is very easy how to understand pnp and npn thnk you god bless u..😂😂😂😂😂😂😂
I have an LED photo studio light that was dead and when I took the cover off, one component (an L7805CV) looked fried. I'm going to test it out tonight. Thanks for your help :)
Good job ! The fast and easy way to do it. As for identifying a component, Google is your friend, as always. Best wishes to you, your family and friends for 2016 Markus ! Alain.
+AlainHubert Hi Alain Happy 2016 to you and family also. yes I often use Google for almost all my component information. but a friend asked me about a transistor tester as he only had a multimeter so I showed him how to use it for testing a transistor and he said I should make the video as it was so simple and saved him buying a £70 transistor tester.
Be aware that the leads on an _analog_ multimeter have reverse polarity for such tests. That is, the red lead is negative and the black lead is positive battery. If that 's confusing, simply swap the lead connections on the meter for the purpose of this type of test.
Nicely explained Marcus and thank you. I am in the process of putting new transistors into my wurlitzer 200a, and it's not making a sound. So am assuming there's a bad transistor there, or maybe one that is in a different direction than wanted. The amp is working on this, though no sound from the piano yet.... Hopefully will find the issue, though presuming I need to remove them...
Thank you for your good video! Just one question: what if you have readings between each pin and in each direction? Each combination gives me a reading... Thank you!!
Cheap chineese transistor testers show all stuff at once =) But as a child i've read how to test tr-r with just an ohmmeter, old analog one, with pointer, not digital. The essentials are in this video, but it also said that collector has higher impedance.
+nihonam Hi Yes I looked everywhere for an analog meter so I could show how to use one for the same transistor testing but all that was available was the digital one.
These videos on testing transistors confuse me. If it's PNP shouldn't you touch the leads on the transistor in that way to test it? P positive, N Negative? (Newbie here trying to learn.) Another video says the emiter will have a higher reading, is that true? I wish I could figure this out.
Im trying to salvage transistors from old cellphone chargers and other devices. I would like to make a led blink using a transistor resistor and capacitor. Does the transistor function differently when different voltages are applied?
Great explanation on the TO92 package 2S series. Can yo do a breakdown on the 2N series, explaining the differences between the pin-outs of each series and how to tell the which pin is which? Thanks.
Now do a 500k slider pot for a Roland MC-202! (I don't have any clue which connectors are supposed to work. I got a reading from it but it doesn't change when I slide the slider)
8 years later this is still a great video. Also why when I look it up my transistor is supposed to be NPN but this test says its PNP but when take another one with the sam model number it shows that its NPN??? Like did the chineese guys mislabel them?🤣
Here's the PNP instructions R1 2.2M at B R2 2.472K at C 9v: - at R1/2 ends and + at E DMM: DC V across R2 Note V w/ R1 (X Volts) Note mV w/o R1 (0.XX Volts) subtract small # from big and x100 = HFE
![[BAEMON NEWS 7] NEW ALBUM COMING IN](http://i.ytimg.com/vi/wtVeAPimOyo/mqdefault.jpg)
Excellent! Very clear, complete and to the point. Wishing my teachers were more like you.
I watched 5 or 6 other TH-cam videos before finding yours, this is the best! Thank you very much! Without the graphics I would have missed the point!
I like how you implemented the graphics in the video. Nice idea!
+Chip Guy Vids Thank You. it took me 5 times longer to make the graphics than the video itself but I think it was worth the effort. Best wishes from Markus
well said
15 seconds into the video, had to pause and comment: I LOVE YOUR WORK STATION. I get to work in a big High-Voltage Lab at Uni; but your set-up is simple, organized, and efficient.
stephen hiller Thanks Stephen, its always changing and evolving as im never 100% happy with the placements.
One of the best transistor test description videos I've seen. Thanks!
the worst !
you could add into this video that the highest resistance between the two diodes (BE-BC) is the Emitter. If you measure in Diode mode on your multimeter, the highest Voltage is the Emitter. The Emitter is heavily doped, That's why the BE is higher than the BC. Then you know all pinouts .
+Jan sædal Hi Jan. I always seem to miss things out when making a video but thanks to the comments section people will read your reply and everyone gains a bit more info. Many thanks for adding this.
Markus,
thank you so much for this simple explanation.
I have recently finished a DIY modular "kit" (it's a Serge Synth) and had to solder a single SMD part: A matched pair transistor. After soldering it on with a way too big soldering tip I was pretty sure I destroyed it. After watching your video, I checked its six tiny feet and voila, there is only current coming from one P to two Ns on both sides. Until I can finally check it (the Output module pcb of all things is currently out of stock and will be sent in a week or two) I will remain fearful I'll have to resolder that transistor after all, but now I can sleep a lot better until then!
