Specifications: Resistor: 0.1ω-50Mω Capacitor: 25pF-100000uF Inductance: 0.01mH - 20H Working power: DC-9V Standby current: 0.02uA Operating current: 25mA Material:Metal+Plastic Size: about 11.1cm/4.37"x2.6cm/1.02"x8.5cm/3.34" [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
Thanks. Looking at it I wasn't sure how to put the case together. I had one of these but it supposedly was a fake one and didn't have the metallic clock crystal. It broke but amazon refunded it even like 8 months from when I bought it because it was a fake and not what is shown in the pictures. Got the supposed real one with the clock crystal off aliexpress with the case. Case kinda sucks. My 3d printed one was better imo. I can see trying to test a surface mount component on the pads and it getting lose and stuck inside the case...
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
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.
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!
Hi again! I received my tester today. I tested a 2SC2029 transistor I bought (new). It tested properly as an NPN. Thing is, I had put this transistor into a cb radio and the radio only did 1 watt output. (The schematics said 2SC2029 for this particular radio.) (I'm also aware of fake semiconductors being sold.) I replaced it with a different transistor and the radio does 5 watts output. So even though it tested ok, it was weak. Do you know if there a way with this tester if it you can tell if the transistor is weak or "strong" like it should be? I like the tester so far though, seems like a handy little tool!
It's not a lab grade piece of equipment but it will give a reasonable idea of what the esr is with some degree of accuracy and repeatability that should be sufficient for a hobbyist
If this small transgression sickens you then I suggest you not watch any of my other videos. Some of the other heinous acts you'll see may cause you to become hospitalized.
+tkarlmann it can be cleaned with either rubbing alcohol or nail polish remover(acetone) and a match stick, wrap a little tissue on the match stick wood side.
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?!?!
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.
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.
I don't know for sure. You could look at it one of two ways...1. just run a 9v as intended to be conservative. 2. These are cheap enough that if you do pop it in 11v you could just replace it.
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.
it does, but dont rely only on its measurements.. they are not very accurate. it's more for identifying the pins and the components than for reading their values.
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).
I got mine from there too. :) Around US$14 with registered shipping. www.banggood.com/LCR-T4-Mega328-Transistor-Tester-Diode-Triode-Capacitance-ESR-Meter-With-Shell-p-1112140.html Used this coupon for discount: elec
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.
Specifications: Resistor: 0.1ω-50Mω Capacitor: 25pF-100000uF Inductance: 0.01mH - 20H Working power: DC-9V Standby current: 0.02uA Operating current: 25mA Material:Metal+Plastic Size: about 11.1cm/4.37"x2.6cm/1.02"x8.5cm/3.34" [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
Is the battery ok? You might wanna try this just make sure you got the components he had for calibration...etc. th-cam.com/video/epIeS7Rk3EA/w-d-xo.html
There is another version that has a frequency generator output and voltmeter input, in addition to the ZIF socket It also has a rotary encoder with a knob instead of the push button. I wish somebody would review that variant. I seems to have the most bells and whistles, there is,a case for it and it is still very cheap.
![ได้เวลา! พาน้องแฝดฉีดวัคซีนครบ 1 เดือน🫣 [cc] แดนแพทตี้ SS2 | EP.52 |](http://i.ytimg.com/vi/IzeLtaXBLNE/mqdefault.jpg)
Specifications:
Resistor: 0.1ω-50Mω
Capacitor: 25pF-100000uF
Inductance: 0.01mH - 20H
Working power: DC-9V
Standby current: 0.02uA
Operating current: 25mA
Material:Metal+Plastic
Size: about 11.1cm/4.37"x2.6cm/1.02"x8.5cm/3.34"
[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
Thanks. Looking at it I wasn't sure how to put the case together. I had one of these but it supposedly was a fake one and didn't have the metallic clock crystal. It broke but amazon refunded it even like 8 months from when I bought it because it was a fake and not what is shown in the pictures. Got the supposed real one with the clock crystal off aliexpress with the case. Case kinda sucks. My 3d printed one was better imo. I can see trying to test a surface mount component on the pads and it getting lose and stuck inside the case...
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
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.
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.
