DROK Transistor Tester

DROK Transistor Tester

[skycarl]

Those little testers are so handy. I have one like that without the case but it's works really well. Can really save time on the bench. Thanks for sharing Rick.

[SpeakerFreak]

That’s a pretty neat little tester. The prices of these have become so cheap it’s unreal. No reason we all shouldn’t have at least one.

[cowsongs]

Thanks for the video. Very nice.
I just got one off these, and I love it. The capacitance and resistor measurements are dead on (compared them to other meters as well). But beware the gain values on the transistors. They can be unrealistically high, especially for power types. For example, with that first transistor you tested (the one in the TO-220 case), the gain showed 87. But in practice, that transistor isn't going to give you gains anywhere near that. I put an ammeter in line with the base lead of the transistors I tested and found that it tests with 3 pulses, the highest of which is only 2.5mA. With that small a base current, power transistors can show phenomenal gains, but then you use a power type in its typical application, that base current is going to be in the hundreds of milliamps, perhaps even 1/2 to 1 amp. It will have a gain more like 20 in that situation. Other than that, thought, I really like this device. Great for a quick check and pin-out identification.

[Cavemannspace]

I love mine!!! I have the exact same meter, I call it a component tester. I've had it for several months now and it is quite handy. I've been using it to check and sort components at a local radio museum. The drawbacks are that is may not be as accurate as necessary for some RF coils.That's where a more expensive L meter may come into play if you do a lot of that kind of work.

Sometimes you have to reposition the leads (comes with it, I'd like for them to be a little more sturdy and soldered onto the clips instead of wrapped) and re-check the part to get a reading. The drawbacks are really small potatoes considering all that it can do at this price point and besides you know about soldering the leads right off the bat. Do hit the off button instead of letting it time out as it does like batteries.Just be SURE that you discharge any capacitor or you will not have a handy little meter anymore. (No, I didn't do that. 8^) Well worth the price.

[AlejandroGomez-yxsg]

Thank you for making this. Your friends were right, you needed to show the operation of this interesting tester. I got one already. Cheers.

[jp]

I have a similar one. I use it to test components before I solder them into my projects so I know I have known good parts as I go. Very handy for general testing. Not lab grade but more than good enough.

[woodysgeekchannel]

Just got mine today after 2 months of waiting...Thank you

[InterplainMusic]

Mine was saying Damaged or Unknown Error. If you get this its the battery is to low.. Run it off a Power adaptor and it was flawless.

[kaaq]

Just bought one for my training center and though almost 4 years after your video, has the same firmware version. Only thing I don't like is the adapter for the components does not feel secure.

[helmetdump]

Mine arrived today. Works ok, but they could have done a better job in selecting a socket to connect the zif socket to. It's kind of loose and sometimes makes a bad contact causing a test error

[Cheezwizzz]

I’m a total novice, but I’d like to own this tester. My question is, can this device show if a component is dead? Would it be a case of the device simply not reading the components?
I’ve had success replacing capacitors on my subwoofer, I was able to test it via a multimeter, but this little device seems to be a must have!

[worldwide]

Thank you for demonstrating this device. However, I would not say 13% tolerance for a capacitor would be within tolerance. 3:27 mark.

[ShannonJosephGlomb]

Thanks ❤️ ❤️ ❤️ ❤️ ❤️ ❤️ your a champion for showing us this 😊

[rectify]

I’m looking to get a Tester, not sure what to get yet 👍

[hakanmuratbulak]

What I'm curious about. I wonder if it can also measure 18650 battery internal resistance (esr)?

[WilliamVG]

Has there ever been a time when this meter did not put in a decimal when testing a Capacitor? I have a small 10uF 50v Capacitor and I'm getting a 9750 uF reading.

[grantpeterson]

Hey AllAmericanFive! Loved this video along with your others. What would be the best way to determine DS on resistance of a MOSFET? I didn’t see such a measurement on the tester.

[SpeakerFreak]

Hope to see some radio videos from ya soon! Take care my friend.

[dubdoodle]

is this also an ESR tester for caps on PCB ?

[acoresbrasil]

Is that tester also good to read/detect faulty components? For example, a shorted diode or a transistor or even way out of specs.... I'm a little bit confused, sorry...