...Also, your videos made me interested in DIY synths in the first place. Opening up those machines is just way too exciting. Please continue making videos on your channel in 2018!
That was very useful, never pictured it that way before.You made that very easy to understand.
Thank you for sharing.
ThankYou Nodrog :-)
I need to take some transistors off a vintage amp for testing and this has given me the confidence and understanding I needed. Tha k you for you're clear explanation that also explained the function so we can learn a little more about how the electricity flows and the circuit works.
Thanks for displaying in person examples. I can't always imagine from a diagram or schematic. I need to see more examples since I'm new to circuits
Just about to solder my VERY FIRST (NPN) transistor to a prototype board. Thanks for this very helpful tip! ---Mike
Thanks for both your clear demonstration and your direct approach.
Most detailed and less bullcrap explanation
A clear, succinct explanation. Thank you
It is the best video about that topic which I see thanks mr. Markusfuller
This is a winning tech talk! I love this video!!! Thanks so very much!!!!!!
This made me want to go find my old multimeter from college. Nice to see that you had a good holiday!
+Michael Smith ThankYou Michael. I hope 2016 brings you good health and happiness.
Thank you! Straightforward and to the point in under 3 minutes!
Well deserved thumbs up for a clear and concise explanation. Hopefully this will help me with my own repairs. Thank you.
Fixing my Roland TR-606 and learning about my closed hihat and open hihat problem and found out that it might be the resistors!! Miss ur electronics and musc teardown videos!! Hope to see new videos soon
Easy to understand for a noob. Would like to give you five thumbs up.
Great vid Markus. Your videos have inspired me to repair all my old synths. I replaced a bad cap and power switch on my Alesis QSR, bringing it back to life. Also repaired the floppy disk drive on my Korg X3R, bringing back all my songs from the 90s. They are not as good as I remembered. Also enjoyed chatting with you on sonic talk today-I'm AudBall. There I just outed my handle. Cheers and happy new year!
+Jandro Kirkish Hi Jandro. Nice to chat to you on Sonic Talk :-) . Im pleased you are getting some gear repaired. Its real nice when I hear people having a go at repairing things and bringing old gear back to life. I will look out for you on the next Sonic Talk. Best wishes from Markus
Best man explained the transistors
Good to know thanks, very handy. That simple test tells you if its working, NPN or PNP, which is the Base, and both of my cheap multimeters work with this.
a brilliant video, simple clean and flaff free, thank you for this information, i knew nothing of this untill this afternoon
Nice having you back after the Holidays! Hope you had a great time Markus!
+Jakob Haq Hi Jakob. I hope you had a good holiday time also. I have been watching all your video's here on youtube. they are very interesting and educational. keep up the good work. best wishes from Markus.
Good deal, thanks,you're the best;after 30 years,...i go it
Thank you. As I understand it, the emitter pin will have a higher voltage drop than the collector, as the emitter is more heavily doped. For the NPN transistor, the leads appear to be laid out as E-C-B. Same for the PNP. Lord knows with all the packaging styles, it's anyone's guess as to which is which, and some HP test procedures ask you to short the E-B!
The best transistor video explanation
Very cool little vid. I had no idea how to check transistors, but did have to replace one in a theremin. Thanks for sharing this.
+ThomasGrillo Hello Thomas. I had to remake this video a couple of times as the first few were far too complicated. I just wanted to make it quick and simple so anyone with a multimeter can do this easy transistor checking. Glad you liked it.
Thank you your video is very helpful now i understand how to identify pnp and npn,,,,
Im confuse the other video but your video is very easy how to understand pnp and npn thnk you god bless u..😂😂😂😂😂😂😂
2024 sir new subscriber always watching your videos very helpful and informative❤thank you for sharing
Thank you Sir for not being brown-handed
Straight to the point and clear. Thank you sir.
Thats probably the first explanation that really made sense to me!, thanks. Eventho, there can be a little more to it than this i am sure.
Great! This helped me with my electronics homework!
Excellent video. Quick easy to understand...
Very easy to follow! Wonderful video!!!
I have an LED photo studio light that was dead and when I took the cover off, one component (an L7805CV) looked fried. I'm going to test it out tonight. Thanks for your help :)
Nice and clear guide - thanks!
Brief and accurate information. Thanks a lot.
Thank you for this excellent video with short and precise explanation.
Really enjoyed this video, would really love to see some circuit analysis into transistors
Very nice explanation thanks
Excellent! Simple but very useful. Thank you very much. Best regards.
Very clear lesson, ❤
Best explanation on YT thx 👍
simple and helpful thanks.
excellent video, short, precise, very understandable!! thank you!!
