Review – Page 4

8W Rechargeable e-Cig Soldering Iron Review & Teardown | Voltlog #307

These days there is a wide choice of portable soldering iron and I think very few people still consider gas powered soldering irons who were quite popular 10-15 years ago because of their portability.

Now you can get USB powered soldering irons like this one for about $6, it’s rated for 8W, takes a 5V USB input and you can plug this into any power bank and fix a solder joint remotely. I’ve used this a couple of times while doing some electrical work on a car and it was very convenient.

You can also get more powerful, more polished soldering iron like the TS100 which normally takes a DC input from a laptop power brick in the 20V range but since USB Type-C with Power Delivery is a popular thing these days, you can also power it from a power bank capable of at least 12V. But this will be in the $50-60 range and you need to purchase a special power delivery trigger cable separately.

However today’s video is not about these two options, I’m gonna show you something that fits in between these two. It’s delivered rather impressively in a cheap plastic bag but let’s see what we get in here. Looks like they included a small amount of solder wire, that’s nice, every soldering iron should come with a small amount of solder. We get one of these small foldable sheet stands so you won’t burn something when setting the iron on a surface. This looks like our soldering iron tip and inside here we must have the soldering iron body itself and a charging cable

Wiistar 1080p 60fps HDMI USB Capture Card Review & Teardown | Voltlog #306

Ever since I got the new microscope and HDMI camera setup I was thinking of ways to capture video on my computer from the microscope camera. This particular camera is the Hayear 34MP model which I reviewed in Voltlog #292, it outputs 1080P at 60fps over HDMI and it does have on-board micro-sd card recording, so I could record images or videos to an sd-card but if you want to live-stream the camera feed, a capture card is needed on your computer. There are countless options in terms of capture cards but as usual I tried to find the cheapest solution that does the job well enough.

This particular unit came up in my searches, it’s relatively inexpensive when compared to other options that advertise similar specs 1080p at 60fps, it has two hdmi ports, one is an input for capture the other one should be a pass-through so you can connect a monitor at the same time of capturing video but we’ll see if that function works as advertised in a few minutes.

We have a USB Type-C connector for the computer side and an audio output 3.5mm jack. It is mentioned in the product page that it’s supposed to have a delay between audio and video so I’m guessing it’s related to this audio output port. The enclosure is aluminium which should help with heat dissipation and this particular unit is branded Wiistar but I believe you will find this under other names as well. Inside the box you get a USB A to Type-C cable about 1m long, a small usb A to type C adapter, a disk and a user manual.

Hantek TO11 1832C LCR Meter Review & Teardown | Voltlog #303

I never really had any professional LCR meter in my lab so far, I’ve only done measurements using this transistor tester which also features a rudimentary LCR function but that’s about to change because today we’ll be taking a close look at the Hantek TO11 handheld LCR meter.

There are two models for this LCR meter TO11 and TO22 and as far as I can tell the only advantages the more expensive TO22 model has are the extended test frequency range up to 100KHz and a second option for test voltage at 0.3V.

Next let’s mention the naming confusion, there is something going on with the naming of this instrument and I can’t quite figure it out. On hantek’s website you can find this LCR meter listed as model number 1832C and 1833C while I suspect all newer units are marked TO11 and TO22 respectively. I’ve emailed Hantek and asked them to clarify this and confirm whether or not there are any differences and why the two names and they replied saying the two are basically the same, the TO11 being an ODM version.

Here are some images captured during the teardown, click on the thumbnails to get a high resolution image of the LCR Meter internal PCBs.

Best Affordable Electronic Load – Kunkin KP184 Review | Voltlog #299

Welcome to a new video, this will be a review of a new test instrument I discovered, you know I like electronic loads and I’ve tested a bunch of hobby grade electronic loads in the past, these were sub $50 items and that budget also meant they had some disadvantages like limited power, limited reliability, limited connectivity, limited functionality and limited accuracy. You were basically trading off a bunch of stuff to be able to get a cheap affordable electronic load.

This is the Kunkin KP184 and I believe this will be a game changer for those who are looking to get something a bit more professional but are still limited by budget and they can’t go for the better instruments starting at 500 USD. The unit is delivered in a large box with nice padding protection and inside you get the instrument, a user manual and a few accessories like some spade connector, an RS232 cable and some wiring.

Let’s talk a bit about the specs of this unit, I have the KP184 model which is like their better equipped model, it works with both 110 and 240VAC, the load voltage can be a DC voltage between 1 and 150V, up to 40A, up to 400W. Measurement accuracy is 0.05% + 5 counts for both current and voltage with 1mV and 1mA of resolution, we’ll be verifying that later. There is RS232 and RS485 connectivity with a modbus protocol which is specified in the user manual and there is a piece of software for the PC, you have to obtain it from the manufacturer which doesn’t respond to emails but I’ve managed to source it and I’m gonna put a link to this in the description below the video and I’ll try to connect it towards the end of this video.

If you would like to checkout the teardown of the Kunkin KP184 click here.

