How to test a TRANSISTOR with a multimeter PNP or NPN MF#63

how to test a silicon transistor with a multimeter using the diode function. and how to tell if it is a PNP or NPN and find the Base.

[MrArcheopteryx]

Excellent! Very clear, complete and to the point. Wishing my teachers were more like you.

[jan-zumwalt]

I watched 5 or 6 other YouTube videos before finding yours, this is the best! Thank you very much! Without the graphics I would have missed the point!

[itslilyitslily]

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.

[ChipGuy]

I like how you implemented the graphics in the video. Nice idea!

[nodrogawson]

That was very useful, never pictured it that way before.You made that very easy to understand.
Thank you for sharing.

[JonDotExe]

One of the best transistor test description videos I've seen. Thanks!

[s.h.]

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.

[TiltingAtCthulhu]

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!

[jansdal]

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 .

[bobboisen]

Thanks for both your clear demonstration and your direct approach.

[tedbastwock]

A clear, succinct explanation. Thank you

[jandrokirkish]

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!

[americanmultigenic]

Just about to solder my VERY FIRST (NPN) transistor to a prototype board. Thanks for this very helpful tip! ---Mike

[tgorycki]

Thank you! Straightforward and to the point in under 3 minutes!

[hedgerowpete]

a brilliant video, simple clean and flaff free, thank you for this information, i knew nothing of this untill this afternoon

[JakobHaq]

Nice having you back after the Holidays! Hope you had a great time Markus!

[auwy]

Thank you for this excellent video with short and precise explanation.

[PhilipBryden]

Well deserved thumbs up for a clear and concise explanation. Hopefully this will help me with my own repairs. Thank you.

[RenierRavelo]

i saw a lot of videos, but yours it´s the best! thank you very much!

[joeyscott]

Excellent!!! Nice and simple to understand . Helped me out big time ! Thank You