You can test capacitors with a fluke, maybe not yours.
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!
Hi again! I received my tester today. I tested a 2SC2029 transistor I bought (new). It tested properly as an NPN. Thing is, I had put this transistor into a cb radio and the radio only did 1 watt output. (The schematics said 2SC2029 for this particular radio.) (I'm also aware of fake semiconductors being sold.) I replaced it with a different transistor and the radio does 5 watts output. So even though it tested ok, it was weak. Do you know if there a way with this tester if it you can tell if the transistor is weak or "strong" like it should be? I like the tester so far though, seems like a handy little tool!
I'm just considering ordering one of these and this video has helped me make up my mind. £3:56 ebay
The fact that I bought one of those on Aliexpress for FIVE EUROS, shipping included, amazes me.
I love mine and the best thing is....... uses very little bench space.
This video deserves more views! Informative and helpful, thanks!
Does this version measure with reliability ESR
It's not a lab grade piece of equipment but it will give a reasonable idea of what the esr is with some degree of accuracy and repeatability that should be sufficient for a hobbyist
anybody tried to test components without remove them from circuit?
Would like to know the answer to this question too
Components have to be removed from circuit to test them
Small point: It sickens me to see you putting parts with what appears to be tape residue on the ends into those testers!
If this small transgression sickens you then I suggest you not watch any of my other videos. Some of the other heinous acts you'll see may cause you to become hospitalized.
+tkarlmann it can be cleaned with either rubbing alcohol or nail polish remover(acetone) and a match stick, wrap a little tissue on the match stick wood side.
LOL, perhaps a warning at the beginning of your videos is in order. If it saves just one person it will have been worth the effort.
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?!?!
You can't trust any of those parts from China.
OMG, OMG its so fucking cute.
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.
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?
Huh?
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.
It takes a pp3 9v but but what voltage range will it work with? Could I use a small rc lipo 3s (11.1v)? Or will it go pop
I don't know for sure. You could look at it one of two ways...1. just run a 9v as intended to be conservative. 2. These are cheap enough that if you do pop it in 11v you could just replace it.
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.
does it measure mosfet like irf510 & irfp360?
it does, but dont rely only on its measurements.. they are not very accurate. it's more for identifying the pins and the components than for reading their values.
Not with repeatable reliable results
Thankyou for your video, very informative, and I learned about a new piece of equipment.
Thanks again
Currently unavailable in Amazon.ca :(
In the UK we call them finger joints.
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).
I got mine from there too. :)
Around US$14 with registered shipping.
www.banggood.com/LCR-T4-Mega328-Transistor-Tester-Diode-Triode-Capacitance-ESR-Meter-With-Shell-p-1112140.html
Used this coupon for discount: elec
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.
Specifications:
Resistor: 0.1ω-50Mω
Capacitor: 25pF-100000uF
Inductance: 0.01mH - 20H
Working power: DC-9V
Standby current: 0.02uA
Operating current: 25mA
Material:Metal+Plastic
Size: about 11.1cm/4.37"x2.6cm/1.02"x8.5cm/3.34"
[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
Can anybody tell me about the error on the screen when I push the yellow button to turn on the screen, it says "cell u 78mv?
Is the battery ok? You might wanna try this just make sure you got the components he had for calibration...etc.
th-cam.com/video/epIeS7Rk3EA/w-d-xo.html
how do you know which pins go where? no instructions came with device
It's on the circuitboard the first three holes are 1 2 and 3, and the other 5 are 1 1 1 1. The top row and bottom row are the same
Trial and error
It's gibe, not jive.
excellent Demo
That's cool!
How to check frequency with it?
There is another version that has a frequency generator output and voltmeter input, in addition to the ZIF socket It also has a rotary encoder with a knob instead of the push button. I wish somebody would review that variant. I seems to have the most bells and whistles, there is,a case for it and it is still very cheap.
good afternoon to measure speaker impedance?
I never tried that...but I will later
No, only speaker DC resistance on Ohms
You can measure the inductance of the voice coil in Millohenries then calculate at any given frequency, 2 x6.27 x F x L
to much rant and to much bad editing.
You spelled "to" wrong.