Voltlog #292 – Hayear Full HD 34MP Microscope Camera Review HY-1139

Welcome to a new Voltlog, you might recognize this, the trinocular microscope which I reviewed in Voltlog #282, it’s a great tool to have especially if you start to feel your eyesight is getting weaker but also if you have good eyesight you can’t possibly solder 0402 passives comfortably or you can’t spot very small problems on soldering joints without something like this.

However I had an issue with the camera, the image is too black and so far there has been no solution provided by Banggood but I am still in contact with them and they’ve told me they are working with the supplier to find a solution but due to the whole Coronavirus (COVID-19) issue, there’s been delays.

So I’ve asked them to send another camera for review, it’s a Hayear branded microscope camera, it’s capable of up to 2K at 30fps and 1080P at 60fps, it has HDMI and USB 2.0 output as well as SD card storage support. The USB output is capable of 1080P at 30fps but that’s okay, cause I will be using this on it’s HDMI output on the 1080p 60fps setting.

Voltlog #290 – Riden RD6006 Output Noise Using Recommended Power Supply NVVV S-400-60

Welcome to a new Voltlog, this will be a rather short video cause I will only be addressing one short subject regarding the Riden RD6006 ripple noise. In my review of this power supply in Voltlog #284 I did measure the output ripple but that was measured while using a transformer to power the unit.

That transformer has very little output noise so the results we obtain can be considered best case scenarios but this may vary in practice, especially if you are using the recommended switch mode power supply. The output of that power supply may not be as clean as the one from the transformer so in this video I’m going to measure the output noise with the switch mode power supply installed.

I’m using the recommended NVVV 400W 60V 6.6A rated power supply, this is what RuiDeng officially recommends to use with their power supply kit. In Voltlog 284 part 3 I took a look inside this power supply so I will link that video on screen if you want to check it out.

Voltlog #285 – Is a Cheap Cordless Power Drill Any Good?

Is a cheap cordless power drill any good? That is a question I’ve been asking myself for a while now because I was in the market for a cordless power drill. I can get a well known brand like Makita which sells a kit with two 18V 3Ah batteries, the drill and a charger for about $200. The thing is I’m using a tool like this maybe once every 3-4 months for a couple of drills, generally soft materials or maybe to assemble some new piece of furniture and I don’t feel like spending $200 for a tool that’s not going to be used and worked for that money.

So I started looking at alternatives, there are the clones of Makitas and Dewalts available for probably less than half the price of the genuine stuff but why go that route? I don’t care about what’s written on the label and the color of the drill. One thing I care about is the shipping of the item, preferably I would like something that can be ordered and shipped from the EU for fast delivery and no additional taxes being paid for customs.

So I started looking at Chinese brands, this particular model got my attention on banggood.com, they call this a 36V cordless drill, it comes with two batteries and it’s available from a warehouse in the EU.

Voltlog #284 – Riden RD6006 Power Supply Review

Welcome to a new Voltlog, if you’ve been watching the channel for a while you might know I’m a fan of the gopher power supply units, I think they are great value for money, they’re simple and they have good specs, in fact I reviewed their latest revision in Voltlog #255 and it had very low noise at the output, even though it is a switch mode power supply. They’re pretty compact, they don’t take up much space on the bench so what’s there not to like about these?

But in recent years there’s been another company which has slowly built-up a name among hobbyists due to their really low priced power supply modules, the name of the company is RuiDeng and they’ve been selling these compact switch mode power supply modules for $20 to $30 for years. They were not great specs, the quality was not great, you needed an external power supply unit but they had a bunch of functionality built into that color TFT display and they were cheap so everyone gave them a try

Now RuiDeng has developed and released a new model RD6006 which resembles a real bench power supply. It has a bigger front panel and it comes with a separate enclosure and power supply unit which are optional.

Voltlog #282 – Did I get a trinocular microscope for micro-soldering and inspection?

Welcome to a new Voltlog, to save you from waiting, the short answer is yes, I did get a microscope for the lab but before I show you the microscope let’s talk about why I got a microscope and why you might want one. If you are occasionally soldering boards, electronic kits, mostly through hole components or even surface mount down to 0603 and you have good eyesight, then chances are, you don’t need such a microscope, I’ve been doing that for years.

On the other hand, if you want to be able to solder surface mount components smaller than 0603 comfortably or you want to do board level repairs on modern gadgets like smartphones and laptops, then you most definitely need a microscope as it will massively improve the quality of your soldering and the general repair process at your bench.

Voltlog #281 – SuperOBD2 ChipTuning Box Yet Another Scam

A while back in Voltlog #231 I took a look at a device called nitro obd2, it was this $2 OBD2 port dongle, which supposedly when plugged into your cars OBD2 port will enhance the performance by tuning the ECU. This was of-course a scam as I proved in the video by doing a teardown, the dongle did nothing but flash some LEDs. But there were still people who left some comments saying they we’re seeing performance improvements after using the $2 tuning gadget. Those are ofcourse false claims, maybe those people just don’t have a clue what’s going on, or maybe they’re the actual sellers offering these on ebay and aliexpress.