Mega328 LCR-T4-H component tester overview, quick demo, and first impressions

You are watching a video that shows a Kookey Mega328 LCR-T4-H component tester ordered from Amazon.

[igrewold]

Specifications:
Resistor: 0.1ω-50Mω
Capacitor:
Inductance: 0.01mH - 20H
Working power: DC-9V
Standby current: 0.02uA
Operating current: 25mA
Material:Metal+Plastic
Size: about
[Conversion: 1cm=0.3937 inch, 1inch=2.54 cm]

Description:
1. Add boot voltage detection function
2. Automatic detection of NPN and PNP transistors, N -channel and P-channel MOSFET, diodes (including dual diode), thyristors, transistors, resistors
and capacitors and other components
3. Automatic test out the pin element and displayed on the LCD
4. Can be detected to determine the transistor emitter forward bias voltage of the transistor, MOSFET protection diode and the amplification factor of
the base
5. Measure the gate threshold voltage and gate capacitance of the MOSFET
6. 1602 lcd display uses LCD (12864 LCD with backlight)
7. High test speed, valid component test: 2 seconds (except in the larger capacitor of large capacitance measurement also takes a long time, the
measured time of one minute is normal)
8. One button operation, power-on test, get a key
9. Power consumption off mode: less than 20 nA of
10. Auto power off function to avoid unnecessary waste, saving battery power, improved battery life

[Snarky_Radio]

I watched this over a year ago. But, just finally got one of these dudes. This video was real helpful in getting it snapped together. Good job. I think it's gonna be a handy gadget to have in the ham shack. Could for building all these kits I have stacked up around here. 73.

[marka.]

This video deserves more views! Informative and helpful, thanks!

[pedrosmith]

The fact that I bought one of those on Aliexpress for FIVE EUROS, shipping included, amazes me.

[erin]

The test IC socket receptor pins do wear out over time, buy two. I used mine fir 5 years and then added test lead clips.

[paulevans]

I'm just considering ordering one of these and this video has helped me make up my mind. £3:56 ebay

[erin]

I had the older version of this test device, somehow one of my students thru it out while cleaning up. So they are going to assemble their own as a class project and one for me

[Pyridox]

Thanks for the demo. I just received one of these testers, which I ordered from Banggood.com. I think it was ~$12, it came with the clear plexi-glass case. For the money it works pretty good. These can also be "calibrated" by shorting all 3 test pins, and pressing the test button (you will need a capacitor for the test).

[PhoenixRevealed]

Vf is the base to emitter drop, not emitter to collector. Knowing this value is useful for selecting the emitter resistor for a desired collector current in classic 3 and 4 resistor common-emitter amp circuits.

[KTFG]

Handy product especially for the price.
I had to put velcro on the battery, the flopping around would have triggered my OCD.
I also bought another more expensive model with a case and battery compartment for use at work while I keep this model for the home bench.

[Radiowild]

I love mine and the best thing uses very little bench space.

[hmoUserr]

Will be great to see how it's works with inductors, btw it shows voltage drop between ce, vs max voltage on c e on label of the tip42, of course vdrop depends on current, but it's good reference to know.

[johnkaradimas]

Thankyou for your video, very informative, and I learned about a new piece of equipment.
Thanks again

[jkbish]

how do you know which pins go where? no instructions came with device

[Pyridox]

I like mine. I bought the same type, but mine didn't come with the case... I mounted it to a small piece of Masonite. The clear case is nice. The tester does have some limitations when testing some thyristors. I'm not sure of what range of capacitance & resistance it can test, no manual or documentation came with it.

[bbs]

Very clear video and I like the comparison. Any chance of doing a video explaining/comparing some less common transistors - JFETS, N Channel FETS etc.. I have a tester and some of these components and some have tested correctly as JFET and some as N Channel. I tested some J201 from China and one tests as jfet and rest as PNP although all market jfet?!?!

[bbbvs]

can it make it on an onboard esr testing?The fact that it dont have a zero resistance button would cost on a reliable measurment with cables?

[douglasbollinger]

I've tried and tried to understand how to test a transistor with a diode mode voltmeter and it just confuses me to no end. So many people making different videos on how to test them then I read comments and people are telling the people who made the video they're wrong - I just don't know what to believe. I try to test transistors according to some videos and my test never happens like it does in videos. Is the video wrong? Is the transistor good / bad? I'm about to buy something like this because all of the electrical components / semiconductors out there a lot of people are selling are fakes so I wish I had something like this to help me determine if it's good or not. I've seen testers like this for sale and always wondered if they really work -- I think it's time for me to give in and buy a tester and lose some headaches. Thank you for the video - I enjoy your channel!

[erin]

Does this version measure with reliability ESR

[unboxingmaniac]

does it measure mosfet like irf510 & irfp360?