Clean and clear.... thanks 👍
Very good explanation. Thanks!
Simple and to the point....thanks.......
Excellent!!! Nice and simple to understand . Helped me out big time ! Thank You
very usefull thank god and thank u.
Brilliant! Very clear and concise 👍
i saw a lot of videos, but yours it´s the best! thank you very much!
Yes, it was very useful. Thanks.
great explanation, thanks!
That helped me for the electronics practical exams... thank you ^_^
Good job ! The fast and easy way to do it. As for identifying a component, Google is your friend, as always.
Best wishes to you, your family and friends for 2016 Markus !
Alain.
+AlainHubert Hi Alain Happy 2016 to you and family also. yes I often use Google for almost all my component information. but a friend asked me about a transistor tester as he only had a multimeter so I showed him how to use it for testing a transistor and he said I should make the video as it was so simple and saved him buying a £70 transistor tester.
excellent in quick method test of x-sistor
you get the quick thumbs up beside my grateful , thank you
Be aware that the leads on an _analog_ multimeter have reverse polarity for such tests. That is, the red lead is negative and the black lead is positive battery. If that 's confusing, simply swap the lead connections on the meter for the purpose of this type of test.
What about a digital multimeter
Nicely explained Marcus and thank you. I am in the process of putting new transistors into my wurlitzer 200a, and it's not making a sound. So am assuming there's a bad transistor there, or maybe one that is in a different direction than wanted. The amp is working on this, though no sound from the piano yet.... Hopefully will find the issue, though presuming I need to remove them...
Fantastic 👍 👍 👍. I learned something new.
I love it an excellent video I've ever seen on this ❤
Thank you for your good video! Just one question: what if you have readings between each pin and in each direction? Each combination gives me a reading... Thank you!!
Thanks, very useful
What an excellent video! I got a nice idea to upload such kind of video on my channel also. Great work.
you're the man. Thanks my dude.
whoah, you have made it so clear!
great seeing you post up again Sir Markus! enjoyable video per usual. Happy New Year...
+Marc Abernathy Thanks Marc, A new year for making more video's :-) and happy new year to you also.
nice teacher
Thank you.
This was very very helpful thanks!
Cheap chineese transistor testers show all stuff at once =)
But as a child i've read how to test tr-r with just an ohmmeter, old analog one, with pointer, not digital. The essentials are in this video, but it also said that collector has higher impedance.
+nihonam Hi Yes I looked everywhere for an analog meter so I could show how to use one for the same transistor testing but all that was available was the digital one.
Could I check if the transistors working properly while it's on the circuit motherboard?
Hi I tested my Pnp transistor tip36c checking resistance on Base and Emitter I get 220ohm short. My meter beeps. Are these bad?
These videos on testing transistors confuse me. If it's PNP shouldn't you touch the leads on the transistor in that way to test it? P positive, N Negative? (Newbie here trying to learn.) Another video says the emiter will have a higher reading, is that true? I wish I could figure this out.
easiest one to check pnp/npn.
it won't measure the amplification though..(:
Thanks for this video!
Very good video, thank you.
Nice procedure ! Thanks
Im trying to salvage transistors from old cellphone chargers and other devices. I would like to make a led blink using a transistor resistor and capacitor. Does the transistor function differently when different voltages are applied?
thank you
Hi, i wonder why in this transistor have 2 opposite diode? The voltage will flow from emitter to collector right?
Great explanation on the TO92 package 2S series. Can yo do a breakdown on the 2N series, explaining the differences between the pin-outs of each series and how to tell the which pin is which? Thanks.
Now do a 500k slider pot for a Roland MC-202! (I don't have any clue which connectors are supposed to work. I got a reading from it but it doesn't change when I slide the slider)
Cheers Dude that was explained so even I could understand it 🥳bit late to the partay but heyho! TFS, GB :)
Subscribed 👍
8 years later this is still a great video. Also why when I look it up my transistor is supposed to be NPN but this test says its PNP but when take another one with the sam model number it shows that its NPN??? Like did the chineese guys mislabel them?🤣
I have a transistor that’s getting npn and when I switch the leads around I get pnp, could it be because I’m testing it on the board?
Great vid, thanks for sharing
thank you so much
Here's the PNP instructions
R1 2.2M at B
R2 2.472K at C
9v: - at R1/2 ends and + at E
DMM: DC V across R2
Note V w/ R1 (X Volts)
Note mV w/o R1 (0.XX Volts)
subtract small # from big and x100 = HFE
Thanks
Nice explanation!!!
perfect and conscise :)
Where is higher value there is colector, am I right? Thanks for help.
very usefull
May I conclude, check transistor treating as combination of 2 diodes with common central contact.